Patents by Inventor Tsuyoshi Yamanaka

Tsuyoshi Yamanaka 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: 11516360
    Abstract: An image reading apparatus includes an output tray that receives a medium which is output thereon; an output roller pair that outputs the medium onto the output tray; an output-tray posture switching portion that switches a posture of the output tray with respect to the apparatus body; and an output-direction switching portion that switches an output direction of the medium by using the output roller pair. The output roller pair includes an output driving roller, and an output driven roller that nips the medium between the output driven roller and the output driving roller and that follows the rotation of the output driving roller. The output-direction switching portion switches the output direction of the medium by displacing a rotation center of the output driven roller around a rotation center of the output driving roller.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: November 29, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Keisuke Miyauchi, Tsuyoshi Yamanaka, Shinsuke Kogi
  • Patent number: 11509785
    Abstract: In a scanner, a medium transport apparatus includes an apparatus main body including a medium transport path from a supply unit, which supplies a medium, to a discharge unit, which discharges the medium, a switcher that switches an attitude of the apparatus main body with respect to a mounting surface on which the apparatus main body is mounted, and a controller that, when the attitude of the apparatus main body with respect to the mounting surface is switched, performs control in accordance with the attitude after the switching.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: November 22, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Noriyuki Koyanagi, Tsuyoshi Yamanaka, Tomoyuki Mokuo, Tokujiro Okuno, Masahiko Mizoguchi, Masahiro Igarashi, Akifumi Sugano, Wataru Beppu
  • Patent number: 11489979
    Abstract: A reading apparatus includes: a reading section that reads a side of a medium; a first medium transport path that includes a position facing the reading section; a second medium transport path coupled to a medium mounting section and coupled to the first medium transport path, the second medium transport path being inclined at a first angle with respect to the first medium transport path; and a third medium transport path coupled to the first medium transport path, the third medium transport path being inclined at a second angle, which is less than the first angle, with respect to the first medium transport path.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: November 1, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Nakashima, Tsuyoshi Yamanaka, Tokujiro Okuno
  • Publication number: 20210329141
    Abstract: An image reading apparatus includes an output tray that receives a medium which is output thereon; an output roller pair that outputs the medium onto the output tray; an output-tray posture switching portion that switches a posture of the output tray with respect to the apparatus body; and an output-direction switching portion that switches an output direction of the medium by using the output roller pair. The output roller pair includes an output driving roller, and an output driven roller that nips the medium between the output driven roller and the output driving roller and that follows the rotation of the output driving roller. The output-direction switching portion switches the output direction of the medium by displacing a rotation center of the output driven roller around a rotation center of the output driving roller.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Inventors: Keisuke MIYAUCHI, Tsuyoshi YAMANAKA, Shinsuke KOGI
  • Publication number: 20210306492
    Abstract: A reading apparatus includes: a reading section that reads a side of a medium; a first medium transport path that includes a position facing the reading section; a second medium transport path coupled to a medium mounting section and coupled to the first medium transport path, the second medium transport path being inclined at a first angle with respect to the first medium transport path; and a third medium transport path coupled to the first medium transport path, the third medium transport path being inclined at a second angle, which is less than the first angle, with respect to the first medium transport path.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Inventors: Hiroki NAKASHIMA, Tsuyoshi YAMANAKA, Tokujiro OKUNO
  • Patent number: 11095790
    Abstract: An image reading apparatus includes an output tray that receives a medium which is output thereon; an output roller pair that outputs the medium onto the output tray; an output-tray posture switching portion that switches a posture of the output tray with respect to the apparatus body; and an output-direction switching portion that switches an output direction of the medium by using the output roller pair. The output roller pair includes an output driving roller, and an output driven roller that nips the medium between the output driven roller and the output driving roller and that follows the rotation of the output driving roller. The output-direction switching portion switches the output direction of the medium by displacing a rotation center of the output driven roller around a rotation center of the output driving roller.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 17, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Keisuke Miyauchi, Tsuyoshi Yamanaka, Shinsuke Kogi
  • Publication number: 20210250457
    Abstract: In a scanner, a medium transport apparatus includes an apparatus main body including a medium transport path from a supply unit, which supplies a medium, to a discharge unit, which discharges the medium, a switcher that switches an attitude of the apparatus main body with respect to a mounting surface on which the apparatus main body is mounted, and a controller that, when the attitude of the apparatus main body with respect to the mounting surface is switched, performs control in accordance with the attitude after the switching.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Inventors: Noriyuki Koyanagi, Tsuyoshi Yamanaka, Tomoyuki Mokuo, Tokujiro Okuno, Masahiko Mizoguchi, Masahiro Igarashi, Akifumi Sugano, Wataru Beppu
  • Patent number: 11019231
    Abstract: In a scanner, a medium transport apparatus includes an apparatus main body including a medium transport path from a supply unit, which supplies a medium, to a discharge unit, which discharges the medium, a switcher that switches an attitude of the apparatus main body with respect to a mounting surface on which the apparatus main body is mounted, and a controller that, when the attitude of the apparatus main body with respect to the mounting surface is switched, performs control in accordance with the attitude after the switching.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 25, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Noriyuki Koyanagi, Tsuyoshi Yamanaka, Tomoyuki Mokuo, Tokujiro Okuno, Masahiko Mizoguchi, Masahiro Igarashi, Akifumi Sugano, Wataru Beppu
  • Patent number: 10961067
    Abstract: A medium feeding apparatus includes a feeding roller, a separation roller which nips a medium between the separation roller and the feeding roller to separate the medium and to which a driving torque is applied by a driving source in a second rotation direction that is opposite to a first rotation direction in which the medium is fed to a downstream side, and a torque limiter that causes the separation roller to idle in the first rotation direction when a rotational torque applied to the separation roller in the first rotation direction exceeds a limit torque that is a predetermined upper torque limit, in which separation setting including a pressing load of the separation roller, a rotational speed of the separation roller, and the limit torque is changeable according to condition of feeding.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: March 30, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Ryoichi Shuto, Tsuyoshi Yamanaka, Kazuya Yoshikaie, Shinsuke Kogi
  • Publication number: 20200076974
    Abstract: In a scanner, a medium transport apparatus includes an apparatus main body including a medium transport path from a supply unit, which supplies a medium, to a discharge unit, which discharges the medium, a switcher that switches an attitude of the apparatus main body with respect to a mounting surface on which the apparatus main body is mounted, and a controller that, when the attitude of the apparatus main body with respect to the mounting surface is switched, performs control in accordance with the attitude after the switching.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Inventors: Noriyuki Koyanagi, Tsuyoshi Yamanaka, Tomoyuki Mokuo, Tokujiro Okuno, Masahiko Mizoguchi, Masahiro Igarashi, Akifumi Sugano, Wataru Beppu
  • Patent number: 10530951
    Abstract: A feed tray can be switched between a first posture in which the feed tray is at a first tilt angle, and a second posture in which the feed tray is at a second tilt angle that is closer to a horizontal direction than the first tilt angle or the feed tray is horizontal. An image reading apparatus executes a first feed mode that starts feed of a medium based on a reading execution operation by a user in the first posture, and executes a second feed mode that starts feed of a medium when setting of the medium on the feed tray is detected in the second posture.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: January 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Keisuke Miyauchi, Noriyuki Koyanagi, Tsuyoshi Yamanaka, Shinsuke Kogi, Tomoyuki Mokuo
  • Publication number: 20190193967
    Abstract: A medium feeding apparatus includes a feeding roller, a separation roller which nips a medium between the separation roller and the feeding roller to separate the medium and to which a driving torque is applied by a driving source in a second rotation direction that is opposite to a first rotation direction in which the medium is fed to a downstream side, and a torque limiter that causes the separation roller to idle in the first rotation direction when a rotational torque applied to the separation roller in the first rotation direction exceeds a limit torque that is a predetermined upper torque limit, in which separation setting including a pressing load of the separation roller, a rotational speed of the separation roller, and the limit torque is changeable according to condition of feeding.
    Type: Application
    Filed: December 24, 2018
    Publication date: June 27, 2019
    Inventors: Ryoichi SHUTO, Tsuyoshi YAMANAKA, Kazuya YOSHIKAIE, Shinsuke KOGI
  • Publication number: 20190132464
    Abstract: An image reading apparatus includes an output tray that receives a medium which is output thereon; an output roller pair that outputs the medium onto the output tray; an output-tray posture switching portion that switches a posture of the output tray with respect to the apparatus body; and an output-direction switching portion that switches an output direction of the medium by using the output roller pair. The output roller pair includes an output driving roller, and an output driven roller that nips the medium between the output driven roller and the output driving roller and that follows the rotation of the output driving roller. The output-direction switching portion switches the output direction of the medium by displacing a rotation center of the output driven roller around a rotation center of the output driving roller.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Keisuke MIYAUCHI, Tsuyoshi YAMANAKA, Shinsuke KOGI
  • Publication number: 20190132455
    Abstract: A feed tray can be switched between a first posture in which the feed tray is at a first tilt angle, and a second posture in which the feed tray is at a second tilt angle that is closer to a horizontal direction than the first tilt angle or the feed tray is horizontal. An image reading apparatus executes a first feed mode that starts feed of a medium based on a reading execution operation by a user in the first posture, and executes a second feed mode that starts feed of a medium when setting of the medium on the feed tray is detected in the second posture.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Keisuke MIYAUCHI, Noriyuki KOYANAGI, Tsuyoshi YAMANAKA, Shinsuke KOGI, Tomoyuki MOKUO
  • Patent number: 9347501
    Abstract: A drive power transmission system includes-a clutch hub, a clutch drum and a dry clutch. The dry clutch includes-first and second clutch plates, a friction facing and a cover member. The first clutch plate is joined to the clutch hub. The second clutch plate is joined to the clutch drum. The cover member has an external air intake hole and an external air discharge hole. These holes of the cover member are positioned such that, due to rotation of at least one of the clutch hub and the clutch drum, an air flow is generated that draws external air is through the external air intake hole and along the clutch hub to a radially inward location of reduced air pressure, then passes radially outward to a radially outward location of increased air pressure, and then passes along the clutch drum and out the external air discharge hole.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: May 24, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tatsuya Akimoto, Shigeru Ishii, Tsuyoshi Yamanaka, Tomoharu Fujii
  • Patent number: 9080612
    Abstract: Provided are devices and methods to minimize drag caused by abrasion powder between clutch plates and to prevent a faulty engagement or release of a dry clutch. A hybrid driving force transmission device is provided, wherein a multi-plate dry clutch is arranged in a sealed space and used for connecting/disconnecting transmission of a driving force is provided with drive plates, driven plates, friction facings, and a housing cover. The drive plates are splined to a clutch hub, and have, in the sections thereof that are splined to the clutch hub, vent holes for channeling the air flowing in the axial direction. The driven plates are splined to a clutch drum. The housing cover has an external air intake hole for drawing external air into the sealed space, and an external air discharge hole for discharging the airflow from the sealed space to the outside.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: July 14, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tomoharu Fujii, Tsuyoshi Yamanaka, Shigeru Ishii
  • Patent number: 8864395
    Abstract: A medium feeding apparatus includes: a placement portion on which a medium is placed; a feeding unit which feeds the fed medium placed on the placement portion in a feeding direction; an edge guide which makes contact with the medium placed on the placement portion at a side edge in a width direction so as to determine a position of the medium in the width direction; and an adjustment unit which displaces at least a part of the edge guide such that a contact portion of the edge guide with the medium is placed on a line along the feeding direction so as to adjust a posture of the medium with respect to the feeding direction.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: October 21, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Yamanaka
  • Publication number: 20140284164
    Abstract: A drive power transmission system includes-a clutch hub, a clutch drum and a dry clutch. The dry clutch includes-first and second clutch plates, a friction facing and a cover member. The first clutch plate is joined to the clutch hub. The second clutch plate is joined to the clutch drum. The cover member has an external air intake hole and an external air discharge hole. These holes of the cover member are positioned such that, due to rotation of at least one of the clutch hub and the clutch drum, an air flow is generated that draws external air is through the external air intake hole and along the clutch hub to a radially inward location of reduced air pressure, then passes radially outward to a radially outward location of increased air pressure, and then passes along the clutch drum and out the external air discharge hole.
    Type: Application
    Filed: October 11, 2012
    Publication date: September 25, 2014
    Inventors: Tatsuya Akimoto, Shigeru Ishii, Tsuyoshi Yamanaka, Tomoharu Fujii
  • Publication number: 20130313063
    Abstract: Provided are devices and methods to minimize drag caused by abrasion powder between clutch plates and to prevent a faulty engagement or release of a dry clutch. A hybrid driving force transmission device is provided, wherein a multi-plate dry clutch is arranged in a sealed space and used for connecting/disconnecting transmission of a driving force is provided with drive plates, driven plates, friction facings, and a housing cover The drive plates are splined to a clutch hub, and have, in the sections thereof that are splined to the clutch hub, vent holes for channeling the air flowing in the axial direction. The driven plates are splined to a clutch drum. The housing cover has an external air intake hole for drawing external air into the sealed space, and an external air discharge hole for discharging the airflow from the sealed space to the outside.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 28, 2013
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tomoharu Fujii, Tsuyoshi Yamanaka, Shigeru Ishii
  • Patent number: 8527167
    Abstract: A control apparatus of a driving force in case of belt slipping includes a belt slip control detecting unit adapted to detect that the belt slip control is in execution, a belt contact radius ratio calculating unit adapted to calculate a belt contact radius ratio of the V-belt to the pulleys, and a power source output torque determining unit adapted to determine a target power output torque according to the belt contact radius ratio in execution of the belt slip control in response to signals from the belt slip control detecting unit and the belt contact radius ratio calculating unit.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: September 3, 2013
    Assignees: Nissan Motor Co., Ltd., Jatco Ltd
    Inventors: Tsuyoshi Yamanaka, Manabu Yamanaka, Shigeki Shimanaka