Patents by Inventor Shigemi Matsuzawa

Shigemi Matsuzawa 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).

  • Flatness integrating/recording apparatus
    Patent number: 4922752
    Abstract: A flatness integrating/recording apparatus of the present invention includes a car than can travel on a road surface, a device associated with the wheel of the car for calculating the travelled distance of the car, and an optical road surface irregularities measuring device provided on the car. The data obtained from these devices is processed by first and second signal processing portions so as to calculate the travelled distance and the irregularities of the road surface. The data output from the first and second signal processing portions is supplied to a display device and to a data storage portion. A set value inputting device for setting measuring conditions is provided in the tractor portion of the car. The output of the set value inputting device is supplied to the second signal processing portion.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: May 8, 1990
    Assignee: Tokyo Keiki Co., Ltd.
    Inventors: Masahiro Kitazume, Makoto Aoki, Hiroshi Nogi, Kazuya Homma, Shigemi Matsuzawa