Patents by Inventor Michio Yamanaka

Michio Yamanaka 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).

  • Portable game machine
    Patent number: D449655
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: October 23, 2001
    Assignee: Konami Corporation
    Inventor: Michio Yamanaka
  • Hinge for furniture
    Patent number: D633773
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: March 8, 2011
    Assignee: Sugatsune Kogyo Co., Ltd.
    Inventor: Michio Yamanaka
  • Portable vacuum bottle
    Patent number: D378652
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: April 1, 1997
    Assignee: Nippon Sanso Corporation
    Inventors: Michio Yamanaka, Takashi Kondo