Patents by Inventor Ichizi Funazaki

Ichizi Funazaki 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).

  • Optical automatic levelling apparatus
    Patent number: 4854704
    Abstract: A light source, such as a laser diode, is positioned on a mount bed facing upwardly. A lens device is supported a support member extending upwardly from the mount bed. The lens device consists of a concave lens and convex lens and is provided to convert the rays of light emitted by the light source to parallel rays of light perpendicular to a true horizontal plane. The concave lens is suspended above the light source by plural wires from the support member. The convex lens is supported above the concave lens by at least one arm attached to the support member. A motorized rotatable reflector device is mounted on the support member above the lens device and reflects the parallel rays of light therefrom in a horizontal direction.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Sokkisha Co., Ltd.
    Inventors: Ichizi Funazaki, Haruo Tani