Patents by Inventor Yutaka Arai

Yutaka Arai 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).

  • Publication number: 20180284659
    Abstract: Provided is an electrophotographic rotatable pressing member having further durability. The electrophotographic rotatable pressing member includes: a substrate; and an elastic layer formed on the substrate, the elastic layer containing a silicone rubber and a needle-shaped filler dispersed in the silicone rubber and having hollow parts, wherein, when cutting the elastic layer along a cross section including a center axis of the substrate in a longitudinal direction of the electrophotographic rotatable pressing member, and a total of each sectional area of the hollow parts in a unit area A2 of a cross-sectional surface is defined as A1, a standard deviation of an area ratio A1/A2 is 0.08 or less.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 4, 2018
    Inventors: Jun Miura, Yutaka Arai, Takeshi Suzuki, Akeshi Asaka, Shigeaki Takada, Masaaki Takahashi, Yo Imaizumi
  • Publication number: 20180210354
    Abstract: Provided is an electrophotographic member capable of reducing a rise time of a fixing apparatus and preventing occurrence of a defective image due to an electrostatic offset. The electrophotographic member has a substrate, an elastic layer, and a surface layer containing a fluororesin, in this order, the elastic layer has a communication hole of which pores are communicated with each other, and an ionic conductive agent is adhered to an inner wall of the communication hole.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 26, 2018
    Inventors: Akeshi Asaka, Shigeaki Takada, Akiyoshi Shinagawa, Koichi Kakubari, Hiroto Ito, Yutaka Arai
  • Publication number: 20180075264
    Abstract: A video signal monitoring device includes a sensor installed in a display device and configured to detect luminance and/or chromaticity in a predetermined region among regions of a video displayed on the display device, a sensing result converting unit configured to convert the detected luminance and/or chromaticity into video identification information for identifying the video, a time measuring unit configured to acquire a clock time or a period of time at or during which the video was displayed, and a sensing result reading unit configured to output the video identification information and the clock time or the period of time.
    Type: Application
    Filed: March 8, 2016
    Publication date: March 15, 2018
    Inventors: Yoshinori MORIKI, Yutaka ARAI
  • Publication number: 20170352307
    Abstract: A display system that can solve the problem of an inadequate band in a connector or transmission path and that enables processing of a high-resolution image signal, includes a display device and an electronic apparatus that is electrically connected to the display device via a connector. The electronic apparatus receives or generates an original image signal indicating an original image that is to be displayed and supplies a plurality of divided image signals each indicating a respective image of a plurality of partial images into which the original image has been divided. The display device displays the original image on the basis of a combined image signal into which the plurality of partial image signals supplied from the electronic apparatus have been combined.
    Type: Application
    Filed: January 21, 2015
    Publication date: December 7, 2017
    Inventor: Yutaka ARAI
  • Patent number: 9800200
    Abstract: This solar cell apparatus is provided with: a long mounting frame having a guide rail section in an upper portion; and a fixing member, which is provided by being slid and moved in the longitudinal direction of the mounting frame, and which is fixed at a predetermined position of the mounting frame. The fixing member has: a base section that engages with the guide rail section; an upright wall section that is provided to stand on the base section; and insertion sections that extend from the upright wall section such that the insertion sections are inserted into a module frame of an eave-side solar cell module and a module frame of a ridge-side solar cell module.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 24, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Minoru Higuchi, Yutaka Arai, Mamoru Arimoto, Ryo Goto, Koichi Kubo, Yoshihide Kawashita
  • Patent number: 9701053
    Abstract: A manufacturing apparatus for manufacturing a fixing member includes: a metal mold capable of holding a base material of the fixing member in an inside thereof; and an injecting member including a group of openings configured to inject a liquid rubber containing a needle-like filler into the metal mold in which the base material is held. The injecting member is configured so that a ratio of a total perimeter of the group of openings to a sum of a perimeter of an inner surface of the metal mold and an outer surface of the base material is 1.3 or more and 3.3 or less.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akeshi Asaka, Shuichi Tamura, Hiroto Sugimoto, Shinsuke Takahashi, Shigeaki Takada, Takeshi Suzuki, Jun Miura, Yutaka Arai
  • Publication number: 20170120568
    Abstract: One end portion of a resin tube kept in a diameter expanded state by a plurality of diameter expanding claws is disengaged from the diameter expanding claws and is shifted onto an outer peripheral surface of a die by applying a pressing force toward the other end portion of the resin tube to an end surface of the one end portion of the resin tube.
    Type: Application
    Filed: October 25, 2016
    Publication date: May 4, 2017
    Inventors: Takeshi Suzuki, Yutaka Arai, Masaaki Takahashi, Shigeaki Takada, Akeshi Asaka, Yukio Sasame, Masayuki Onuma
  • 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
  • Patent number: 9591259
    Abstract: A control unit determines the content of a video based on an input video signal based on results of determination utilizing a monochrome determination unit and a text determination unit. Based on a display mode according to a result of the content determination, the control unit displays an image corresponding to the input video signal on a display panel.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 7, 2017
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Yutaka Arai
  • Publication number: 20170019059
    Abstract: This solar cell apparatus is provided with: a long mounting frame having a guide rail section in an upper portion; and a fixing member, which is provided by being slid and moved in the longitudinal direction of the mounting frame, and which is fixed at a predetermined position of the mounting frame. The fixing member has: a base section that engages with the guide rail section; an upright wall section that is provided to stand on the base section; and insertion sections that extend from the upright wall section such that the insertion sections are inserted into a module frame of an eave-side solar cell module and a module frame of a ridge-side solar cell module.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Minoru Higuchi, Yutaka Arai, Mamoru Arimoto, Ryo Goto, Koichi Kubo, Yoshihide Kawashita
  • Patent number: 9417575
    Abstract: A pressure member includes a base, an elastic layer outside the base, and a surface layer on the elastic layer, the surface layer containing a fluorine-containing resin. The surface layer is fixed on the elastic layer in a state of being stretched in the longitudinal direction of the pressure member, the elastic layer has a porosity of 20% by volume or more and 60% by volume or less, and when the elastic modulus of the elastic layer in the thickness direction is defined as E (ND) and the elastic modulus of the elastic layer in the longitudinal direction of the pressure member is defined as E (MD), E (MD)/E (ND) is larger than 1.0.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Miura, Yutaka Arai, Shigeaki Takada, Akeshi Asaka
  • Patent number: 9367009
    Abstract: A fixing member used for fixing a toner image on a recording material includes: a base layer; and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer has a thermal conductivity with respect to a longitudinal direction thereof in a first region where the elastic layer is contactable to the recording material on the fixing member, and the thermal conductivity is 6 times to 900 times a thermal conductivity with respect to a thickness direction in the first region. The elastic layer has a thermal conductivity with respect to the thickness direction thereof in a second region outside the first region with respect to the longitudinal direction, and the thermal conductivity with respect to the thickness direction in the second region is larger than the thermal conductivity with respect to the thickness direction in the first region.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: June 14, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Akiyama, Shigeaki Takada, Daigo Matsuura, Yasuhiro Miyahara, Akeshi Asaka, Shuichi Tamura, Toshinori Nakayama, Yutaka Arai, Jun Miura, Takeshi Suzuki, Katsuhisa Matsunaka, Shinsuke Takahashi, Hiroto Sugimoto
  • Patent number: 9348283
    Abstract: A fixing device includes a rotatable heating member and a rotatable pressing member which are configured to fix a toner image on a recording material in a nip therebetween; and a heating mechanism configured to selectively heat regions of the rotatable heating member depending on sizes of the recording material when the sizes are predetermined ones of all sizes usable in the fixing device. The rotatable pressing member includes a base layer and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer having a thermal conductivity, with respect to a longitudinal direction thereof, which is 6 times to 900 times a thermal conductivity with respect to a thickness direction thereof.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: May 24, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shigeaki Takada, Toshinori Nakayama, Masayuki Tamaki, Naoki Akiyama, Akeshi Asaka, Koichi Kakubari, Yutaka Arai, Jun Miura
  • Patent number: 9348282
    Abstract: A fixing member, includes: a base layer; and a porous elastic layer provided on the base layer and configured to contain a needle-like filler. The elastic layer has a thermal conductivity, with respect to a longitudinal direction thereof, which is 6 times to 900 times a thermal conductivity with respect to a thickness direction thereof. The elastic layer has an open cell rate larger at longitudinal end portions than at a longitudinal central portion.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 24, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shuichi Tamura, Akeshi Asaka, Hiroto Sugimoto, Shinsuke Takahashi, Shigeaki Takada, Yutaka Arai, Jun Miura
  • Patent number: 9304461
    Abstract: The present invention relates to a pressure rotating member which achieves the shortening of a warm-up time while suppressing a non-recording material-contacting area's temperature rise. The pressure rotating member which is used in a thermal fixing apparatus includes: a substrate; and an elastic layer that is formed on the substrate and has a void, wherein the elastic layer contains a needle-shaped filler, wherein the needle-shaped filler has such a thermal conductivity ?1 of the elastic layer in a direction along a rotary axis of the pressure rotating member as to be 6 times or more and 900 times or less of a thermal conductivity ?2 of the elastic layer in a thickness direction.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: April 5, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Miura, Yutaka Arai
  • Patent number: 9268273
    Abstract: A pressing rotatable member for use with an image heating apparatus including a base layer; and a porous elastic layer provided on the base layer, wherein the elastic layer has a thermal conductivity in an axial direction thereof and a thermal conductivity in a circumferential direction thereof which are not less than 6-times and not more than 900-times a thermal conductivity in a thickness direction thereof.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: February 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Miyahara, Shigeaki Takada, Toshinori Nakayama, Daigo Matsuura, Naoki Akiyama, Shuichi Tamura, Yutaka Arai, Jun Miura, Takeshi Suzuki, Katsuhisa Matsunaka
  • Publication number: 20160018767
    Abstract: A fixing device includes a rotatable heating member and a rotatable pressing member which are configured to fix a toner image on a recording material in a nip therebetween; and a heating mechanism configured to selectively heat regions of the rotatable heating member depending on sizes of the recording material when the sizes are predetermined ones of all sizes usable in the fixing device. The rotatable pressing member includes a base layer and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer having a thermal conductivity, with respect to a longitudinal direction thereof, which is 6 times to 900 times a thermal conductivity with respect to a thickness direction thereof.
    Type: Application
    Filed: July 14, 2015
    Publication date: January 21, 2016
    Inventors: Shigeaki Takada, Toshinori Nakayama, Masayuki Tamaki, Naoki Akiyama, Akeshi Asaka, Koichi Kakubari, Yutaka Arai, Jun Miura
  • Publication number: 20160018766
    Abstract: A fixing member used for fixing a toner image on a recording material includes: a base layer; and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer has a thermal conductivity with respect to a longitudinal direction thereof in a first region where the elastic layer is contactable to the recording material on the fixing member, and the thermal conductivity is 6 times to 900 times a thermal conductivity with respect to a thickness direction in the first region. The elastic layer has a thermal conductivity with respect to the thickness direction thereof in a second region outside the first region with respect to the longitudinal direction, and the thermal conductivity with respect to the thickness direction in the second region is larger than the thermal conductivity with respect to the thickness direction in the first region.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 21, 2016
    Inventors: Naoki Akiyama, Shigeaki Takada, Daigo Matsuura, Yasuhiro Miyahara, Akeshi Asaka, Shuichi Tamura, Toshinori Nakayama, Yutaka Arai, Jun Miura, Takeshi Suzuki, Katsuhisa Matsunaka, Shinsuke Takahashi, Hiroto Sugimoto
  • Publication number: 20160018771
    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: Application
    Filed: July 13, 2015
    Publication date: January 21, 2016
    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: 20160018765
    Abstract: A fixing member, includes: a base layer; and a porous elastic layer provided on the base layer and configured to contain a needle-like filler. The elastic layer has a thermal conductivity, with respect to a longitudinal direction thereof, which is 6 times to 900 times a thermal conductivity with respect to a thickness direction thereof. The elastic layer has an open cell rate larger at longitudinal end portions than at a longitudinal central portion.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 21, 2016
    Inventors: Shuichi Tamura, Akeshi Asaka, Hiroto Sugimoto, Shinsuke Takahashi, Shigeaki Takada, Yutaka Arai, Jun Miura