Patents by Inventor Noboru Suzuki

Noboru Suzuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8971775
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet includes: a flexible tubular member having an inner peripheral surface defining an internal space; a heater; a nip member being in sliding contact with the inner peripheral surface of the flexible tubular member and having an electrically conductive surface; a stay supporting the nip member and being electrically conductive and electrically connected to the electrically conductive surface; a backup member nipping the flexible tubular member in cooperation with the nip member; a supporting member supporting the nip member and the stay, the supporting member being movable relative to the backup member; and a first grounding member disposed to be in contact with the stay for grounding the stay, the first grounding member being supported to the supporting member such that the first grounding member is integrally movable with the supporting member.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: March 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Yoshihiro Miyauchi
  • Patent number: 8971778
    Abstract: A fixing device includes: a first fixing member and a second fixing member forming a nip portion for heat-fixing a recording sheet; an urging mechanism including an urging member and urging the first fixing member toward the second fixing member by an urging force of the urging member; a first frame for supporting the second fixing member; a second frame arranged at an opposite side to the second fixing member with the first fixing member being interposed therebetween; and a switching member, which applies a pressing force resisting the urging force to the first fixing member for switching a width of the nip portion, and which includes a cam to which the urging force is applied and a shaft for supporting the cam. The first frame and the second frame are connected to each other by the shaft.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: March 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Yoshihiro Miyauchi
  • Patent number: 8971776
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet includes: a flexible tubular member having an inner peripheral surface and circularly moving in a moving direction while the developing agent image is thermally fixed; a heater; a nip member being in sliding contact with the tubular member; a backup member nipping the tubular member in cooperation with the nip member; a stay covering the heater and supporting the nip member; an electric component positioned opposite to the heater with respect to the stay; and a frame supporting the electric component. The frame includes: an isolating portion interposed between the tubular member and the electric component for isolating the electric component from the tubular member; and a guide portion guiding the inner peripheral surface of the tubular member while the flexible tubular member is moving in the moving direction.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: March 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Yoshihiro Miyauchi
  • Patent number: 8948671
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet includes: a flexible tubular member defining an axis extending in an axial direction; a heater; a nip plate configured to be in sliding contact with the tubular member and having an engaging portion; a backup member configured to nip the flexible tubular member in cooperation with the nip plate; and a stay configured to support the nip plate and having an end portion in the axial direction. The stay includes: a support portion configured to support the nip plate; a plurality of hook portions provided at the end portion to support the nip plate; and a protruding portion protruding toward the backup member and configured to engage the engaging portion such that the nip plate is restricted from moving in a direction orthogonal to a direction in which the backup member confronts the nip plate.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: February 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Noboru Suzuki
  • Patent number: 8942610
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet includes a tubular member, a nip plate, a heater, a reflection plate, and a backup member. The tubular member has an inner peripheral surface defining an internal space and an axis defining an axial direction. The nip plate is disposed in the internal space, and the inner peripheral surface is in sliding contact with the nip plate. A heater is disposed in the internal space and confronts the nip plate in a confronting direction. The reflection plate is configured to reflect radiant heat from the heater toward the nip plate. A backup member is configured to provide a nip region in cooperation with the nip plate for nipping the fusing member between the backup member and the nip plate.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 27, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8938193
    Abstract: A fuser unit includes: a cylindrical member; a heat generation member; a nip plate; a backup member that forms a nip portion; and a temperature detection member that detects a temperature of the nip plate. The nip plate has: a plate-shaped part that forms the nip portion; a lubricant restraint part that is formed on at least a part of a downstream side end of the plate-shaped part in a predetermined direction and that extends toward an inner side in a diametrical direction of the cylindrical member, and a detected part that extends from an end of the lubricant restraint part toward the predetermined direction. The detected part is formed to be shorter than the plate-shaped part in an axial direction of the cylindrical member, and both ends of the detected part in the axial direction are adjacent to a space.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: January 20, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Kaoru Suzuki, Kotaro Haruta
  • Patent number: 8934804
    Abstract: A fuser unit, which heat-fixes a developer image on a recording sheet, the fuser unit including: a cylindrical member having flexibility; a heat generation member; a nip member; a stay; a first frame; a second frame, and a wiring, wherein the first frame is provided with a pair of openings through which both axial end sides of the stay are exposed, wherein the second frame is configured to cover a central portion of the wiring, which is positioned at an inward side more than the pair of openings in the axial direction, wherein both axial sides of the second frame are provided with pressing protrusions that directly press the stay through the openings, and wherein both axial sides of the second frame are provided with third frames that cover a part of the wiring arranged at both axial end sides of the first frame.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: January 13, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Tomohiro Kondo, Hisashi Tsukawaki, Seiji Hiramatsu
  • Patent number: 8929790
    Abstract: A fuser unit, which heat-fixes a developer image transferred on a recording sheet, the fuser unit includes: a cylindrical member having flexibility; a heat generation member that is arranged at an inside of the cylindrical member and generates radiation heat; a nip member that slidingly contacts an inner periphery of the cylindrical member; a first reflection member that extends along the heat generation member to corresponds with at least a range of a heat generation part of the heat generation member; a second reflection member that is arranged, at an outside of the heat generation member, to at least one of end sides of the first reflection member in the longitudinal direction, and a backup member that forms a nip region by nipping the cylindrical member between the nip member and the backup member, wherein the second reflection member is separated from the first reflection member.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: January 6, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Hisashi Tsukawaki, Seiji Hiramatsu
  • Patent number: 8918040
    Abstract: A fuser unit includes: a cylindrical member having flexibility; a heat generator, which is arranged at the inside of the cylindrical member; a plate-shaped nip member, which is arranged to slidingly contact an inner peripheral surface of the cylindrical member and receives radiation heat from the heat generator; a backup member, which is configured to configure a nip part between the cylindrical member and the backup member with the cylindrical member, by nipping between the backup member and the nip member; a temperature detection unit, which is arranged to face an opposite surface that is opposite to the surface of the nip member slidingly contacting the cylindrical member at the inside of the cylindrical member and detects a temperature of the nip member, and an urging member that urges the temperature detection unit toward the nip member.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: December 23, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kei Ishida, Noboru Suzuki, Takuji Matsuno, Yoshihiro Miyauchi
  • Patent number: 8909115
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet includes: a flexible tubular member having an inner peripheral surface, the tubular member defining an axis extending in an axial direction and having widthwise end portions in the axial direction; a heater; a nip member being in sliding contact with the inner peripheral surface; a backup member confronting the nip member to nip the tubular member in cooperation with the nip member; a stay supporting the nip member; a pair of inner guides being in sliding contact with the inner peripheral surface to guide the same; and a pair of restricting members restricting the widthwise end portions of the tubular member from moving in the axial direction, at least one of the pair of restricting members being formed separately from the inner guides and being assembled to the stay in a direction perpendicular to the axial direction.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: December 9, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Yoshihiro Miyauchi
  • Publication number: 20140341628
    Abstract: A fixing device includes a tubular fusing film, a heater, a nip member, a backup member, a backup member, first supporting member, and a second supporting member. The heater may be disposed inside the tubular shape of the fusing film. The nip member may be disposed so as to be in sliding contact with the inner surface of the fusing film and heated by the heater. The backup member may form a nip portion between the backup member and the fusing film with the fusing film between the backup member and the nip member. The first supporting member may be configured to integrally support the heater and the nip member. The second supporting member may be configured to movably support the first supporting member so that the nip member moves relative to the backup member.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 20, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yasushi Fujiwara, Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo
  • Patent number: 8892018
    Abstract: A fixing device includes a heat roller and a heater. The heat roller extends in an axial direction and includes a cylindrical-shaped roller section and a coil, the roller section having an inner peripheral surface defining an internal space therewithin and the coil being wound along the inner peripheral surface, the heat roller being configured of a plurality of zones in the axial direction, the plurality of zones including a low zone whose heat capacity is less than a predetermined value and a high zone whose heat capacity is not less than the predetermined value. The heater is disposed within the internal space of the roller section and has a heating wire configured to generate heat, the heating wire having at least a first portion which is in confrontation with the high zone and a second portion which is in confrontation with the low zone, and the heating wire being configured such that the first portion has an amount of heat generation greater than an amount of heat generation at the second portion.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: November 18, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Noboru Suzuki
  • Patent number: 8892016
    Abstract: A fixing device which may include a nip plate which has roll marks formed on at least a first surface of the nip plate, a flexible cylindrical member having an inner peripheral surface that is configured to slide on the nip plate and a pressure member that is configured to rotate while the pressure member and the nip plate pinch the flexible cylindrical member, so that the pressure member and the cylindrical member convey a recording sheet. Further, a lubricant may be provided between the nip plate and the flexible cylindrical member. Also, the nip plate may be arranged so that the roll marks extend along a conveying direction of the recording sheet.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: November 18, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Yoshihiro Miyauchi
  • Patent number: 8886100
    Abstract: A fuser unit, which heat-fixes a developer image transferred on a recording sheet while moving the recording sheet in a predetermined direction, the fuser unit comprising: a cylindrical member having flexibility; a heat generation member that is arranged at an inside of the cylindrical member and generates radiation heat; a nip member that slidingly contacts an inner periphery of the cylindrical member; a reflection plate that contacts the nip member, is configured to cover the heat generation member and reflects the radiation heat toward the nip member, and a backup member that forms a nip region by nipping the cylindrical member between the nip member and the backup member, wherein the nip member and the reflection plate intermittently contact each other in an axial direction of the cylindrical member within an image forming width.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: November 11, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Kaoru Suzuki
  • Patent number: 8879973
    Abstract: A fixing device includes: a tubular member; a heater; a nip member; a stay; and a backup member. The heater including: a glass tube; and a heat source. The nip member confronts the heater in a confronting direction. The glass tube has an axis defining an axial direction. The glass tube includes a glass tube body having end portions in the axial direction and sealed portions formed integrally with the end portions. Each sealed portion is formed in a plate shape and protrudes radially outwardly from the glass tube body when viewing in the axial direction. Each sealed portion is oriented in a first direction and defines a cross-sectional distance between one end portion and another end portion of the sealed portion in the confronting direction greater than a cross-sectional length of the glass tube in a second direction perpendicular to the confronting direction and the axial direction.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: November 4, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kei Ishida, Noboru Suzuki, Takuji Matsuno, Yoshihiro Miyauchi
  • Publication number: 20140286685
    Abstract: A fixing device includes: a tubular member; a heater; a nip member including a base portion, a connecting portion, and a flange portion; a backup member; and a guide member. The tubular member is circularly movable in a circularly-moving direction. The guide member has a part positioned upstream of the nip member in the circularly-moving direction and configured to guide the tubular member. The part has an end portion containing a most downstream end at which the tubular member is directed to a position between the nip member and the backup member. The nip member and the guide member define a first imaginary plane containing a line connecting a first curved portion provided by a boundary region between the connecting portion and the base portion, and the most downstream end. The first imaginary plane is positioned opposite to the heater relative to a first end of the flange portion.
    Type: Application
    Filed: June 9, 2014
    Publication date: September 25, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kei Ishida, Noboru Suzuki, Takuji Matsuno, Yoshihiro Miyauchi
  • Publication number: 20140255066
    Abstract: A fixing device includes a tubular flexible metallic fusing member, a heater, a nip member, and a backup member. The fusing member has an inner peripheral surface defining an internal space. The heater is disposed in the internal space. The nip member is disposed in the internal space for receiving radiant heat from the heater and has a contact surface in sliding contact with the inner peripheral surface. At least the contact surface is provided with a protection layer having a hardness higher than that of the inner peripheral surface. The backup member nips the fusing member in cooperation with the nip member.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Noboru Suzuki
  • Publication number: 20140248073
    Abstract: In a fixing device for thermally fixing a developer image transferred onto a recording sheet, a nip plate is disposed on an inner surface of a tubular flexible fusing member which is flexibly deformable in such a manner that permits the fusing member to slide along the nip plate, and configured to be heated by a heating element disposed inside the fusing member. The fusing member is nipped between the nip plate and a backup member to form a nip portion between the fusing member and the backup member. The nip plate is bent to form a recessed portion which opens on the inner surface of the fusing member and holds a lubricant.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 4, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yasushi Fujiwara, Kei Ishida, Noboru Suzuki, Yoshihiro Miyauchi, Tomohiro Kondo
  • Publication number: 20140241746
    Abstract: An image forming apparatus includes a fixing device, a motor, and a control device. The fixing device includes a heating member, a drive roller in contact with the heating member at a nip portion therebetween, and a memory configured to store an outer diameter of the drive roller. The motor is configured to drive the drive roller. The control device is configured to read the outer diameter from the memory, adjust a rotation speed of the motor such that the rotation speed of the motor becomes smaller as the outer diameter read from the memory becomes larger, and drive the motor at an adjusted rotation speed.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Masahito Kajita, Noboru Suzuki
  • Publication number: 20140233982
    Abstract: An image forming apparatus is provided. The image forming apparatus includes a chassis having a first opening on a first side, photosensitive members, an intermediate transfer belt arranged to have a surface thereof facing the photosensitive members, primary-transfer members, a secondary-transfer roller, a first feed roller, a cleaner device, a waste toner container, which is removably installed in the chassis through the first opening and settled in a position opposite from the photosensitive members across the intermediate transfer belt, a connector, a first feeding path extending in a range between the first feed roller and the secondary-transfer roller, and a second feeding path being formed in clearance between the intermediate transfer belt and the waste toner container to convey a recording sheet being inserted through a sheet inlet and merging into the first feeding path in the vicinity of the first feed roller.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirotaka Mori, Hiroshi Nakano, Noboru Suzuki, Shougo Sato