Patents by Inventor Yohei TOMIKAWA

Yohei TOMIKAWA 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: 20250060698
    Abstract: An image forming apparatus configured to form an image on a sheet includes an apparatus body, a drawer unit configured to be pulled out from the apparatus body, a cover provided to be openable and closable on the apparatus body, the cover being movable to a closed position where the cover covers the drawer unit attached to the apparatus body and an open position where the drawer unit is exposed so as to be pulled out from the apparatus body, a restricting portion configured to transit to a restricted state in which the drawer unit is restricted from being pulled out from the apparatus body and an allowable state in which the drawer unit is allowed to be pulled out from the apparatus body, and a display portion provided in the drawer unit and configured to display a state of the restricting portion.
    Type: Application
    Filed: November 7, 2024
    Publication date: February 20, 2025
    Inventor: YOHEI TOMIKAWA
  • Patent number: 12169383
    Abstract: An image forming apparatus configured to form an image on a sheet includes an apparatus body, a drawer unit configured to be pulled out from the apparatus body, a cover provided to be openable and closable on the apparatus body, the cover being movable to a closed position where the cover covers the drawer unit attached to the apparatus body and an open position where the drawer unit is exposed so as to be pulled out from the apparatus body, a restricting portion configured to transit to a restricted state in which the drawer unit is restricted from being pulled out from the apparatus body and an allowable state in which the drawer unit is allowed to be pulled out from the apparatus body, and a display portion provided in the drawer unit and configured to display a state of the restricting portion.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: December 17, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yohei Tomikawa
  • Publication number: 20230259063
    Abstract: An image forming apparatus configured to form an image on a sheet includes an apparatus body, a drawer unit configured to be pulled out from the apparatus body, a cover provided to be openable and closable on the apparatus body, the cover being movable to a closed position where the cover covers the drawer unit attached to the apparatus body and an open position where the drawer unit is exposed so as to be pulled out from the apparatus body, a restricting portion configured to transit to a restricted state in which the drawer unit is restricted from being pulled out from the apparatus body and an allowable state in which the drawer unit is allowed to be pulled out from the apparatus body, and a display portion provided in the drawer unit and configured to display a state of the restricting portion.
    Type: Application
    Filed: December 29, 2022
    Publication date: August 17, 2023
    Inventor: YOHEI TOMIKAWA
  • Patent number: 10406629
    Abstract: To provide a method for joining metal members, in which joining can be performed at relatively lower temperature, and deformation caused when joining the metal members can be reduced. The present invention includes a step of joining a plurality of metal members with a sheet sandwiched between the joining surfaces of the plurality of metal members, wherein the sheet is obtained by forming an organic acid metal salt film on the surface of a metal sheet; wherein aluminum or an aluminum alloy is used as the metal members, and a sheet made of any one of zinc, copper and magnesium is used as the metal sheet.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 10, 2019
    Assignee: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Shinji Koyama, Xiaojuan Ma, Tatsunori Tsunetou, Tsukasa Akiyama, Yohei Tomikawa
  • Publication number: 20180264587
    Abstract: To provide a method for joining metal members, in which joining can be performed at relatively lower temperature, and deformation caused when joining the metal members can be reduced. The present invention includes a step of joining a plurality of metal members with a sheet sandwiched between the joining surfaces of the plurality of metal members, wherein the sheet is obtained by forming an organic acid metal salt film on the surface of a metal sheet; wherein aluminum or an aluminum alloy is used as the metal members, and a sheet made of any one of zinc, copper and magnesium is used as the metal sheet.
    Type: Application
    Filed: December 21, 2015
    Publication date: September 20, 2018
    Applicant: National University Corporation Gunma University
    Inventors: Shinji KOYAMA, Xiaojuan MA, Tatsunori TSUNETOU, Tsukasa AKIYAMA, Yohei TOMIKAWA