Patents by Inventor Tetsuya Waku

Tetsuya Waku 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).

  • Bed apparatus
    Patent number: 5862551
    Abstract: A bed frame is provided with a base plate. The base plate has a fixed base plate portion secured to the bed frame, a hip plate portion and a back plate portion sequentially and rotatively connected to an end of said fixed base plate portion and a first leg plate portion and a second leg plate portion sequentially and rotatively connected to another end. The back plate portion is arranged to be raised by a back elevating mechanism. When the back plate portion has been raised, the hip plate portion is moved in synchronization with the rotation in the raising direction. At this time, since the back plate portion is raised to make an angle larger than that of the hip plate portion, the hip of a user is not held between the fixed base plate portion and the back plate portion.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: January 26, 1999
    Assignee: France Bed Co., Ltd.
    Inventors: Yoshio Oguma, Akihiro Midorikawa, Tetsuya Waku