Patents by Inventor Tadao Yamato

Tadao Yamato 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).

  • Patent number: 7481193
    Abstract: An engine comprises a timer (20), which is provided with a temperature-sensing operation mechanism (7). During a cold-starting term, a downstream interlocking portion (2) advances by an advancing operation of the timer (20) based on an operation that the temperature-sensing operation mechanism (7) makes upon sensing the temperature. While the engine is warm, the downstream interlocking portion (2) cancels an advancement by an advancement-cancellation operation of the timer (20) based on another operation that the temperature-sensing operation mechanism (7) makes upon sensing the temperature. The engine oil (56) within the engine is supplied from the oil-supply port (58) to the timer (20), thereby enabling the engine oil (56) in liquid state to contact the temperature-sensing operation mechanism (7).
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: January 27, 2009
    Assignee: Kubota Corporation
    Inventors: Masayasu Takami, Tadao Yamato, Tetsuya Kosaka, Yoshikazu Takemoto
  • Publication number: 20070227502
    Abstract: An engine comprises an upstream interlocking portion (1) near a crank shaft, which is interlockingly connected through a timer (20) to a downstream interlocking portion (2). The timer (20) is provided with a temperature-sensing operation means (7). During a cold-starting term while the temperature-sensing operation means (7) senses a temperature of a value less than a predetermined one, the downstream interlocking portion (2) advances by an advancing operation of the timer (20) based on an operation that the temperature-sensing operation mean (7) makes upon sensing the temperature. While the engine is warm, the temperature-sensing operation means (7) senses a temperature of a value not less than the predetermined one, the downstream interlocking portion (2) cancels an advancement by an advancement-cancellation operation of the timer (20) based on another operation that the temperature-sensing operation mean (7) makes upon sensing the temperature.
    Type: Application
    Filed: March 14, 2007
    Publication date: October 4, 2007
    Applicant: KUBOTA CORPORATION
    Inventors: Masayasu TAKAMI, Tadao YAMATO, Tetsuya KOSAKA, Yoshikazu TAKEMOTO