Patents by Inventor Nobuo Tokuda

Nobuo Tokuda 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: 5212567
    Abstract: A magnifying display apparatus for displaying enlarged images of characters or the like comprises a photoelectric-converting reading unit including a body and an optical system disposed in the body and having a light-path inversion prism, a magnifier lens system, an iris, an imaging device and illuminating lamp. The apparatus further comprises a controller connected to the reading unit and including a power supply circuit for the reading unit and also a control circuit for controlling the conversion of the output from the imaging device into an image output. The apparatus also comprises a display unit such as a television separably connected to the controller. A recess or a protrusion is formed on a front upper portion of the body at a position corresponding to the light-path inverting prism so as to be sensible by a user's finger, thus serving as an index of the portion of the original to be magnified and displayed.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: May 18, 1993
    Assignee: Neitz Instruments Co., Ltd.
    Inventors: Isao Kawai, Toshiyuki Taguchi, Tetsuo Hayakawa, Nobuo Tokuda, Sanyo Nagayama