Patents by Inventor Naoyuki OBA

Naoyuki OBA 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).

  • Checking tool for tube coupler
    Patent number: 11320078
    Abstract: The present invention provides a checking tool for a tube coupler with which it is possible to visually check an attachment state of the tube coupler. A checking tool 10 for a tube coupler according to the present invention is a checking tool configured to be attached to a tube coupler 30, the tube coupler being formed of a first coupling piece 31 and a second coupling piece 35 hingedly connected to each other so as to be able to be opened and closed, being configured to couple tubes to each other with use of the first coupling piece and the second coupling piece, and having hook pieces 33 and 37 that are provided protruding from outer circumferential surfaces of the first coupling piece and the second coupling piece.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: May 3, 2022
    Assignees: YODOGAWA HU-TECH CO., LTD., CKD CORPORATION
    Inventors: Naoyuki Oba, Akihiro Yamamoto, Katsumi Ogawa, Hiroki Iwata
  • Clamping jig for tube connection
    Patent number: 11161229
    Abstract: The present invention provides a clamping jig for tube connection with which it is possible to clamp tubes even in a small and narrow space. A clamping jig for tube connection 10 according to the present invention is a clamping jig for tube connection that clamps joint-equipped tubes 60, each tube including a protruding collar portion 63 at a position rearward of its leading end.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: November 2, 2021
    Assignees: YODOGAWA HU-TECH CO., LTD., CKD CORPORATION
    Inventors: Akihiro Yamamoto, Naoyuki Oba, Katsumi Ogawa, Hiroki Iwata
  • CHECKING TOOL FOR TUBE COUPLER
    Publication number: 20200025322
    Abstract: The present invention provides a checking tool for a tube coupler with which it is possible to visually check an attachment state of the tube coupler. A checking tool 10 for a tube coupler according to the present invention is a checking tool configured to be attached to a tube coupler 30, the tube coupler being formed of a first coupling piece 31 and a second coupling piece 35 hingedly connected to each other so as to be able to be opened and closed, being configured to couple tubes to each other with use of the first coupling piece and the second coupling piece, and having hook pieces 33 and 37 that are provided protruding from outer circumferential surfaces of the first coupling piece and the second coupling piece.
    Type: Application
    Filed: July 12, 2019
    Publication date: January 23, 2020
    Applicants: YODOGAWA HU-TECH CO.,LTD., CKD CORPORATION
    Inventors: Naoyuki OBA, Akihiro YAMAMOTO, Katsumi OGAWA, Hiroki IWATA
  • CLAMPING JIG FOR TUBE CONNECTION
    Publication number: 20190321951
    Abstract: The present invention provides a clamping jig for tube connection with which it is possible to clamp tubes even in a small and narrow space. A clamping jig for tube connection 10 according to the present invention is a clamping jig for tube connection that clamps joint-equipped tubes 60, each tube including a protruding collar portion 63 at a position rearward of its leading end.
    Type: Application
    Filed: February 27, 2019
    Publication date: October 24, 2019
    Applicants: YODOGAWA HU-TECH CO.,LTD., CKD CORPORATION
    Inventors: Akihiro YAMAMOTO, Naoyuki OBA, Katsumi OGAWA, Hiroki IWATA