Patents by Inventor Tomoyoshi Minami

Tomoyoshi Minami 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).

  • Electromagnetic valve device
    Patent number: 6732999
    Abstract: In an electromagnetic valve device having a valve housing, a valve member slidably accommodated in the valve housing to control oil communications among ports formed in the valve housing, a spring biasing the valve member, a stopper retaining the spring and an electromagnetic drive member for generating, when energized, a driving force to displace the valve member against a biasing force of the spring, the valve housing is provided at an axial end with a small diameter portion whose wall thickness is thinner and the stopper is press fitted substantially to an inner circumferential surface of the small diameter portion so that radially outward resilient deformation of the small diameter portion is larger than radially inward resilient deformation of the stopper.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: May 11, 2004
    Assignee: Denso Corporation
    Inventors: Noboru Matsusaka, Tomoyoshi Minami, Kenichi Oishi
  • Electromagnetic valve device
    Publication number: 20030038260
    Abstract: In an electromagnetic valve device having a valve housing, a valve member slidably accommodated in the valve housing to control oil communications among ports formed in the valve housing, a spring biasing the valve member, a stopper retaining the spring and an electromagnetic drive member for generating, when energized, a driving force to displace the valve member against a biasing force of the spring, the valve housing is provided at an axial end with a small diameter portion whose wall thickness is thinner and the stopper is press fitted substantially to an inner circumferential surface of the small diameter portion so that radially outward resilient deformation of the small diameter portion is larger than radially inward resilient deformation of the stopper.
    Type: Application
    Filed: August 21, 2002
    Publication date: February 27, 2003
    Inventors: Noboru Matsusaka, Tomoyoshi Minami, Kenichi Oishi