Patents by Inventor Tomohiro Kondo

Tomohiro Kondo 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: 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: 8901222
    Abstract: The polyphenylene ether according to the present invention includes 5 to 20% by mass of a component having a molecular weight of 50,000 or more and 12 to 30% by mass of a component having a molecular weight of 8,000 or less. The resin composition according to the present invention includes the polyphenylene ether (a) and a hydrogenated block copolymer (b) prepared by hydrogenating a block copolymer including at least two polymer blocks A having a vinyl aromatic compound and at least one polymer block B having a conjugated diene compound, wherein the number average molecular weight (Mnb) of the hydrogenated block copolymer is 100,000 or less, and the number average molecular weight (MnbA) of at least one polymer block of the polymer blocks A is 8,000 or more.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: December 2, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Shunichiro I, Yoshikuni Akiyama, Hiroshi Kamo, Yoshifumi Araki, Toru Yamaguchi, Tomohiro Kondo
  • 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: 8865811
    Abstract: The polyphenylene ether according to the present invention includes 5 to 20% by mass of a component having a molecular weight of 50,000 or more and 12 to 30% by mass of a component having a molecular weight of 8,000 or less. The resin composition according to the present invention includes the polyphenylene ether (a) and a hydrogenated block copolymer (b) prepared by hydrogenating a block copolymer including at least two polymer blocks A having a vinyl aromatic compound and at least one polymer block B having a conjugated diene compound, wherein the number average molecular weight (Mnb) of the hydrogenated block copolymer is 100,000 or less, and the number average molecular weight (MnbA) of at least one polymer block of the polymer blocks A is 8,000 or more.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: October 21, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Shunichiro I, Yoshikuni Akiyama, Hiroshi Kamo, Yoshifumi Araki, Toru Yamaguchi, Tomohiro Kondo
  • Publication number: 20140294459
    Abstract: A fixing device includes a heater, a first endless belt, a first back up member, and a second back up member. The first endless belt provides a nip region upon contacting with the heater, and is movable in a first direction. The first back up member provides a first position where the first back up member nips the first endless belt in cooperation with the heater. The first endless belt and the heater provide a first contact pressure at the first position. The second back up member is positioned downstream of the first back up member in the first direction, and provides a second position where the second back up member nips the first endless belt in cooperation with the heater. The first endless belt and the heater provide a second contact pressure at the second position; the first contact pressure is higher than the second contact pressure.
    Type: Application
    Filed: February 4, 2014
    Publication date: October 2, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tomohiro Kondo
  • Publication number: 20140294460
    Abstract: The present invention provides a fixing device that includes a heater, a first endless belt, a first roller, and a second roller. The first endless belt confronts the heater at a confronting part and providing a nip region upon contacting the heater. The first endless belt is movable in a first direction at the confronting part, and has an inner peripheral surface. The first roller supports the inner peripheral surface, and nips the first endless belt in cooperation with the heater. The nip region has a part facing the first roller. The second roller is disposed downstream of the nip region in the first direction and supports the inner peripheral surface. The second roller is positioned such that a part of the endless belt mounted over the second roller is out of contact from the heater.
    Type: Application
    Filed: February 4, 2014
    Publication date: October 2, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tomohiro Kondo
  • 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: 20140212189
    Abstract: There is provided a fixing device that may include: an endless belt having an inner peripheral surface defining an internal space and configured to circularly move about a first axis extending in an axial direction; a heater and a nip plate extending through the internal space; a rotary body; a restricting member and a biasing member. The rotary body and the nip member may nip the endless belt therebetween. The restricting member may restrict displacement of the endless belt in the axial direction, the restricting member having a restricting surface configured to oppose an axial end face of the endless belt in the axial direction. The biasing member may bias the restricting member toward the axial end face of the endless belt.
    Type: Application
    Filed: January 31, 2014
    Publication date: July 31, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tomohiro Kondo
  • Patent number: 8755725
    Abstract: A fixing device includes a tubular flexible fusing member, a heater, a nip member, a backup member, and a restricting member. The fusing member is rotatable about a rotational axis defining an axial direction and 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. The nip member is in sliding contact with the inner peripheral surface. The backup member nips the fusing member in cooperation with the nip member. The restricting member restricts displacement of the fusing member in the axial direction and is tiltable about a fulcrum portion.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 17, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tomohiro Kondo, Hisashi Tsukawaki
  • Publication number: 20140153979
    Abstract: There is provided a fixing device for thermally fixing a developing agent image to a sheet. The fixing device includes a tubular flexible member, a heater, a nip member, a reflection plate, a backup member, a stay and a temperature sensor. The flexible member has an inner peripheral surface defining an internal space. The heater is disposed in the internal space and is configured to generate a radiant heat. The nip member is disposed in the internal space, the inner peripheral surface being in sliding contact with the nip member. The reflection plate is configured to reflect the radiant heat from the heater toward the nip member, the reflection plate having an outer profile. The backup member is configured to provide a nip region in cooperation with the nip member for nipping the flexible member between the backup member and the nip member.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yoshihiro Miyauchi, Yasushi Fujiwara, Noboru Suzuki, Kei Ishida, Tomohiro Kondo
  • Patent number: 8737893
    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: Grant
    Filed: December 28, 2010
    Date of Patent: May 27, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yasushi Fujiwara, Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8737898
    Abstract: There is provided a fixing device for thermally fixing a developing agent image to a sheet. The fixing device includes a tubular flexible member, a heater, a nip member, a reflection plate, a backup member, a stay and a temperature sensor. The flexible member has an inner peripheral surface defining an internal space. The heater is disposed in the internal space and is configured to generate a radiant heat. The nip member is disposed in the internal space, the inner peripheral surface being in sliding contact with the nip member. The reflection plate is configured to reflect the radiant heat from the heater toward the nip member, the reflection plate having an outer profile. The backup member is configured to provide a nip region in cooperation with the nip member for nipping the flexible member between the backup member and the nip member.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: May 27, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Miyauchi, Yasushi Fujiwara, Noboru Suzuki, Kei Ishida, Tomohiro Kondo
  • Patent number: 8731450
    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: Grant
    Filed: October 29, 2010
    Date of Patent: May 20, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kei Ishida, Noboru Suzuki, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8637631
    Abstract: A polyphenylene ether which has a content of a metal magnetic material of 0.001 ppm or higher and lower than 1.000 ppm.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 28, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Tomohiro Kondo, Akinobu Nagai, Akira Mitsui
  • Patent number: 8611802
    Abstract: A fixing device for fixing a developing agent image to a sheet includes a tubular flexible member, a nip member, a backup member and a restricting member. The tubular flexible member has an inner peripheral surface defining an internal space having the nip member disposed therein and an outer peripheral surface opposite the inner peripheral surface, the tubular flexible member defining an axis extending in an axial direction. The backup member is configured to provide a nip region in cooperation with the nip member for nipping the tubular flexible member between the backup member and the nip member. The restricting member is configured to restrict the tubular flexible member from moving in the axial direction, the restricting member having a base section, and inner and outer guides protruding inward from the base section in the axial direction for guiding the inner peripheral surface and the outer peripheral surface, respectively.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: December 17, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8559862
    Abstract: An image forming device includes: a heater; a nip member; a stay; fusing member; a pair of frame members; a backup member; and a ventilator. The nip member receives radiant heat from the heater. The stay has an inner surface confronting the heater and an outer surface opposing the inner surface. The fusing member surrounds the heater, the nip member and the stay. The pair of frame members is disposed at end portions of the fusing member. One frame members is formed with an inlet opening. The remaining frame member is formed with an outlet opening. The inlet and outlet openings are in fluid communication with a space between an inner peripheral surface of the fusing member and the outer surface. The backup member provides a nip region upon nipping the fusing member between the backup and nip members. The ventilator allows air to flow in the space.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: October 15, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tomohiro Kondo, Kei Ishida, Noboru Suzuki, Yoshihiro Miyauchi, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8557899
    Abstract: A reinforced flame retardant resin composition including 20 to 87% by mass of an (A) thermoplastic resin, 3 to 20% by mass of a (B) aromatic phosphoric acid ester-based flame retardant agent, 5 to 40% by mass of (C) mica powder, and 0.5 to 30% by mass of (D) hydrous mineral powder having a dehydration starting temperature for crystallization water in a range of 400 to 600° C.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 15, 2013
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Toru Yamaguchi, Tomohiro Kondo
  • Publication number: 20130245182
    Abstract: An object of the present invention is to provide a polyphenylene ether powder that has a high loose apparent specific gravity and good handleability, as well as a high solvent solubility, and good covering properties by coating, applying and the like, and further, when formed as a covering film, providing the covering film with excellent mechanical properties. The polyphenylene ether powder according to the present invention has a loose apparent specific gravity of 0.40 or more and 0.85 or less, and includes 5 to 20 mass % of a component having a molecular weight of 50,000 or more and 12 to 30 mass % of a component having a molecular weight of 8,000 or less.
    Type: Application
    Filed: October 12, 2011
    Publication date: September 19, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventor: Tomohiro Kondo
  • Patent number: 8532552
    Abstract: A fixing device includes a heating element disposed inside a flexible fusing member, a nip member disposed to contact with a surface of the flexible fusing member and to allow the flexible fusing member to slide along the nip member, a reflecting plate for reflecting radiant heat from the heating element toward the nip member, and a backup member for nipping the flexible fusing member with the nip member. The reflecting plate includes a central reflecting portion extending along a longitudinal direction of the heating element at least in a region corresponding to along a heat generating portion of the heating element, and end reflecting portions stationarily provided on both ends of the central reflecting portion. The end reflecting portions are disposed in positions longitudinally outward of the heat generating portion and each has a reflecting surface tilted with respect to the longitudinal direction of the heating element.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: September 10, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kei Ishida, Noboru Suzuki, Takuji Matsuno, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Publication number: 20130231430
    Abstract: The polyphenylene ether according to the present invention includes 5 to 20% by mass of a component having a molecular weight of 50,000 or more and 12 to 30% by mass of a component having a molecular weight of 8,000 or less. The resin composition according to the present invention includes the polyphenylene ether (a) and a hydrogenated block copolymer (b) prepared by hydrogenating a block copolymer including at least two polymer blocks A having a vinyl aromatic compound and at least one polymer block B having a conjugated diene compound, wherein the number average molecular weight (Mnb) of the hydrogenated block copolymer is 100,000 or less, and the number average molecular weight (MnbA) of at least one polymer block of the polymer blocks A is 8,000 or more.
    Type: Application
    Filed: October 13, 2010
    Publication date: September 5, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Shunichiro I, Yoshikuni Akiyama, Hiroshi Kamo, Yoshifumi Araki, Toru Yamaguchi, Tomohiro Kondo