Patents by Inventor Seiji Chonan

Seiji Chonan 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).

  • Publication number: 20030163322
    Abstract: The small-sized braille letter reading apparatus of the present invention is capable of reducing a manufacturing cost and increasing reliability and durability of apparatus. The apparatus comprises: a pressure sensor being capable of simultaneously contacting all braille points included in at least one of two braille lines constituting one braille letter, the pressure sensor generating output signals corresponding to the detected braille points; and an analyzing section for analyzing data of the output signals and converting the braille letter into an ordinary letter when the pressure sensor scans the two braille lines of the braille letter.
    Type: Application
    Filed: February 27, 2003
    Publication date: August 28, 2003
    Inventors: Tatsuo Nishizawa, Seiji Chonan, Mami Tanaka