Patents by Inventor Masaharu Izuno

Masaharu Izuno 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: 5767532
    Abstract: In the file retrieval managing system, each shelf board (5) has a retrieval plate (1) comprising a plurality of optical guide plates, indicating visible light emitting elements, retrieving light emitting elements, and light receiving elements. A file (9) stored on the retrieval plate is provided with an identification board (2) which emits from its light emitting portion a light beam incident from the retrieving light emitting element at a corresponding position into each optical guide plate as an output light beam having an optical pattern peculiar to the file. The output light beam is converted by the light receiving element at the end of the optical guide plate into an electric signal to obtain detected data. Upon retrieval of the file, retrieval data of a desired file is inputted.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: June 16, 1998
    Assignee: Itoki Crebio Corporation
    Inventors: Mitsuharu Nishiguchi, Masaharu Izuno