Patents by Inventor Goto Hideki

Goto Hideki 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 diode
    Patent number: 5619518
    Abstract: The disclosure described a semiconductor laser diode comprising at least a first clad layer, an active layer and a second clad layer disposed in this order on the substrate, anda buried layer for current blocking disposed at both sides in the cavity direction of the active layer,at least one of the first clad layer and second clad layer having at least one superlattice in the direction parallel with the substrate, and the average refractive index (nc1) of the first clad layer, the refractive index (na) of the active layer and the average refractive index (nc2) of the second clad layer satisfying the following equations.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: April 8, 1997
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hideyoshi Horie, Yuichi Inoue, Kenji Shimoyama, Nobuyuki Hosoi, Goto Hideki