Patents by Inventor Tsuneo Fujiwara

Tsuneo Fujiwara 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: 10358995
    Abstract: An engine automatic stop/restart device includes an ignition-prohibition-decision unit that prohibits an ignition for an engine, which is controlled by the ignition-control unit, when a reverse rotation of the engine is detected based on a crank-angle signal; and an ignition-prohibition-release-decision unit that releases an ignition prohibition, after the ignition is prohibited by the ignition-prohibition-decision unit; in which the ignition-prohibition-release-decision unit releases the ignition prohibition when regular rotational signals of the engine, of which count is greater than or equal to a predetermined count, is detected and an engine revolution number is greater than or equal to a predetermined revolution number, after the reverse rotation of the engine is detected, and before a crank is positioned at a compression top dead center of the engine.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: July 23, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Michitaka Fujiwara, Tsuneo Tanabe
  • Patent number: 10325695
    Abstract: A rectangular wire having: a multilayer conductor member constructed by stacking, in a thickness direction, a rectangular metallic conductor that has a layer of a first thermoplastic resin formed on the outer periphery thereof, the first thermoplastic resin being a non-crystalline resin having no melting point or a crystalline resin having an amide bond; and a layer of a second thermoplastic resin having a melting point of 300° C. or more on the outer periphery of the multilayer conductor member.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 18, 2019
    Assignees: Furukawa Electric Co., Ltd., Furukawa Magnet Wire Co., Ltd.
    Inventors: Hideo Fukuda, Dai Fujiwara, Tsuneo Aoi, Hiroshi Kaneiwa, Takefumi Kaji
  • Patent number: 10319491
    Abstract: A rectangular wire having: a multilayer conductor member constructed by stacking, in a thickness direction, a rectangular metallic conductor that has a layer of a thermosetting resin formed on the outer periphery thereof, the thermosetting resin having a glass transition temperature of 100° C. or more and 200° C. or less and having a urethane bond; and a layer of a thermoplastic resin having a melting point of 300° C. or more on the outer periphery of the multilayer conductor member.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 11, 2019
    Assignees: Furukawa Electric Co., Ltd., Furukawa Magnet Wire Co., Ltd.
    Inventors: Hideo Fukuda, Dai Fujiwara, Tsuneo Aoi, Hiroshi Kaneiwa, Yuki Amano
  • Patent number: 8983350
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet fed in a sheet feeding direction includes a tubular flexible fusing member, a nip plate, a heater, a reflection plate, and a backup member. The tubular flexible fusing 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 a 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: March 17, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8983349
    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: March 17, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • 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: 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: 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
  • Publication number: 20130336692
    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: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Etsuko Fujiwara, Tsuneo Fujiwara
  • 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
  • Publication number: 20130302075
    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: July 11, 2013
    Publication date: November 14, 2013
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tsuneo Fujiwara, Etsuko Fujiwara
  • Publication number: 20130287459
    Abstract: A fixing device for thermally fixing an image to a sheet includes: a tubular flexible member; a nip member; a heater; a reflection member; a backup member; and a temperature sensor. The tubular flexible member has an inner peripheral surface defining an internal space. The nip member is disposed in the internal space and has a surface and an opposite surface. The heater is disposed in the internal space confronting the nip member. The reflection member is configured to reflect radiant heat from the heater toward the nip member. The backup member may provide a nip region with the nip member for nipping the tubular flexible member between the backup member and the nip member. The temperature sensor is disposed in the internal space and is configured to detect a temperature of the nip member. The temperature sensor is positioned outside of the reflection member and confronting the opposite surface.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Etsuko Fujiwara, Tsuneo 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: 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
  • Patent number: 8515325
    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: November 30, 2010
    Date of Patent: August 20, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Miyauchi, Noboru Suzuki, Kei Ishida, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8494424
    Abstract: A fixing device for thermally fixing a developing agent image to a sheet fed in a sheet feeding direction includes: a tubular flexible member; a nip member; a heater; a reflection member; a backup member; and a temperature sensor. The tubular flexible member has an inner peripheral surface defining an internal space. The nip member is disposed in the internal space and has one surface and opposite surface. The inner peripheral surface is in contact with the one surface. The heater is disposed in the internal space and confronts the nip member in a confronting direction. The reflection member is configured to reflect a radiant heat from the heater toward the nip member. 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 temperature sensor is disposed in the internal space and is configured to detect a temperature of the nip member.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kei Ishida, Noboru Suzuki, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8489007
    Abstract: In a fixing device, a nip plate is disposed on an inner surface of a tubular flexible fusing member which is flexibly deformable, 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. First and second portions of the nip plate which are located in positions upstream and downstream, respectively, with respect to a recording sheet conveyance direction and to be supported by a stay are each configured to be a flat plate extending along the recording sheet conveyance direction. A central portion between the first and second portions of the nip plate is in a position shifted from those of the first and second portions in a direction perpendicular to flat surfaces of the first and second portions.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 16, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Etsuko Fujiwara, Kei Ishida, Noboru Suzuki, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara
  • Patent number: 8472835
    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 and a backup member. The tubular flexible member has an inner peripheral surface defining an internal space. The heater is disposed within the internal space and is configured to generate a radiant heat. The nip member is disposed within the internal space and is configured to receive the radiant heat from the heater, the inner peripheral surface being in sliding contact with the nip member, and the nip member being electrically conductive and the tubular flexible member being grounded via the nip member. 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.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: June 25, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8452218
    Abstract: A fixing device includes a tubular fusing film, a heater, a nip member, a backup member, a 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 support the nip member. The second supporting member may be configured to support the heater and movably support the first supporting member so that the nip member moves relative to the backup member and the heater.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: May 28, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Suzuki, Kei Ishida, Yoshihiro Miyauchi, Tomohiro Kondo, Tsuneo Fujiwara, Etsuko Fujiwara
  • Patent number: 8412083
    Abstract: A fixing device for thermally fixing a developer image transferred onto a recording sheet, includes: a flexible fusing member which is flexibly deformable; a heating element; a nip member disposed in such a manner as 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 configured to reflect radiant heat from the heating element in a direction toward the nip member; a backup member configured to nip the flexible fusing member with the nip member to thereby form a nip portion for the recording sheet between the flexible fusing member and the backup member; and a stay configured to support both end portions of the nip member. The reflecting plate has at least one flange portion, and the flange portion is held and supported between the nip member and the stay.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 2, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kei Ishida, Noboru Suzuki, Takuji Matsuno, Tomohiro Kondo, Yoshihiro Miyauchi, Tsuneo Fujiwara, Etsuko Fujiwara