Patents by Inventor Norio Otsuka

Norio Otsuka 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).

  • Disposable surgical blade holder
    Patent number: D466214
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: November 26, 2002
    Assignee: Feather Safety Razor Co., Ltd.
    Inventor: Norio Otsuka
  • Surgical knife depth gauge
    Patent number: D364683
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: November 28, 1995
    Assignee: Feather Safety Razor Co., Ltd.
    Inventor: Norio Otsuka