Patents by Inventor Koichi Imamaka

Koichi Imamaka 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).

  • Semiconductor luminous element with light reflection and focusing configuration
    Patent number: 5528057
    Abstract: A luminous element with a high luminous efficiency comprising means for condensing light towards an exit window of the element. Specifically, the luminous element condenses light generated at the luminous area of the luminous element by an optically reflective surface having oblique concentric surface portions.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: June 18, 1996
    Assignee: Omron Corporation
    Inventors: Masashi Yanagase, Hideaki Watanabe, Koichi Imamaka