Patents by Inventor Yasuhiro Miyahara

Yasuhiro Miyahara 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: 10712697
    Abstract: Provided is a fixing member includes: a substrate; and an elastic layer on the substrate, wherein the elastic layer contains a rubber and fillers dispersed in the rubber, and wherein an average value of area ratios of large-particle diameter fillers is 20% or more and 40% or less, and the large-particle diameter fillers have an average array degree fL of 0.00 or more and 0.15 or less, an average value of an area ratios of small-particle diameter fillers is 10% or more and 20% or less, the small-particle diameter fillers have an average array degree fS of 0.20 or more and 0.50 or less, and the small-particle diameter fillers have an average array angle ?S of 60° or more and 120° or less.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Matsutaka Maeda, Yuji Kitano, Mamo Matsumoto, Katsuhisa Matsunaka, Yasuharu Notoya, Yo Imaizumi, Takuji Oishi, Yasuhiro Miyahara
  • Publication number: 20200209793
    Abstract: An image heating member for heating an image formed on a recording material includes a base material, an elastic layer which contains a thermally conductive filler of 5 ?m or more in average diameter and which is provided on the base material, and a parting layer which is provided on the elastic layer so as to contact the elastic layer and which is formed of a fluorine-containing resin tube provided on the elastic layer. The fluorine-containing resin tube has 3% or more in heat contraction rate with respect to a widthwise direction of the image heating member before and after the fluorine-containing resin tube is heated and left standing in an oven at 200° C. for 30 minutes.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 2, 2020
    Inventors: Akeshi Asaka, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Yasuhiro Miyahara, Noriaki Kobayashi
  • Publication number: 20200175471
    Abstract: A vehicle including: a first bay configured to accommodate a ground-based moving body; a second bay configured to accommodate a flying moving body; a cargo hold connected to both the first bay and the second bay, and configured to store a package to be moved to either the ground-based moving body or the flying moving body; a first memory; and a first processor connected to the first memory, the first processor being configured to select whether to move the package in the cargo hold to the ground-based moving body or the flying moving body.
    Type: Application
    Filed: November 1, 2019
    Publication date: June 4, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ayano TSURUTA, Yasuhiro HARA, Junya WATANABE, Kenta MIYAHARA, Nana KIKUIRE
  • Publication number: 20200175468
    Abstract: A delivery system including a vehicle in which a package addressed to a specific user is stored, and a moving body deployed at a delivery site of the package: the moving body including: a first memory, and a first processor that is connected to the first memory; and the first processor being configured to: transmit and receive predetermined information, and perform control, in a case in which the vehicle is proximate to the delivery site, to move the moving body from the delivery site toward the vehicle, to retrieve the package, and then to move the moving body back to the delivery site.
    Type: Application
    Filed: October 30, 2019
    Publication date: June 4, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ayano Tsuruta, Yasuhiro Hara, Junya Watanabe, Kenta Miyahara, Nana Kikuire
  • Publication number: 20200019100
    Abstract: A fixing apparatus includes an endless belt, and a pressing member including a base body and an elastic layer formed on the base body. A plurality of pore portions connected to each other are provided in the elastic layer. In a case where a binary image is generated from a three-dimensional image of the elastic layer, a threshold value X ?m corresponding to opening processing with which a number of pores derived from the pore portions takes a maximum value is obtained, and then pores derived from the pore portions in the elastic layer are extracted by performing opening processing with a threshold value of 2X ?m, an average value of angles ? is 120° or larger and smaller than 150°.
    Type: Application
    Filed: June 18, 2019
    Publication date: January 16, 2020
    Inventors: Akeshi Asaka, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Yasuhiro Miyahara, Noriaki Kobayashi
  • Publication number: 20200004308
    Abstract: An electronic device comprises an interface including a first terminal that receives power from an external device and a second terminal for communicating with the external device, and at least one processor and/or at least one circuit to perform the operations of a communication unit that communicates with the external device via the second terminal, and a control unit that controls a connection between the second terminal and a ground, wherein in a case that a state of power received via the first terminal is a predetermined state, the communication unit sends a reset request for stopping the supply of power to the external device, and the control unit controls the connection between the second terminal and the ground from a connected state to a disconnected state.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Hiroshi Moritomo, Tsuyoshi Fujisaki, Kazuya Miyahara, Yasuhiro Sato, Tomoya Yamashita
  • Publication number: 20190377291
    Abstract: Provided is a fixing member includes: a substrate; and an elastic layer on the substrate, wherein the elastic layer contains a rubber and fillers dispersed in the rubber, and wherein an average value of area ratios of large-particle diameter fillers is 20% or more and 40% or less, and the large-particle diameter fillers have an average array degree fL of 0.00 or more and 0.15 or less, an average value of an area ratios of small-particle diameter fillers is 10% or more and 20% or less, the small-particle diameter fillers have an average array degree fS of 0.20 or more and 0.50 or less, and the small-particle diameter fillers have an average array angle ?S of 60° or more and 120° or less.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 12, 2019
    Inventors: Matsutaka Maeda, Yuji Kitano, Mamo Matsumoto, Katsuhisa Matsunaka, Yasuharu Notoya, Yo Imaizumi, Takuji Oishi, Yasuhiro Miyahara
  • Patent number: 9891565
    Abstract: The present invention is directed to providing a fixing member that can form high quality electrophotographic images. The fixing member includes a substrate, an elastic layer on the substrate and a surface layer bonded to the elastic layer with an adhesive layer. The surface layer contains a fluorine resin. The surface layer having a thermal resistance in the thickness direction of 3.0×10?5 m2·K/W or more and 1.3×10?4 m2·K/W or less and the peel adhesion strength between the surface layer and the elastic layer is 3.0 N/cm or more and 20.0 N/cm or less, while the elastic layer undergoes a cohesive failure in a peel test between the surface layer and the elastic layer and the fluorine resin contains a tetrafluoroethylene/perfluoroethyl vinyl ether copolymer, the polymerization ratio of perfluoroethyl vinyl ether in the copolymer being 3.0 mol % or more and 5.8 mol % or less.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 13, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasuhiro Miyahara, Katsuhisa Matsunaka
  • Publication number: 20180032004
    Abstract: The present invention is directed to providing a fixing member that can form high quality electrophotographic images. The fixing member comprises a substrate, an elastic layer on the substrate and a surface layer bonded to the elastic layer with an adhesive layer. The surface layer contains a fluorine resin. The surface layer having a thermal resistance in the thickness direction of 3.0×10?5 m2·K/W or more and 1.3×10?4 m2·K/W or less and the peel adhesion strength between the surface layer and the elastic layer is 3.0 N/cm or more and 20.0 N/cm or less, while the elastic layer undergoes a cohesive failure in a peel test between the surface layer and the elastic layer and the fluorine resin contains a tetrafluoroethylene/perfluoroethyl vinyl ether copolymer, the polymerization ratio of perfluoroethyl vinyl ether in the copolymer being 3.0 mol % or more and 5.8 mol % or less.
    Type: Application
    Filed: June 19, 2017
    Publication date: February 1, 2018
    Inventors: Yasuhiro Miyahara, Katsuhisa Matsunaka
  • Patent number: 9857739
    Abstract: A coating apparatus configured to coat a peripheral surface of an endless member with a coating liquid, includes: a holding member configured to hold the endless member; an impregnation member configured to be impregnated with the coating liquid and configured to coat the endless member with the coating liquid in contact with the endless member; a nozzle member configured to eject the coating liquid onto the endless member; a rotating mechanism configured to rotate the holding member relative to the impregnation member and the nozzle member; and a moving mechanism configured to move the holding member relative to the impregnation member and the nozzle member so that the coating liquid is ejected from the nozzle member onto the endless member in a region where the coating liquid is already coated by the impregnation member.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: January 2, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasuhiro Miyahara, Yuji Hasegawa, Katsuya Abe
  • Patent number: 9671731
    Abstract: A fixing member is provided, including a release layer containing a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), wherein a content of the perfluoroalkyl vinyl ether (PAVE) based on all PFAs in the release layer is 3.0 mol % or more and 5.8 mol % or less, and an elastic layer having an indentation elastic modulus EITs at a surface thereof and an indentation elastic modulus EITc at a position in a depth of 50 ?m from the surface, EITs and EITc being measured at a temperature of 150° C., and EITs is larger than EITc and EITc being 17 MPa or more and 24 MPa or less.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 6, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Katsuhisa Matsunaka, Yoshihito Oshima, Toshinori Nakayama, Yasuhiro Miyahara
  • Patent number: 9637888
    Abstract: A compact excavator includes: a swing post which is attached to a upperstructure and which can swing in a left/right direction, a working device which is attached to the swing post and which includes a boom cylinder, a counterweight, and hydraulic hoses which extend upwards between opposite side plates of the swing post, and through which pressure oil for driving the boom cylinder of the working device is guided. The compact excavator further includes a guide plate which is provided in the swing post, and which guides the hydraulic hoses downwards while restricting the hydraulic hoses from moving to approach a handrail when the hydraulic hoses attempt to expand toward the handrail due to driving of the working device.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 2, 2017
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yohei Iwamoto, Junya Kawamoto, Osamu Kokuryou, Hiroshi Tabeta, Yasuhiro Miyahara
  • Patent number: 9606486
    Abstract: An elastic layer includes a needle-shaped filler and a void and has a porosity of 20 vol % or more and 60 vol % or less. The elastic layer contains a first area and a second area. The first area extends from a surface of the elastic layer opposite to a surface facing the mandrel toward the mandrel and has a thickness of 30% of the thickness of the elastic layer. The second area is a central area in a thickness direction of the elastic layer and has a thickness of 40% of the thickness of the elastic layer. The needle-shaped filler in the second area has an orientation degree of 50% or lower. The needle-shaped filler in the first area has an orientation degree higher than that of the needle-shaped filler in the second area.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Arai, Takeshi Suzuki, Jun Miura, Shigeaki Takada, Toshinori Nakayama, Naoki Akiyama, Daigo Matsuura, Yasuhiro Miyahara, Akeshi Asaka, Shuichi Tamura, Katsuhisa Matsunaka, Shinsuke Takahashi, Hiroto Sugimoto
  • Publication number: 20170038707
    Abstract: A fixing member is provided, including a release layer containing a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), wherein a content of the perfluoroalkyl vinyl ether (PAVE) based on all PFAs in the release layer is 3.0 mol % or more and 5.8 mol % or less, and an elastic layer having an indentation elastic modulus EITs at a surface thereof and an indentation elastic modulus EITc at a position in a depth of 50 ?m from the surface, EITs and EITc being measured at a temperature of 150° C., and EITs is larger than EITc and EITc being 17 MPa or more and 24 MPa or less.
    Type: Application
    Filed: September 25, 2015
    Publication date: February 9, 2017
    Inventors: Katsuhisa Matsunaka, Yoshihito Oshima, Toshinori Nakayama, Yasuhiro Miyahara
  • Patent number: 9535381
    Abstract: An electrophotographic member includes a rubber layer having a lightness of 15 or less and including a marked portion formed so as to have a depth of 35 ?m or more and 100 ?m or less, a fluorine-based resin layer having a light transmittance of 60% or more, and an adhesive layer disposed between the rubber layer and the fluorine-based resin layer. The adhesive layer has a lightness of 60 or more and has a thickness of 3 ?m or more and 10 ?m or less in a portion surrounding the marked portion.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: January 3, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Miyahara, Naoki Akiyama, Akiyoshi Shinagawa
  • Patent number: 9459572
    Abstract: A fixing member manufacturing method includes: a step of holding a longitudinal end of a resin tube by a first holding tool; a step of holding another longitudinal end of the resin tube by a second holding tool; a step of decreasing a distance between the first and second holding tools each holding the resin tube, by a predetermined amount; a step of expanding, after the decreasing step, the resin tube in a radial direction; and a step of externally fitting the resin tube, expanded in the radial direction, around an elastic material coated with an adhesive.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: October 4, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Akiyama, Hiroto Sugimoto, Yasuhiro Miyahara, Nobuyuki Kume, Yoshiaki Yoshida
  • Publication number: 20160259276
    Abstract: An electrophotographic member includes a rubber layer having a lightness of 15 or less and including a marked portion formed so as to have a depth of 35 ?m or more and 100 ?m or less, a fluorine-based resin layer having a light transmittance of 60% or more, and an adhesive layer disposed between the rubber layer and the fluorine-based resin layer. The adhesive layer has a lightness of 60 or more and has a thickness of 3 ?m or more and 10 ?m or less in a portion surrounding the marked portion.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 8, 2016
    Inventors: Yasuhiro Miyahara, Naoki Akiyama, Akiyoshi Shinagawa
  • Patent number: 9436138
    Abstract: A fixing member includes a substrate and an elastic layer on the substrate. The elastic layer comprises a cured product of a silicone rubber composition containing an anatase titanium oxide particle and an addition-curable silicone rubber, and undergoes cohesive failure in 90° peel test specified in JIS K6854-1: 1999. In the fixing member, an allyl group bound to a silicon atom is present at the interface between the substrate and the elastic layer.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: September 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhisa Matsunaka, Katsuya Abe, Naoki Akiyama, Yasuhiro Miyahara
  • Patent number: 9395666
    Abstract: Provided is a member for electrophotography. The member for electrophotography includes: a substrate; an elastic layer containing a cured silicone rubber having a methyl group bonded to a silicon atom; and a fluorine resin release layer bonded to a surface of the elastic layer by an addition-curing-type silicone rubber adhesive. The elastic layer contains a titanium oxide particle having an anatase-type crystal structure.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: July 19, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Katsuya Abe, Katsuhisa Matsunaka, Yasuhiro Miyahara, Naoki Akiyama, Hiroto Sugimoto
  • Publication number: 20160195838
    Abstract: A fixing member includes a substrate and an elastic layer on the substrate. The elastic layer comprises a cured product of a silicone rubber composition containing an anatase titanium oxide particle and an addition-curable silicone rubber, and undergoes cohesive failure in 90° peel test specified in JIS K6854-1: 1999. In the fixing member, an allyl group bound to a silicon atom is present at the interface between the substrate and the elastic layer.
    Type: Application
    Filed: January 4, 2016
    Publication date: July 7, 2016
    Inventors: Katsuhisa Matsunaka, Katsuya Abe, Naoki Akiyama, Yasuhiro Miyahara