Patents by Inventor Shigehiro Yamaki

Shigehiro Yamaki 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).

  • Variable air intake control system
    Patent number: 7503303
    Abstract: A variable air intake control system includes first and second variable intake control valves, a vacuum tank, actuators, a one-way valve and a controller. The controller selectively is configured to control the first and second actuators to offset operating timings of the first and second variable intake control valves so as to suppress the noise in the one-way valve, when the first and second variable intake control valves are switched from a first operating state in which the first and second variable intake control valves are both in one of the open and closed states to a second operating state in which the first and second variable intake control valves are both in one of the open and closed states that is opposite to the first operating state.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 17, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Haruki Morita, Kazuyuki Kogiso, Yoshinori Yakabe, Kazuhiro Fujiwara, Shigehiro Yamaki
  • VARIABLE AIR INTAKE CONTROL SYSTEM
    Publication number: 20080098975
    Abstract: A variable air intake control system includes first and second variable intake control valves, a vacuum tank, actuators, a one-way valve and a controller. The controller selectively is configured to control the first and second actuators to offset operating timings of the first and second variable intake control valves so as to suppress the noise in the one-way valve, when the first and second variable intake control valves are switched from a first operating state in which the first and second variable intake control valves are both in one of the open and closed states to a second operating state in which the first and second variable intake control valves are both in one of the open and closed states that is opposite to the first operating state.
    Type: Application
    Filed: October 9, 2007
    Publication date: May 1, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Haruki MORITA, Kazuyuki KOGISO, Yoshinori YAKABE, Kazuhiro FUJIWARA, Shigehiro YAMAKI