Patents by Inventor Katsue Nakata

Katsue Nakata 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).

  • Laser diode device having a protective layer on its light-emitting end face
    Patent number: 5355385
    Abstract: A laser diode in which a laser diode chip having a light-emitting end face is resin-encapsulated by means of an encapsulating resin layer constituted by an epoxy-based resin or the like. An end-face-breakage preventing layer formed of a silicon-based resin having a high coefficient of light absorption in the wavelength band of a laser beam and a high bond energy is formed on the light-emitting end face. The end-face-breakage preventing layer 10 has a thickness of approximately 20 to 30 .mu.m.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: October 11, 1994
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Akira Amano, Yoichi Shindo, Nobutaka Suganuma, Katsue Nakata