Patents by Inventor Hisae Takahashi

Hisae Takahashi 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).

  • Luminous indicating device
    Patent number: 4570207
    Abstract: A luminous indicating device and comprising at least one luminous block adapted to be buried in a road surface so that a radiating surface thereof is flush with the road surface. The luminous block is formed of a composite material block and at least one luminous element which is formed of a transparent material block and a light source buried at one end portion of the block to radiate light from the other end surface of the block. The luminous block is buried in the composite material block so that the other end surface of said transparent material block is flush with a top surface of the composite material block.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: February 11, 1986
    Assignees: Sho-Bond Construction Co., Ltd., Hitachi Heating Appliances Co., Ltd.
    Inventors: Hisae Takahashi, Tatsuro Yoshinaga, Akio Mitomo