Patents by Inventor Yoshio Simoida

Yoshio Simoida 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).

  • On-chip temperature detection device
    Patent number: 7279954
    Abstract: An on-chip temperature detection device includes: a bipolar type power transistor; a mirror transistor in which a collector current, which is proportional to a collector current of the power transistor, flows; a current detection section that detects the collector current of the mirror transistor; a voltage detection section that detects a voltage between a base and an emitter of the power transistor; and a calculation section that calculates a chip temperature of the power transistor, based upon the collector current of the mirror transistor detected by the current detection section, and upon the voltage between the base and the emitter of the power transistor detected by the voltage detection section.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: October 9, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kraisorn Throngnumchai, Yoshio Simoida
  • On-chip temperature detection device
    Publication number: 20050046463
    Abstract: An on-chip temperature detection device includes: a bipolar type power transistor; a mirror transistor in which a collector current, which is proportional to a collector current of the power transistor, flows; a current detection section that detects the collector current of the mirror transistor; a voltage detection section that detects a voltage between a base and an emitter of the power transistor; and a calculation section that calculates a chip temperature of the power transistor, based upon the collector current of the mirror transistor detected by the current detection section, and upon the voltage between the base and the emitter of the power transistor detected by the voltage detection section.
    Type: Application
    Filed: October 12, 2004
    Publication date: March 3, 2005
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kraisorn Throngnumchai, Yoshio Simoida
  • On-chip temperature detection device
    Patent number: 6812722
    Abstract: An on-chip temperature detection device includes: a bipolar type power transistor; a mirror transistor in which a collector current, which is proportional to a collector current of the power transistor, flows; a current detection section that detects the collector current of the mirror transistor; a voltage detection section that detects a voltage between a base and an emitter of the power transistor; and a calculation section that calculates a chip temperature of the power transistor, based upon the collector current of the mirror transistor detected by the current detection section, and upon the voltage between the base and the emitter of the power transistor detected by the voltage detection section.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: November 2, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kraisorn Throngnumchai, Yoshio Simoida
  • On-chip temperature detection device
    Publication number: 20020140447
    Abstract: An on-chip temperature detection device includes: a bipolar type power transistor; a mirror transistor in which a collector current, which is proportional to a collector current of the power transistor, flows; a current detection section that detects the collector current of the mirror transistor; a voltage detection section that detects a voltage between a base and an emitter of the power transistor; and a calculation section that calculates a chip temperature of the power transistor, based upon the collector current of the mirror transistor detected by the current detection section, and upon the voltage between the base and the emitter of the power transistor detected by the voltage detection section.
    Type: Application
    Filed: March 6, 2002
    Publication date: October 3, 2002
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Kraisorn Throngnumchai, Yoshio Simoida