Patents by Inventor Masayo Hada

Masayo Hada 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 connector with ion exchange hardening
    Patent number: 5295213
    Abstract: A ferrule for an optical connector is of glass which is strengthened by ion-exchange.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: March 15, 1994
    Assignees: NEC Corporation, Nippon Electric Glass Co., Ltd.
    Inventors: Tetsuji Ueda, Kazuhiko Kurata, Nobuo Funabiki, Masayo Hada