Patents by Inventor Shinichi Sanda

Shinichi Sanda 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 light emitting element, semiconductor light emitting device using same element
    Patent number: 5990497
    Abstract: A semiconductor light emitting element exhibiting a characteristic of deflected luminous intensity distribution, a semiconductor light emitting device capable of making, even when the element is off the center, a luminous center close to the center, and an element scribing method having a high element separation rate without causing a crack and chipping of pellet edges. The semiconductor light emitting element involves the use of a scribed pellet 10 into which a wafer including a semiconductor layer such as a luminous layer that is stacked on a compound semiconductor substrate inclined at 5.degree. through 20.degree. to a surface (100) in a orientation [011], is subjected to an element separation process by a scribing method.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: November 23, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takanobu Kamakura, Takafumi Nakamura, Makoto Yamamura, Yoshio Ariizumi, Kazuhiro Tamura, Shinichi Sanda, Takumi Komoto, Yukio Watanabe