Patents by Inventor Toshihiko Atsumi

Toshihiko Atsumi 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).

  • Control device for internal combustion engine
    Patent number: 8909455
    Abstract: A control device for an internal combustion engine including a camshaft of the internal combustion engine; a plurality of plane cam shape portions; at least one transitional shape portion; a cam switching mechanism; a cam position sensor; and a control section. The plane cam shape portions, at the camshaft, have valve lift characteristics different from each other, have respective cam faces parallel to a rotation axis of the camshaft, and are spaced apart from each other. The transitional shape portion is between two adjacent ones of the plane cam shape portions and has a curved cam face which connects the cam faces of the two plane cam shape portions. The cam switching mechanism switches between the valve lift characteristics for an intake valve by selecting one of the plane cam shape portions via the transitional shape portion.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 9, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Isato Taki, Kenichi Osonoe, Yu Matsui, Toshihiko Atsumi
  • CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20130319356
    Abstract: A control device for an internal combustion engine including a camshaft of the internal combustion engine; a plurality of plane cam shape portions; at least one transitional shape portion; a cam switching mechanism; a cam position sensor; and a control section. The plane cam shape portions, at the camshaft, have valve lift characteristics different from each other, have respective cam faces parallel to a rotation axis of the camshaft, and are spaced apart from each other. The transitional shape portion is between two adjacent ones of the plane cam shape portions and has a curved cam face which connects the cam faces of the two plane cam shape portions. The cam switching mechanism switches between the valve lift characteristics for an intake valve by selecting one of the plane cam shape portions via the transitional shape portion.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 5, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Isato TAKI, Kenichi OSONOE, Yu MATSUI, Toshihiko ATSUMI
  • Infrared oil heater
    Patent number: D606637
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: December 22, 2009
    Assignee: Shizuoka Seiki Co., Ltd.
    Inventors: Hiroaki Wakabayashi, Toshihiko Atsumi, Shougo Yoshioka