Continuous Web Patents (Class 399/329)
  • Patent number: 11372353
    Abstract: A device includes a rotator having a rotation axis, a belt, a belt support surrounded by the belt, and a sliding sheet configured to be pinched at the nip between an inner peripheral surface of the belt and the belt support. The belt support is configured to form a nip with the rotator. One of the belt support and the sliding sheet includes a hook engaging portion. The hook engaging portion includes an aperture. The other of the belt support and the sliding sheet includes a hook engaged to the aperture.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 28, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tokifumi Tanaka, Kenji Takeuchi
  • Patent number: 11370200
    Abstract: The purpose of the present invention is to provide a fluororesin film or fluororesin laminate excellent in heat resistance and excellent in interlayer adhesion to an object to be laminated, such as a prepreg, a method for producing a hot pressed laminate using said film or laminate, and a method for producing a printed circuit board. The fluororesin film contains a fluororesin having a melting point of from 260 to 380° C., and has an arithmetic average roughness Ra of at least 3.0 nm when inside of 1 ?m2 of at least one surface thereof in the thickness direction is measured by an atomic force microscope. The laminate 1 has a layer A10 containing said fluororesin and a layer B12 made of another substrate, wherein the layer A10 has an arithmetic average roughness Ra of at least 3.0 nm when inside of 1 ?m2 of a second surface 10b thereof is measured by an atomic force microscope.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: June 28, 2022
    Assignee: AGC Inc.
    Inventors: Tomoya Hosoda, Tatsuya Terada, Atsumi Yamabe, Nobutaka Kidera, Wataru Kasai
  • Patent number: 11360417
    Abstract: A heater includes a substrate formed of metal into a plate shape in which a length in a longitudinal direction thereof is greater than a length in a short direction thereof when viewed in a thickness direction thereof, an insulating layer formed of insulating material on a first surface of the substrate on a first side in the thickness direction, a heating element arranged on the insulating layer and configured to generate heat by flowing electric current therethrough, and a cover layer arranged to cover the heating element. The heater is a warped shape when receiving no external force, such that a center portion of the heater in the longitudinal direction protrudes to the first side in the thickness direction compared to both end portions of the heater in the longitudinal direction.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: June 14, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoichiro Ikegami, Tomoo Akizuki, Hiroki Sasame, Yusuke Shimizu, Tatsuya Kinukawa
  • Patent number: 11347169
    Abstract: A fixing apparatus includes a belt, a pad member, a pressure member, a heating roller, a stretching roller, and, an outer stretching roller. The outer stretching roller disposed between the heating roller and the stretching roller and configured to press the heating roller from an outer surface of the belt and bring the belt into contact with the heating roller. In a cross section orthogonal to a rotation axis of the pressure member, a surface between the heating roller and the stretching roller of the belt in a state where the belt is pushed toward the heating roller by the outer stretching roller is located inside that of the belt in a state where the outer stretching roller is removed.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 31, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shutaro Saito, Keisuke Yoshida, Atsushi Ishigami
  • Patent number: 11340542
    Abstract: A fixing device that fixes a toner image to a medium, includes: a heating body rotatably supported; an auxiliary heating member disposed along an inner surface of the heating rotation body; a temperature sensor facing the inner surface via the auxiliary heating member; a first elastic body configured to press, via a first force, the temperature sensor against the inner surface; and a second elastic body configured to press, via a second force, a sliding member against the inner surface. A product of a distance from a center of the auxiliary heating member to the first elastic body and the first elastic force is equal to a product of a distance from the center to the second elastic body and the second elastic force.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 24, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Shuji Yokoyama
  • Patent number: 11340546
    Abstract: A tubular fuser device rotates and is in contact with a sheet on which a positively charged toner image is formed to fix the toner image to the sheet. The fuser device includes a tubular substrate made of a metal, a rubber layer covering the outer periphery of the substrate, an adhesion layer covering the outer periphery of the rubber layer, and a surface layer made of a resin covering the outer periphery of the adhesion layer. In the fuser device, C·R/A2 is less than 1.1×10?53 F?/cm4 in which C·R/A2 is a product of an electrostatic capacity per unit area C/A in a thickness direction of the fuser device and an electrical resistance per unit area R/A in the thickness direction of the fuser device.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 24, 2022
    Inventors: Masaya Suzuki, Kenji Sasaki, Wataru Nemoto, Hidetomo Mukai
  • Patent number: 11334011
    Abstract: A heating device for an image forming unit includes a heater unit, a cylindrical film, a support member, a first heat transfer unit, and a second heat transfer unit. The cylindrical film is at least partially disposed around the heater unit. The support member is configured to support the heater unit above the cylindrical film and such that the heater unit is located between the support member and the cylindrical film. The first heat transfer unit is disposed between the cylindrical film and the heater unit and in confronting relation with a first surface of the heater unit. The first heat transfer unit has a first contact area with the heater unit. The second heat transfer unit is disposed between the heater unit and the support member and in confronting relation with a second surface of the heater unit. The second surface is opposite the first surface.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: May 17, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Shuji Yokoyama
  • Patent number: 11300909
    Abstract: According to one embodiment, a heating device includes a belt and a heat generating member. The belt has a tubular shape. The heat generating member is provided inside the belt. The heat generating member is formed in an arc shape along the inner peripheral surface of the belt. The heat generating member is slidably in contact with the inner peripheral surface of the belt. When the amount of deflection of the belt is D, the radius of curvature of the inner peripheral surface of the belt is A, and the radius of curvature of the outer peripheral surface of the heat generating member is B, the following equations (1) and (2) are satisfied: D?10 mm??(1) 0.4 mm?A?B?0 mm??(2).
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: April 12, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Shuji Yokoyama
  • Patent number: 11300907
    Abstract: A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt, a first stay surrounded by the belt and extending in a width direction parallel to the rotation axis, a holder holding the nip forming member, and an urging member urging the first stay toward the rotator. The nip forming member is configured to, with the rotator, pinch the belt to form a nip. The first stay includes a first end and a second end. The holder includes a first engaging portion positioned at a first end of the holder, and a second engaging portion positioned at a second end of the holder. The first engaging portion engages the first end of the first stay. The second engaging portion engages the second end of the first stay.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 12, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroshi Handa, Tomonori Watanabe, Shuhei Fukue, Kenji Takeuchi, Kazuna Taguchi, Tatsuo Ogasawara
  • Patent number: 11294308
    Abstract: In an image forming device, a first fixing member has a roller. A second fixing member has a belt to form a nip together with the first fixing member. A pressure modifying mechanism modifies a nip pressure at the nip to selected one of a first nip pressure and a second nip pressure smaller than the first nip pressure. A controller drives the first motor to drive the roller and fixes the developer image on a sheet in a state that the nip pressure is the first nip pressure. The controller modifies the nip pressure from the first nip pressure to the second nip pressure while driving the first motor in a case where a final sheet among one or more sheets fixed according to a print job has passed the nip, and halts the first motor after the nip pressure is modified to the second nip pressure.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: April 5, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yusuke Mizuno, Fumitake Tajiri, Tokifumi Tanaka, Tomonori Watanabe, Sadaharu Kato, Hirotaka Imaeda
  • Patent number: 11281138
    Abstract: A heating apparatus includes a cylindrical film and a pressing element that rotates with the cylindrical film and forms a nip with the cylindrical film. A medium is conveyed through the nip from an upstream side to a downstream side. The heating apparatus further includes a guide member arranged inside the cylindrical film and including a first end portion that contacts the cylindrical film at a location that is downstream of an upstream end of the nip, and a substrate arranged inside the cylindrical film and on which a heating element is disposed. An upstream end of the substrate is located downstream of the first end portion of the guide member.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: March 22, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kazuhiko Kikuchi
  • Patent number: 11281142
    Abstract: In a fixing device, a pressure unit is pressed toward a roller by an arm, to form a nip region. The pressure unit includes a belt configured to contact the roller in a nip region, a pressure pad configured to press the belt in combination with the roller, and a side guide including an end guide surface configured to guide a side end of the belt, and a stay configured to support the pressure pad. A supporting member is located on an outer side of the side guide that is opposite to an inner side on which the end guide surface faces. The supporting member is held between the stay and the arm, the supporting member comprising a contact surface which contacts the side guide and on which the side guide is swayably supported.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: March 22, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Mingguang Zhang, Tatsuo Ogasawara, Kenji Takeuchi, Tokifumi Tanaka
  • Patent number: 11275331
    Abstract: A heater includes a single plate substrate that extends along a first direction, and a first heat generating member disposed on a first surface of the substrate and covering a first portion of the first surface. The first heat generating member has electrodes formed at both end portions thereof in a second direction crossing the first direction and is electrically connected to a power source. The heater further includes a second heat generating member disposed on a second surface of the substrate and covering a second portion of the second surface at a location on the substrate that is offset with respect to a location of the first portion on the substrate in the first direction. The second heat generating member has electrodes formed at both end portions thereof in the second direction and is electrically connected to the power source.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: March 15, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Osamu Takagi
  • Patent number: 11269272
    Abstract: A fixing device includes a rotatable fixing belt, a pad, a rotatable pressing member, a pressing member driving source, an auxiliary driving roller, and a transmission mechanism for transmitting a driving force from the pressing member driving source to the auxiliary driving roller, wherein a peripheral speed of the auxiliary driving roller is faster than a peripheral speed of the pressing member, and a steering roller provided so as to stretch the fixing belt at the inner surface of the fixing belt in a position downstream of the auxiliary driving roller and upstream the pad with respect to a rotational direction of the fixing belt. The steering roller adjusts a position of the fixing belt with respect to a widthwise direction of the fixing belt by inclining the fixing belt so as to be positioned within a predetermined range.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: March 8, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidekazu Tatezawa, Youichi Chikugo, Rikiya Takemasa, Kenichi Tanaka, Yutaro Tsuno, Mitsuru Hasegawa, Suguru Takeuchi, Hiroki Kawai, Yasuharu Toratani, Ayano Ogata
  • Patent number: 11262678
    Abstract: A fixing device includes an endless fixing film that can revolve, a contact member that comes into contact with an inner peripheral surface of the fixing film, a pressure roller that press-contacts the fixing film from an outside of the fixing film toward the contact member to form a fixing nip area between the fixing film and the pressure roller, a heater that heats the fixing film, and a reflective member that reflects light emitted from the heater toward the fixing film. A protective member that allows irradiation of the light to the fixing film is provided between the heater and the fixing film.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: March 1, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tomohiro Maeda
  • Patent number: 11237507
    Abstract: A fixing device includes a heater including a first sealing portion and a second sealing portion disposed at a first lateral end and a second lateral end of a tube in a longitudinal direction of a fixing rotator, respectively. The first sealing portion includes a first inboard end distanced from a first lateral end of a heat generating portion with a first distance in the longitudinal direction of the fixing rotator. The second sealing portion includes a second inboard end distanced from a second lateral end of the heat generating portion with a second distance in the longitudinal direction of the fixing rotator. The second distance is smaller than the first distance. A driving force transmitter transmits a driving force to the fixing rotator or an opposed rotator and is disposed in a first lateral end side of the fixing device where the first sealing portion is disposed.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: February 1, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Natsuki Watanabe
  • Patent number: 11237511
    Abstract: A fixing apparatus includes: a first rotating body that contacts a sheet for printing and heats the sheet; a second rotating body that rotates while pressing the first rotating body; a motor that rotates the first rotating body; and a hardware processor that determines whether an abnormal noise occurs on the basis of a plurality of condition values including a torque value of the motor, wherein the hardware processor performs abnormal noise prevention control that increases the rotation of the first rotating body or weakens pressing applied by the second rotating body to the first rotating body in a case where it is determined that the abnormal noise occurs.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 1, 2022
    Assignee: Konica Minolta, Inc.
    Inventor: Yoshikazu Tsubotani
  • Patent number: 11237508
    Abstract: A fuser, having a heater, a holder, and a first wire spring, is provided. The heater is in a form of a planar plate and has a first face and a second face. The holder has a supporting base supporting the first face of the heater. The first wire spring retain the heater on the holder. The first wire spring has a first facing portion, a first engageable portion, and a second engageable portion. The first facing portion faces and supports the second face of the heater. The first engageable portion and the second engageable portion extend from one and the other ends of the first facing portion. The first engageable portion and the second engageable portion are engageable with the holder in an end area on one side and an end area on the other side of the heater in a widthwise direction.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: February 1, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yuichi Ikeno
  • Patent number: 11209757
    Abstract: A slide member over which a sliding member is configured to slide includes a slide portion over which the sliding member slides. The slide portion is weaved with a first fiber having a first color. The slide member further includes a non-slide portion over which the sliding member does not slide. The non-slide portion is weaved with a second fiber having a second color that is different and distinguished from the first color.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: December 28, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Haruyuki Honda
  • Patent number: 11194274
    Abstract: A fuser including an endless belt, a pressurizing roller, a heater, a shaft supporting member, rotation member, and a washer. The pressurizing roller is to form a heating nip with the endless belt and is to rotate to drive the endless belt. The heater is to supply heat to the heating nip. The supporting member includes a shaft and a flange The rotation member is inserted into an inner diameter portion of the endless belt to support the endless belt, the rotation member is to be slidably rotatable with respect to the shaft. A washer interposed between the rotation member and the flange in an axial direction to regulate a movement of the endless belt in the axial direction, the washer is to slide-contact with at least one of the flange and the rotation member.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: December 7, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Dong Kyun Kim, Bong Hee Lee, Seong Yul Kim, Se Min An, Jin Seok Lee
  • Patent number: 11163250
    Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: November 2, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuo Yasui, Junichi Moteki, Akiyoshi Shinagawa, Takuma Tadomi, Ikuo Nakamoto, Toru Katsumi, Takahiro Ohnishi
  • Patent number: 11157215
    Abstract: An information processing apparatus includes an obtaining unit and a control unit. The obtaining unit obtains, from a verification apparatus configured to perform, for each printed material of printed materials, verification about whether the printed material satisfies a given condition, information that is based on a result of the verification. Each of the printed materials is a recording medium on which an image is printed by a printing apparatus. The control unit performs control so that output of the printed materials from the printing apparatus is suppressed when a given number of printed materials are handled as one bundle and the number of printed materials that satisfy the given condition reaches the given number based on the verification result. The control unit performs control so that insertion paper interspacing a plurality of bundles is output next to the given number of printed materials that satisfy the given condition.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: October 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Kuroda
  • Patent number: 11156947
    Abstract: A fixing device includes: an endless fixing belt; a pad unit and a driven roller disposed opposite to an inner peripheral surface of the fixing belt so as to entrain the fixing belt; a pair of first supports located so as to sandwich the fixing belt in a width direction of the fixing belt, the pair of first supports supporting the pad unit by fixing the pad unit; and a pair of second supports located so as to sandwich the pair of first supports in the width direction of the fixing belt, the pair of second supports rotatably journaling the driven roller.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: October 26, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventor: Naoki Yamamoto
  • Patent number: 11143995
    Abstract: A fixing belt and a fixing device suppress charging of the fixing belt and permit securing of a withstand voltage of secondary parts of the fixing belt are provided in addition to a heater. The fixing belt is formed of a tubular endless fixing film including, in order from an inner peripheral side of the film, a base layer, an elastic layer, and a release layer. A surface resistivity of the fixing belt measured from the base layer side is 7 [LOG ?/sq.] or more and 10 [LOG ?/sq.] or less.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 12, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Ryota Saeki
  • Patent number: 11126118
    Abstract: A fixing device includes a hollow rotating body, a pressing member that applies pressure to a recording medium and transports the recording medium in a transport direction along with rotation of the rotating body, a heating member that is in contact with the rotating body while extending in an axial direction perpendicular to the transport direction, and a holding member that holds the heating member. The heating member includes a contact portion and non-contact portions, the contact portion has a first end portion on a downstream side of the contact portion in the transport direction, each non-contact portion has a second end portion on the downstream side in the transport direction, and each second end portion is thicker than the first end portion in a direction perpendicular to the transport and axial directions. The holding member is in contact with the second end portions in the transport direction.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 21, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Toshiyuki Miyata, Jouta Kobayashi
  • Patent number: 11126120
    Abstract: A fixing device includes a heating section. The heating section includes a heater, a heater holding member, a heat-sensitive body, a cover member, and an urging member. The heater holding member holds the heater. The heat-sensitive body faces the heater. The cover member covers the heat-sensitive body. The urging member urges the cover member in a first direction which is toward the heater from the heat-sensitive body. The urging member extends in a second direction intersecting with the first direction and engages with the heater holding member and the cover member.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: September 21, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hironori Takahashi, Masakazu Uehara, Tomohiro Watatani, Yuhiro Sakai, Fumito Nakamoto
  • Patent number: 11112737
    Abstract: A fixing apparatus includes a tubular film, an elongate plate-like heater including a first surface in contact with an inner surface of the film and a second surface opposite to the first surface, the heater being in contact with the inner surface of the film with the second surface, a heat conducting member that is long along the length of the heater and is in contact with the second surface of the heater, and a support member capable of rotating the film while supporting the heater, with the heat conducting member therebetween. The heat conducting member includes an extending portion extending, outside an upstream end of the heater in a rotational direction of the film, in a direction from the second surface of the heater toward the first surface. The extending portion includes a contact portion protruding from the first surface of the heater toward the film into contact therewith.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: September 7, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Morihara, Masahiko Suzumi, Tomoo Akizuki, Tatsuya Kinukawa, Takeharu Nakada, Akihito Kanamori, Yusuke Nakazono, Shinji Kubo
  • Patent number: 11099506
    Abstract: A sheet conveying device, which is included in a fixing device and an image forming apparatus, includes a sheet contacting body and a lateral relative position shifting body. The sheet contacting body is configured to contact a sheet to be conveyed. The lateral relative position shifting body is configured to shift a passing position of the sheet being conveyed toward the sheet contacting body, in a width direction perpendicular to a sheet conveying direction and a relative position to the sheet contacting body, each time the sheet is conveyed by a number of sheets based on a setting. The setting of the number of sheets varies based on information of the sheet.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: August 24, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Fumihiro Hirose, Naoto Suzuki, Yohhei Watanabe, Akiyasu Amita, Masateru Ujiie, Shinichi Namekata, Takashi Sakamaki, Teppei Kawata
  • Patent number: 11092917
    Abstract: A fixing unit includes an endless fixing belt, a rotary member configured to form a fixing nip portion, a resin-made pad configured to press an inner circumferential surface of the fixing belt by a peripheral surface toward the fixing nip portion, and a stay configured to support the pad. The stay includes a projection configured to protrude toward the pad. The pad includes a hole formed at a center in the width direction on the opposite surface and configured to fit with the projection.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: August 17, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaro Tsuno, Youichi Chikugo, Rikiya Takemasa, Kenichi Tanaka, Hidekazu Tatezawa
  • Patent number: 11086260
    Abstract: A transport device includes a first transport member that orbits in a predetermined direction and transports a sheet-like medium; a second transport member that forms a first sandwiching region that is curved and a second sandwiching region that is curved in a direction opposite to the first sandwiching region between the first transport member and the second transport member, and sandwiches and transports the medium in the first sandwiching region and the second sandwiching region; and a changing unit that changes a positional relationship between the first transport member and the second transport member so as to increase a width of the other of the first sandwiching region and the second sandwiching region in a transport direction of the medium without increasing a width of one of the first sandwiching region and the second sandwiching region in the transport direction of the medium.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: August 10, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Shingo Akiyama, Masataka Konishi, Shogo Kamiya, Satoshi Nakamura
  • Patent number: 11079706
    Abstract: A fixing device includes a belt member, a pressing member, a first member, a second member, and a support member. The pressing member forms a passer between the pressing member and the belt member. The passer passes while pressing a recording medium. The first member comes into contact with the belt member on an inner side of the belt member. The first member receives pressing force in a first direction from the pressing member. The second member is disposed on the inner side of the belt member. The second member receives pressing force of the pressing member with the first member interposed therebetween. The support member is interposed between the first member and the second member. The support member supports the first member so that an area over which the support member supports the first member and an area over which the support member is supported by the second member overlap in the first direction.
    Type: Grant
    Filed: April 26, 2020
    Date of Patent: August 3, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Jouta Kobayashi
  • Patent number: 11054769
    Abstract: A fixing device includes a flexible endless belt, a pressure rotator disposed outside the belt and facing the belt, a nip formation pad disposed inside a loop of the belt and configured to form a fixing nip between the belt and the pressure rotator, a heater configured to heat the belt, a flange configured to support an end portion of the belt, a first lubricant, and a second lubricant. The first lubricant is applied between the nip formation pad and an inner surface of the belt. The second lubricant is applied between the flange and the inner surface of the belt. The second lubricant has a temperature characteristic different from a temperature characteristic of the first lubricant.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: July 6, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroyuki Shimada
  • Patent number: 11054767
    Abstract: A nip formation member is configured to be disposed inside a loop of a rotatable belt. The nip formation member includes a base, a thermal equalizer, an attachment, and a fastener. The base has a bottomed fastening hole. The thermal equalizer is configured to face the belt and a surface of the base not having the bottomed fastening hole. The thermal equalizer has a higher thermal conductivity than the base. The attachment has a fastening hole and face another surface of the base having the bottomed fastening hole. The attachment is configured to fix and position the base and the thermal equalizer. The fastener is fastened to the bottomed fastening hole of the base through the fastening hole of the attachment from the attachment.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: July 6, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiharu Takahashi, Hiroyuki Shimada, Hitoshi Fujiwara
  • Patent number: 11054774
    Abstract: A nip forming member includes a base material and a thermal conductive member that overlaps the base material and has a higher thermal conductivity than a thermal conductivity of the base material. The base material has protrusions projecting to one side or another side in a short direction on a part of a longitudinal direction on both sides in the short direction. The thermal conductive member has fitting holes into which the protrusions are fitted in both sides in the short direction.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: July 6, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiharu Takahashi, Naoki Iwaya, Hitoshi Fujiwara, Ippei Fujimoto, Yoshiki Yamaguchi
  • Patent number: 11054773
    Abstract: A heater includes a base layer, a heat generator mounted on the base layer, and a slide layer mounted on the base layer. A sliding face of a counterpart slides over the slide layer. The slide layer is made of a material containing fluorine and includes a slide face that contacts the sliding face of the counterpart. The slide face of the slide layer has a surface roughness that is greater than a surface roughness of the sliding face of the counterpart.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 6, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Furuichi, Kenji Ishii, Kenichi Hasegawa, Takashi Fujita, Tomoya Adachi, Yukimichi Someya, Daisuke Inoue, Masahiro Samei, Takayuki Seki
  • Patent number: 11036169
    Abstract: A fixing device includes a cylindrical film, a support member disposed on an inner peripheral surface of the film, a heating member supported by the support member and provided slidably with the film, and a pressing member that forms a pressure contact portion together with the heating member through the film. The fixing device heats a recording medium while pressing the recording medium at the pressure contact portion. A first thermally conductive member and a second thermally conductive member are provided between the heating member and the support member. The first and second thermally conductive members having thermal conductivity higher than that of the support member are configured to engage with each other.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: June 15, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Watanabe, Masafumi Maeda
  • Patent number: 11029630
    Abstract: A support of a heater in a fuser, the support including: two parallel sides and a back side, the three sides forming a U shaped cross section, the cross section having a non-uniform wall thickness.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 8, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Bartley Mark Hirst
  • Patent number: 11022917
    Abstract: An image heating apparatus includes an endless film, a pressing member forming a nip portion together with the film, and a film holding member provided at a longitudinal end portion of the film. The film holding member includes a movable member including a restriction surface configured to restrict a longitudinal movement of the film and a guide surface configured to guide a rotation of the film, the guide surface including a lubricant application unit. The film holding member further includes a biased member supporting the movable member and including a force reception portion, and is configured to cause the movable member to move upstream in a conveyance direction of the recording material at the nip portion relative to the biased member and cause the lubricant application unit to abut against an inner peripheral surface of the fixing film, when the movable member moves longitudinally.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tohru Saito, Hideaki Yonekubo, Keisuke Mochizuki
  • Patent number: 11022916
    Abstract: An image forming apparatus according to the present invention includes: a driver that presses and separates two rollers via a belt; a detector that detects a position of the belt in an axial direction of one roller of the two rollers; and a hardware processor that calculates, based on a detection result by the detector, a first movement amount of the position of the belt in the axial direction when the belt is made to travel for a predetermined time in a state where the two rollers are separated and a second movement amount of the position of the belt in the axial direction when the belt is made to travel for the predetermined time in a state where the two rollers are pressed.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: June 1, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventor: Daisuke Murakami
  • Patent number: 11016426
    Abstract: According to one embodiment, a fixing device, includes a fixing member having a first surface configured to be pressed against a recording medium and a heater on a second surface of the fixing member. A first heat conducting member contacts aback surface side of the heater, and a second heat conducting member is provided to be moveable between a first state, in which the second heat conducting member is in contact with the first heat conducting member and the second surface of the fixing member, and a second state, in which the second heat conducting member is contacting the first heat conducting member, but separated from the second surface of the fixing member.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 25, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kazuhiko Kikuchi
  • Patent number: 11007796
    Abstract: An image forming apparatus includes a heater, a first temperature sensor, a second temperature sensor, and processing circuitry. The heater is configured to heat a medium on which an image is formed. The first temperature sensor is configured to measure a temperature of the heater. The second temperature sensor is configured to measure a temperature of a region heated by the heater. The processing circuitry is configured to control the temperature of the heater. The processing circuitry is configured to control the heater based on a comparison between a measured temperature of the first temperature sensor and a first threshold value, and a comparison between a measured temperature of the second temperature sensor and a second threshold value.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: May 18, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Osamu Kizaki, Junji Nakai, Masafumi Yamada, Shizuho Katahira
  • Patent number: 10996600
    Abstract: A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt, a first stay surrounded by the belt and extending in a width direction parallel to the rotation axis, a holder holding the nip forming member, and an urging member urging the first stay toward the rotator. The nip forming member is configured to, with the rotator, pinch the belt to form a nip. The first stay includes a first end and a second end. The holder includes a first engaging portion positioned at a first end of the holder, and a second engaging portion positioned at a second end of the holder. The first engaging portion engages the first end of the first stay. The second engaging portion engages the second end of the first stay.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: May 4, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroshi Handa, Tomonori Watanabe, Shuhei Fukue, Kenji Takeuchi, Kazuna Taguchi, Tatsuo Ogasawara
  • Patent number: 10996599
    Abstract: Certain embodiments provide a fixing device, for fixing a toner image formed on an image receiving medium to the image receiving medium, including: a pressure rotation member; a pressure member against which the pressure rotation member is pressed across the image receiving medium; a heating roller separated from the pressure member and configured to rotate around a rotation axis thereof; an annular belt wound around the heating roller and the pressure member; a belt regulating member configured to include an opening into which the heating roller is loosely fitted and an abutting surface abutting against the annular belt; and a stopper arranged to face an outer edge of the annular belt contacting the heating roller across the belt regulating member.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 4, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Satoshi Himeno
  • Patent number: 10990043
    Abstract: A fixing device receives a recording material having a toner image and applies pressure and heat to fix the toner image. The fixing device includes a fixing member, a sliding member, a pressing member, and a heating member. The fixing member has a rotatable endless belt shape that includes an inner circumferential resin layer. The sliding member is pressed against the inner circumferential surface of the fixing member with a lubricant interposed between the sliding member and the inner circumferential surface. The sliding member has a resin coating layer and slides on the inner circumferential surface. The pressing member presses the recording material toward an outer circumferential surface of the fixing member. The heating member generates heat to heat the recording material. A surface hardness of the inner circumferential surface of the fixing member is smaller than a surface hardness of the sliding surface of the sliding member.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 27, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Nakamura, Takashi Tanaka
  • Patent number: 10990046
    Abstract: A fixing device includes a fixing belt, a pressure member, and a heating section. The heating section faces an inner circumferential surface of the fixing belt. The heating section includes a heater and a heater holding member. The heater heats the fixing belt. The heater holding member holds the heater. The heater holding member has a first side surface, a second side surface, and an inclined slit. The first and second side surfaces are in contact with the inner circumferential surface. The first side surface has the inclined slit. The inclined slit is located in the first side surface in a direction of a rotational axis of the fixing belt. The inclined slit has one end on a side of the pressure member and the other end on an opposite side to the side of the pressure member. The other end is located nearer a middle (center) of the first side surface in the direction of the rotational axis than the one end.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: April 27, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Tomohiro Watatani, Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai, Fumito Nakamoto
  • Patent number: 10974484
    Abstract: A forming method of a cylindrical composite material includes layering a plurality of composite material sheets in a cylindrical shape with splices formed between ends of adjacent composite material sheets such that phases of the splices in a circumferential direction differ from each other; heating the composite material sheets layered at the layering while pressurizing the composite material sheets in a state where the layered composite material sheets are disposed along an inner surface of a composite material cylindrical mold to cause a resin included in the composite material sheets to react to combine the composite material sheets to be formed in a cylindrical shape; and performing an adhesion pretreatment that is performed before the heating and allows the inner surface of the composite material cylindrical mold to adhere to an outermost composite material sheet of the layered composite material sheets.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: April 13, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kodai Shimono, Ryoji Okabe
  • Patent number: 10969720
    Abstract: A heating device includes a surface heater unit that generates heat along a surface extending in a longitudinal direction to heat a heating object; a heat pipe disposed to be in contact with a surface of the surface heater unit over a region extending in the longitudinal direction at a side opposite to a side adjacent to the heating object; a friction reducing material provided to a region in which the surface heater unit and the heating object are in contact with each other, the friction reducing material reducing a frictional resistance between the surface heater unit and the heating object; and a heat-conductive material interposed between the surface heater unit and the heat pipe and having a surface tension that differs from a surface tension of the friction reducing material by 3 (mN/m) or more.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: April 6, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kiyoshi Koyanagi, Toko Hara, Kazuyoshi Itoh, Sou Morizaki, Motoharu Nakao, Toshiyuki Miyata, Toru Inoue
  • Patent number: 10969717
    Abstract: A heating device includes an endless rotator that rotates in a rotation direction and a heater that contacts an inner circumferential surface of the endless rotator and extends in an axial direction of the endless rotator. An elastic body contacts the inner circumferential surface of the endless rotator and is disposed downstream from the heater in the rotation direction of the endless rotator. A holder holds the heater and the elastic body. A pressure rotator is disposed opposite the heater and the elastic body via the endless rotator to form a nip between the endless rotator and the pressure rotator. A motion restrictor is mounted on the holder. The motion restrictor restricts motion of the heater downstream in the rotation direction of the endless rotator.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: April 6, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomoya Adachi, Yuusuke Furuichi, Yukimichi Someya, Takayuki Seki
  • Patent number: 10962908
    Abstract: A heating device includes a first rotator, a heater, a second rotator to contact an outer surface of the first rotator, a nip formation pad inside a loop of the first rotator to form a nip, a thermal equalizer to cover a surface of the nip formation pad opposite the first rotator and transport heat in an axial direction of the first rotator, and a lubricant disposed between the thermal equalizer and the first rotator. The thermal equalizer has a plurality of concave portions on a surface opposite the inner surface of the first rotator. The concave portion has a shape substantially symmetrical with respect to a first center line extending in a longitudinal direction of the thermal equalizer and a second center line in a cross section of the concave portion viewed from a direction perpendicular to a direction of movement of the first rotator.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: March 30, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiki Yamaguchi, Ippei Fujimoto
  • Patent number: 10955771
    Abstract: A belt control device includes a plurality of rollers, a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers, a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers, and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to a surface of the belt to control movement of the belt in the axial direction. The belt, the belt contact member, and the shaft displacement member are configured to make a frictional force between an edge of the belt and the belt contact member greater than a frictional force between the belt contact member and the shaft displacement member.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: March 23, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naohiro Kumagai, Masanari Fujita, Katsuya Kawagoe, Masaharu Furuya, Hiroki Nakamatsu, Yoshiki Hozumi