Patents by Inventor Yasuaki Ohkubo

Yasuaki Ohkubo 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: 7559700
    Abstract: A shading member-equipped optical connector plug is compact while having the compatibility to engage existing connector receptacles. The connector plug includes a shading member having a shutter housing enclosing a plug frame slidably on an outside thereof. The shutter housing is inserted into an engagement opening of a connector receptacle to be engaged when the shading member-equipped optical connector is connected. The shading member also has a shutter one end of which is supported by the shutter housing at a front part of the housing and another end of which is urged by an elastic force and closes so as to shade the optical fibers at a position in front of the ferrule, and an elastic member disposed between the plug frame and the shutter housing that urges the shutter housing forward.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: July 14, 2009
    Assignee: Honda Tsushin Kogyo Co., Ltd.
    Inventors: Toshiaki Eguchi, Naohide Goto, Yasuaki Ohkubo
  • Publication number: 20080247709
    Abstract: A compact, highly compatible shading member-equipped optical connector plug that makes the optical connector plug compact while having the compatibility to engage existing connector receptacles. The shading member includes a shutter housing enclosing a plug frame slidably on an outside thereof, and inserted into an engagement opening of a connector receptacle to be engaged when the shading member-equipped optical connector is connected, a shutter one end of which is supported by the shutter housing at a front part of the housing and another end of which is urged by an elastic force and closes so as to shade the optical fibers at a position in front of the ferrule, and an elastic member disposed between the plug frame and the shutter housing that urges said shutter housing forward.
    Type: Application
    Filed: December 18, 2007
    Publication date: October 9, 2008
    Inventors: Toshiaki Eguchi, Naohide Goto, Yasuaki Ohkubo
  • Patent number: 6776535
    Abstract: A plug frame for an optical connector component comprising a ferrule for receiving an end portion of a core optical fiber of a fiber optic cable and a plug frame for floatingly supporting the ferrule. The plug frame is configured as a one-piece component. This allows reduction of the number of component parts and assembling steps, simplification of the assembling operations and reduction of the manufacturing cost.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: August 17, 2004
    Assignees: Hirose Electric Co., Ltd., Nippon Telegraph and Telephone Corporation, Honda Tsushin Kogyo Co., Ltd., Sanwa Denki Kogyo Co., Ltd.
    Inventors: Yukinori Miyake, Takumi Yoshida, Shin Sumida, Shuichi Yanagi, Yasuaki Ohkubo, Toshiaki Nakano, Yuji Shinagawa, Tatsuhito Shinozaki
  • Publication number: 20020159717
    Abstract: Disclosed is a plug frame 33 for an optical connector component 31 comprising a ferrule 2 for receiving an end portion of a core optical fiber of a fiber optic cable and a plug frame 33 for floatingly supporting the ferrule 2. According to the present invention the plug frame 33 is configured as a one-piece component. This allows reduction of the number of component parts and assembling steps, simplification of the assembling operations and reduction of the manufacturing cost.
    Type: Application
    Filed: March 1, 2002
    Publication date: October 31, 2002
    Applicant: Hirose Electric Co., Ltd
    Inventors: Yukinori Miyake, Takumi Yoshida, Shin Sumida, Shuichi Yanagi, Yasuaki Ohkubo, Toshiaki Nakano, Yuji Shinagawa, Tatsuhito Shinozaki
  • Patent number: 6382839
    Abstract: Disclosed is an improved adapter for end-to-end abutting and connecting the ferrules of confronting optical cables. It uses resilient means which cooperates with the collars of the ferrules to cause the confronting ferrules to abut on each other as a counter action of the stretching or compressing of the resilient means, thus assuring that the confronting optical cables be put in good connection. The adapter is appropriate for mounting on a printed circuit board, and is simple in structure, small in size and less expensive.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: May 7, 2002
    Assignees: NEC Corporation, Honda Tsushin Kogyo Co., Ltd.
    Inventors: Toshiaki Eguchi, Yasuaki Ohkubo, Seigo Takahashi