Patents by Inventor Isao Hiyashi

Isao Hiyashi 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: 5006011
    Abstract: The present invention relates to a frame for installing wooden bricks in which plural sections for holding the wooden bricks are arranged so as to correspond to the finished arrangement of the wooden bricks, a pederal for fixing the wooden bricks is prepared in each holding section, and a piece of elastic protrusion is protruded from a section wall of each holding section into an oblique downward direction in the section,or a frame for installing wooden bricks in which, in addition to the above, on a wide joint means between each holding section, plural elastic projections having the same level to the upper surface of the wooden bricks the upper end of which is held in the holding section are prepared,by holding the wooden bricks which have corresponding size and shape to the holding sections and by installing the wooden bricks on sidewalks and the like, the pavement of wooden bricks having smooth road may be very easily obtained.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: April 9, 1991
    Inventor: Isao Hiyashi