Patents by Inventor Mikio Yamasaki

Mikio Yamasaki 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).

  • Connector and connector set
    Patent number: 8747166
    Abstract: A connector etc. that prevents wrong insertion and does not require large rotation of plug etc., when inserting a plug to a socket, is provided. Plug-in connector 1 comprises pin plug 10 and receptacle 20, and pin plug 10 and receptacle 20 are connected. On pin cover body 14 of pin plug 10, plural pin plug key protrusions 15 are constructed separately along the circumferential direction, and on socket cover 27 of receptacle 20, plural sets 28a-28e of plural key grooves 28 separated along the circumferential direction, that plural pin plug key protrusions 15 fit into each set, are arranged with shifting along the circumferential direction. Receptacle 20 can be substituted by a socket plug 30.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: June 10, 2014
    Assignees: Furukawa Electric Power Systems Co., Ltd., NTT Facilities, Inc.
    Inventors: Daisuke Yamada, Mikio Yamasaki, Takashi Takeda, Akira Matsumoto
  • CONNECTOR AND CONNECTOR SET
    Publication number: 20120258638
    Abstract: A connector etc. that prevents wrong insertion and does not require large rotation of plug etc., when inserting a plug to a socket, is provided. Plug-in connector 1 comprises pin plug 10 and receptacle 20, and pin plug 10 and receptacle 20 are connected. On pin cover body 14 of pin plug 10, plural pin plug key protrusions 15 are constructed separately along the circumferential direction, and on socket cover 27 of receptacle 20, plural sets 28a-28e of plural key grooves 28 separated along the circumferential direction, that plural pin plug key protrusions 15 fit into each set, are arranged with shifting along the circumferential direction. Receptacle 20 can be substituted by a socket plug 30.
    Type: Application
    Filed: May 13, 2011
    Publication date: October 11, 2012
    Applicants: NTT FACILITIES, INC., FURUKAWA POWER COMPONENTS, INC.
    Inventors: Daisuke Yamada, Mikio Yamasaki, Takashi Takeda, Akira Matsumoto