Patents by Inventor Takashi Yashima

Takashi Yashima 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).

  • Floor working machine with a working implement mounted on a self-propelled vehicle for acting on floor
    Patent number: 6830120
    Abstract: A floor working machine including a self-propelled vehicle body including a working implement for treating a floor surface; U-turn control means for causing the self-propelled vehicle body to make a U-turn automatically to adjust the working implement to a work line adjacent a work line treated before said U-turn; spin turn control means for causing the self-propelled vehicle body to make a spin turn automatically to align said working implement to a work line treated before the spin turn; and running control means for automatically controlling said U-turn control means and the spin turn control means in response to input signals for causing the self-propelled vehicle body to make selectively a U-turn under control of the U-turn control means and a spin turn under control of the spin turn control means.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: December 14, 2004
    Assignee: Penguin Wax Co., Ltd.
    Inventors: Takashi Yashima, Yasuhiro Ueda