Patents by Inventor Rumi Tanaka

Rumi Tanaka 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).

  • Wrist watch
    Patent number: D455971
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: April 23, 2002
    Assignee: Seiko Kabushiki Kaisha
    Inventors: Akihiko Yamamoto, Rumi Tanaka
  • Watchcase with watchband
    Patent number: D378898
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: April 22, 1997
    Assignee: Seiko Instruments Inc.
    Inventors: Yukiko Hayashi, Rumi Tanaka
  • Watch case with band
    Patent number: D431476
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 3, 2000
    Assignee: Seiko Kabushiki Kaisha
    Inventor: Rumi Tanaka