Patents by Inventor Masaru Inagaki

Masaru Inagaki 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).

  • Telephone handset with electrostatic discharge prevention
    Patent number: 5067151
    Abstract: A telephone set includes a base and a handset which are interconnected by a cord terminated in a modular plug and jack, at least on the handset end of the cord. The plug is recessed far enough in the handset to preclude an electrostatic coupling between a human hand holding the handset and the plug and jack. Also, the recessing is far enough to keep the plug from becoming dislodged from the jack by an accidental movement of a locking leaf spring or plug associated with said plug.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: November 19, 1991
    Assignee: NEC Corporation
    Inventors: Masaru Inagaki, Toshio Matsushita
  • Display pager
    Patent number: D343618
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: January 25, 1994
    Assignee: NEC Corporation
    Inventors: Sigeki Hayasaka, Masaru Inagaki, Tetsuya Nagata