Patents by Inventor Yashuhiro Ando

Yashuhiro Ando 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).

  • Optical fiber connector unit and optical fiber connector
    Patent number: 5436995
    Abstract: An optical fiber connector unit is composed of a ferrule including a first flange and a second flange formed to have a greater diameter than other portions, a stopring provided outside of the ferrule, having on its inner peripheral surface a first step and a second step, a coil spring having one end contacting with the first flange end face and the other end contacting with the first step end face, its tip exerting a spring force in an axial direction towards outside from the stopring; and a locating member provided between the stopring and the ferrule and having a first stopper contacting with the second step end face and a second stopper contacting with the second flange end face. The optical fiber connector using the unit can easily be assembled.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: July 25, 1995
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Takashi Yoshizawa, Shigemitsu Oguchi, Akira Nagayama, Kazunori Kanayama, Kuniharu Kato, Yashuhiro Ando