Patents by Inventor Tomonori Watanabe

Tomonori Watanabe 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: 11635716
    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: February 28, 2022
    Date of Patent: April 25, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroshi Handa, Tomonori Watanabe, Shuhei Fukue, Kenji Takeuchi, Kazuna Taguchi, Tatsuo Ogasawara
  • Patent number: 11624993
    Abstract: In a fixing device, a first fixing member and a second fixing member are configured to form a nip in combination, and an arm biased by a first spring with a first biasing force provides a nip pressure. A cam rotatably arranged to cause the arm to move against the first biasing force has a first cam surface used to change the nip pressure from a first pressure to a second pressure smaller than the first pressure, and a second cam surface of which an angle of action is greater than that of the first cam surface to change the nip pressure from the second pressure to a third pressure smaller than the second pressure. A maximum pressure angle at the second cam surface is smaller than a maximum pressure angle at the first cam surface.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: April 11, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tomonori Watanabe
  • Patent number: 11614702
    Abstract: In a fixing device, an endless belt is nipped between a roller and a nip-forming member, and a sheet is conveyed through a first nip region formed between the endless belt and the roller by the nip-forming member. A pair of conveyor rollers located downstream of the first nip region in a sheet conveyance direction are configured to convey the sheet through a second nip region formed therebetween. A sheet guide located between the roller and the pair of conveyor rollers includes a first guide which in a plane perpendicular to a rotation axis of the roller, intersects with a line tangent to an outer cylindrical surface of the roller at a downstream end of the first nip region, while an extension line of the first guide intersects with a line segment connecting the downstream end of the first nip region to an upstream end of the second nip region.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: March 28, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shuhei Fukue, Tatsuo Ogasawara, Tokifumi Tanaka, Tomonori Watanabe
  • Publication number: 20230058252
    Abstract: A lid device includes: a lid; a lid switch that detects displacement of the lid to each of an open position for opening an opening, a closed position for closing the opening, a push start position located further in the closing direction than the closed position, and a pushed-in position located further in the closing direction than the push start position; and a control device that determines a lid switch status based on a detection result of the lid switch and controls an indicator to display the lid switch status. The control device determines that the lid switch status is in an open state when the lid switch detects displacement of the lid to the open position or the push start position and determines that the lid switch status is in a closed state when the lid switch detects displacement of the lid to the closed position or pushed-in position.
    Type: Application
    Filed: August 18, 2022
    Publication date: February 23, 2023
    Inventor: Tomonori WATANABE
  • Patent number: 11584364
    Abstract: A vehicle control device comprising: a control unit configured to control an automated parking mode based on a shift position of a transmission when an automated parking is instructed, wherein the automated parking mode includes a first automated parking mode in which steering is not executed and forward movement or rearward movement is possible and a second automated parking mode in which a parking space is detected and steering is executed automatically, and the control unit controls the automated parking mode to be in the first automated parking mode, in a case where the shift position is a first position, and selectively controls the automated parking mode to be in the first automated parking mode or the second automated parking mode, in a case where the shift position is a second position that differs from the first position.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: February 21, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Gaku Shimamoto, Junpei Noguchi, Tomonori Watanabe
  • Patent number: 11579543
    Abstract: A developer cartridge may include: a first gear having a small-diameter gear portion and a large-diameter gear portion; and a second gear including: a first columnar portion centered on a second axis; a second columnar portion having a smaller diameter than the first columnar portion; a first engagement portion extending along a portion of a peripheral surface of the first columnar portion and engageable with the small-diameter gear portion; a second engagement portion extending along a portion of a peripheral surface of the second columnar portion and positioned closer to a housing than the first engagement portion in an axial direction and engageable with the large-diameter gear portion; and a protruding portion protruding in the axial direction and rotatable together with the first engagement portion and the second engagement portion. The second engagement portion may engage the large-diameter gear portion after the first engagement portion engages the small-diameter gear portion.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: February 14, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Keita Shimizu, Takashi Shimizu, Hideshi Nishiyama, Naoya Kamimura, Tomonori Watanabe
  • Publication number: 20230044689
    Abstract: A terminal block attachable to a control device includes a main body including a wiring connection part to which wiring is connected, a first rotation mechanism unit arranged at a first end in a first direction of the main body, and a second rotation mechanism unit arranged at a second end in the first direction of the main body. The first rotation mechanism unit and the second rotation mechanism unit are configured that the main body is rotatable about an imaginary straight line extending along the first direction with respect to the control device. The wiring connection part is arranged at an end of the main body in a radial direction with respect to the imaginary straight line.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 9, 2023
    Inventors: Tomonori WATANABE, Kohei TANINO, Masahiko KUBO, Masaaki NAGANO
  • Publication number: 20230010478
    Abstract: A power device includes a plurality of terminal blocks electrically connected to each other. Each of the plurality of terminal blocks is configured to be connectable to an external device and to be capable of supplying current to the connected external device. Each of the plurality of terminal blocks includes a current supply circuit that supplies current to the connected external device, and a current setting unit that sets a maximum current to be supplied to the external device via the current supply circuit.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 12, 2023
    Inventors: Masaaki NAGANO, Kohei TANINO, Tomonori WATANABE
  • Patent number: 11550248
    Abstract: An image forming apparatus includes a fixing device including a heating roller configured to heat a sheet when the heating roller rotates, a temperature sensor configured to detect a temperature of the heating roller; and a controller configured to obtain a temperature detected by the temperature sensor at intervals of a predetermined sampling time, calculate, at the intervals of the predetermined sampling time, a temperature-decrease-amount of the detected temperature over a unit time that is longer than the predetermined sampling time, and stop rotation of the heating roller when the calculated temperature-decrease-amount is greater than a predetermined threshold value.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 10, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shunsuke Ueki, Tomonori Watanabe, Mingguang Zhang, Yusuke Mizuno, Shintaro Sakaguchi
  • Publication number: 20220407247
    Abstract: A terminal protection voltage detector circuit is provided for protecting a terminal block having output terminals in a power supply apparatus. A current detector detects output currents flowing from the power supply apparatus to loads via output terminals, and a first comparator configured to compare a sum of the detected output currents with a predetermined first threshold and output a first comparison result signal when the sum of output currents is larger than or equal to the first threshold. A second comparator configured to compare a maximum value of detected output currents with a predetermined second threshold and output a second comparison result signal when the maximum value is equal to or larger than the second threshold. A current stop circuit stops a current from flowing from the power supply apparatus to the output terminals based on the first or second comparison result signal.
    Type: Application
    Filed: June 7, 2022
    Publication date: December 22, 2022
    Inventors: Masaaki NAGANO, Tomonori WATANABE, Kohei TANINO
  • Patent number: 11507002
    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 first motor drives the roller. 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 starts driving the first motor to drive the roller in a case where a print command is received in a state that the nip pressure is the second nip pressure. The controller modifies the nip pressure from the second nip pressure to the first nip pressure after the driving is performed and fixes the developer image on the sheet in a state that the nip pressure is the first nip pressure.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: November 22, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Fumitake Tajiri, Yusuke Mizuno, Tokifumi Tanaka, Tomonori Watanabe, Sadaharu Kato, Hirotaka Imaeda
  • Publication number: 20220348490
    Abstract: Provided is a heat reflective member, which is prevented from braking even in a high-temperature environment. It generates no dust in use, and can be washed with a chemical liquid. The heat reflective member has a laminated structure in which quartz glass layers are formed on an upper surface and a lower surface of a siliceous sintered powder layer. The heat reflective member includes: an impermeable layer which is formed at a portion of the siliceous sintered powder layer at an end portion of the heat reflective member, which has a thickness at least larger than half of a thickness of the siliceous sintered powder layer, and through which a gas or a liquid is prevented from penetrating; and a buffer layer which is formed between the impermeable layer and the siliceous sintered powder layer, and which changes in density from the impermeable layer toward the sintered powder layer.
    Type: Application
    Filed: September 18, 2020
    Publication date: November 3, 2022
    Applicants: SHIN-ETSU QUARTZ PRODUCTS CO., LTD., YAMAGATA SHIN-ETSU QUARTZ CO., LTD., HERAEUS QUARZGLAS GMBH & CO. KG
    Inventors: Kazuhiro YAMAGUCHI, Daiki FUJITA, Yoshihiro HARADA, Toru SEGAWA, Tomonori WATANABE
  • Publication number: 20220324740
    Abstract: One aspect is a reflective member, which has a laminated structure in which transparent quartz glass members are formed on an upper surface and a lower surface of an opaque siliceous sintered powder layer. The opaque siliceous sintered powder layer has a thickness of 0.1 mm or more and a thickness distribution of ±0.05 mm or less. When a load is applied to each of the transparent quartz glass members on an upper surface and a lower surface of the laminated structure in a direction parallel to the laminated structure, the reflective member is fractured at a load of 5 N or more per square centimeter. The laminated structure includes a semi-transparent portion having a width of 0.01 mm or less, which has an intermediate opacity between an opacity of the opaque siliceous sintered powder layer and an opacity of each of the transparent quartz glass members.
    Type: Application
    Filed: August 17, 2020
    Publication date: October 13, 2022
    Applicants: SHIN-ETSU QUARTZ PRODUCTS CO., LTD., YAMAGATA SHIN-ETSU QUARTZ CO., LTD., HERAEUS QUARZGLAS GMBH & CO. KG
    Inventors: Toru SEGAWA, Kazuhiro YAMAGUCHI, Tomonori WATANABE, Daiki FUJITA
  • Patent number: 11429062
    Abstract: An image forming apparatus, having a photosensitive drum, a developing roller movable between a contacting position, in which the developing roller contacts the photosensitive drum, and a separated position, in which the developing roller is separated from the photosensitive drum, a moving mechanism to move the developing roller between the contacting position and the separated position, a fuser including a heating member and a pressing member to nip a sheet at a position between the heating member and the pressing member, a nipping-force adjuster to switch a nipping force in the fuser between a first nipping force and a second nipping force being greater than the first nipping force, a motor, and a driving-force transmitter to transmit a driving force from the motor to the developing roller, is provided. The driving-force transmitter transmits the driving force further to the moving mechanism and the nipping-force adjuster.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 30, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kotaro Haruta, Masahito Saeki, Shoichiro Nishimura, Tomonori Watanabe
  • Publication number: 20220269200
    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: Application
    Filed: February 28, 2022
    Publication date: August 25, 2022
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroshi HANDA, Tomonori WATANABE, Shuhei FUKUE, Kenji TAKEUCHI, Kazuna TAGUCHI, Tatsuo OGASAWARA
  • Patent number: 11392067
    Abstract: A device includes a rotator, a belt facing the rotator and having an outer peripheral surface which contacts the rotator to form a nip therebetween, a first pad configured to press the belt toward the rotator to form one part of the nip, a second pad configured to press the belt toward the rotator, to form another part of the nip, a holder holding the first pad and the second pad, a stay supporting the holder, and an urging member urging the stay toward the rotator in an urging direction. The second pad is located upstream of the first pad in a conveyance direction in the nip orthogonal to the urging direction. At least a portion of a contact area between the stay and the holder is located downstream of a center of the nip and upstream of a front edge of the first pad in the conveyance direction.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 19, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kazuna Taguchi, Tomonori Watanabe, Kenji Takeuchi, Hiroshi Handa, Mingguang Zhang, Shuhei Fukue, Hirotaka Imaeda
  • Publication number: 20220197195
    Abstract: An image forming apparatus includes a fixing device including a heating roller configured to heat a sheet when the heating roller rotates, a temperature sensor configured to detect a temperature of the heating roller; and a controller configured to obtain a temperature detected by the temperature sensor at intervals of a predetermined sampling time, calculate, at the intervals of the predetermined sampling time, a temperature-decrease-amount of the detected temperature over a unit time that is longer than the predetermined sampling time, and stop rotation of the heating roller when the calculated temperature-decrease-amount is greater than a predetermined threshold value.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shunsuke UEKI, Tomonori WATANABE, Mingguang ZHANG, Yusuke MIZUNO, Shintaro SAKAGUCHI
  • Publication number: 20220197197
    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: Application
    Filed: March 11, 2022
    Publication date: June 23, 2022
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yusuke MIZUNO, Fumitake TAJIRI, Tokifumi TANAKA, Tomonori WATANABE, Sadaharu KATO, Hirotaka IMAEDA
  • Patent number: 11353811
    Abstract: A fixing device includes a roller having a rotation axis, and a belt unit that conveys a sheet in combination with the roller. The belt unit includes an endless belt, a nip forming member that forms a nip in combination with the roller, and an upstream belt guide. The fixing device further includes a chute having a guide surface configured to guide the sheet toward the nip. In a section orthogonal to the rotation axis, a line segment connecting a downstream end of the guide surface and an upstream end of the nip does not intersect the upstream belt guide, and an extended line extended from the downstream end of the guide surface along the guide surface toward the roller intersects a surface of the roller at a position upstream of an upstream end of the nip.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: June 7, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirotaka Imaeda, Kenji Takeuchi, Tokifumi Tanaka, Tomonori Watanabe, Tatsuo Ogasawara
  • Patent number: 11327424
    Abstract: A fixing device includes: a rotary body; a pressure body; a frame supporting the rotary body; and a pressure varying mechanism for providing a nip pressure to a nip region formed between the rotary body and the pressure body. The pressure varying mechanism includes a first spring and a second spring for urging one of the rotary body and the pressure body. The first spring applies a first urging force, and the second spring applies a second urging force acting in an opposite direction from the first urging force. The pressure varying mechanism can vary the nip pressure between a first nip pressure and a second nip pressure smaller than the first nip pressure. The nip pressure becomes the first nip pressure while only the first urging force is applied, and becomes the second nip pressure while both of the first urging force and the second urging force are applied.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 10, 2022
    Inventors: Hiroshi Handa, Tokifumi Tanaka, Shuhei Fukue, Tomonori Watanabe