Patents by Inventor Masayuki Siga

Masayuki Siga 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 laser module and positioning method thereof
    Patent number: 5074682
    Abstract: A semiconductor laser module comprises a semiconductor laser chip for emitting a laser beam, a collimator lens for collimating the laser beam to a collimated beam, a focussing lens for focussing the collimated beam, and an optical fiber having an inclined input face to which the laser beam from the focussing lens in input. The focussing lens is arranged in such a manner that the optical axis of the collimated beam incident on the focussing lens is deviated from a center axis of the focussing lens, and the optical fiber is arranged in parallel to the collimated beam in such a manner that the laser beam is incident on an optical axis of the optical fiber.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: December 24, 1991
    Assignee: Fujitsu Limited
    Inventors: Saburo Uno, Takayuki Masuko, Kaoru Moriya, Masayuki Siga