Patents by Inventor Shinjiro Yano

Shinjiro Yano 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).

  • Light triggered triac device and method of driving the same
    Patent number: 5345094
    Abstract: Disclosed is a semiconductor device comprising an output Triode AC switch with a vertical structure, which is provided in a silicon substrate and has a gate, a first output terminal and a second output terminal, and an input/driving photo Triode AC switch, which is provided in the substrate and has a light-receiving portion, a first terminal connected to the gate and a second terminal connected to the second output terminal. The output Triode AC switch with a vertical structure is turned on when light is input to the photo Triode AC switch.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: September 6, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasunori Usui, Shinjiro Yano
  • Photo-semiconductor device with a zero-cross function
    Patent number: 5138415
    Abstract: A photo-semiconductor device with a zero-cross function comprises a photo-trigger thyristor (11) which is controlled by an optical trigger signal, a MOSFET (13), and a Zener diode (14) formed in a monolithic manner in the same semiconductor substrate (16). A current path between the source and drain of the MOSFET (13) is connected between the gate and cathode of the photo-trigger thyristor (11) This MOSFET (13) is provided to control the gate sensitivity of the photo-trigger thyristor (11). The Zener diode (14) has its anode connected to the cathode of the photo-trigger thyristor (11) and its cathode connected to the gate of the MOSFET (13). This Zener diode (14) protects a gate insulating film (19) of the MOSFET (13) from dielectric breakdown. A light receiving portion (37) is provided in the Zener diode (14) and serves as a photodiode when the optical trigger signal is applied thereto.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: August 11, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Shinjiro Yano
  • Semiconductor element
    Patent number: D444132
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: June 26, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaaki Iwanishi, Toshihisa Inoue, Kazuhiko Kurahashi, Kenji Suzuki, Shinjiro Yano