Patents by Inventor Kazumi Okuzumi

Kazumi Okuzumi 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).

  • Patent number: 5129803
    Abstract: A concrete leveling machine is provided which propels itself over the surface of laid concrete and by use of rotating augers or oscillating stabilizers and a temper, levels and finishes the surface to a prescribed level and condition. A laser reference beam transmitted over the surface is detected by detectors attached to the leveling section of the machine and deviation of the level of the detectors from a reference level is adjusted so that the leveling section is also brought to a level required to produce the desired surface level. The machine is turned by a turntable integral with the main body which lifts the machine allowing it to turn by differential drive to its drive wheels.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: July 14, 1992
    Assignee: Shimizu Construction Co., Ltd.
    Inventors: Hajime Nomura, Yasuo Kajioka, Tomio Komine, Akira Okada, Tomoo Shokawa, Toshio Kumagai, Kazumi Okuzumi