Patents by Inventor Shoji ISOGAI

Shoji ISOGAI 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).

  • Solenoid and hydraulic pressure control apparatus having the same
    Patent number: 9583248
    Abstract: In a solenoid of a hydraulic pressure control apparatus, a region adjacent to an oil flow guide portion of a stopper breathing passage is formed in a magnetism application region, through which a leakage magnetic flux leaking from a magnetic circuit at a time of turning on of a coil passes. Thereby, magnetic foreign objects made of iron or iron containing material are magnetically attracted to the leakage magnetic flux, so that intrusion of the foreign objects from an outside of the solenoid into a second volume variable chamber through the stopper breathing passage is limited.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 28, 2017
    Assignees: DENSO CORPORATION, NIPPON SOKEN, INC., HAMANAKODENSO CO., LTD.
    Inventors: Shota Toda, Shuhei Oe, Shoji Isogai, Motoyoshi Ando, Takao Ishida, Kengo Suzuki
  • SOLENOID AND HYDRAULIC PRESSURE CONTROL APPARATUS HAVING THE SAME
    Publication number: 20150279538
    Abstract: In a solenoid of a hydraulic pressure control apparatus, a region adjacent to an oil flow guide portion of a stopper breathing passage is formed in a magnetism application region, through which a leakage magnetic flux leaking from a magnetic circuit at a time of turning on of a coil passes. Thereby, magnetic foreign objects made of iron or iron containing material are magnetically attracted to the leakage magnetic flux, so that intrusion of the foreign objects from an outside of the solenoid into a second volume variable chamber through the stopper breathing passage is limited.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Shota TODA, Shuhei OE, Shoji ISOGAI, Motoyoshi ANDO, Takao ISHIDA, Kengo SUZUKI