Patents by Inventor Naosuke Nojima

Naosuke Nojima 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).

  • Exhaust gas recirculation valve
    Patent number: 7992550
    Abstract: An inner surface of an exhaust gas passage 22 of an EGR valve 11 is coated with Teflon coating 31 and a surface of a valve rod 25 is coated with a film 32 of chromium plating.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: August 9, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Haruo Watanuki, Satoru Hasegawa, Naosuke Nojima, Sotsuo Miyoshi
  • EXHAUST GAS RECIRCULATION VALVE DEVICE
    Publication number: 20110094481
    Abstract: In an exhaust gas recirculation valve device, a sealing member 15 supported by a plug 15c is disposed between a portion of a housing 1 on an exhaust gas passage side of a bearing 8, and a valve shaft 7.
    Type: Application
    Filed: June 24, 2009
    Publication date: April 28, 2011
    Inventors: Takuro Zui, Naosuke Nojima, Haruo Watanuki, Sotsuo Miyoshi
  • EXHAUST GAS RECIRCULATION VALVE
    Publication number: 20100065027
    Abstract: An inner surface of an exhaust gas passage 22 of an EGR valve 11 is coated with Teflon coating 31 and a surface of a valve rod 25 is coated with a film 32 of chromium plating.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 18, 2010
    Inventors: Haruo Watanuki, Satoru Hasegawa, Naosuke Nojima, Sotsuo Miyoshi
  • EXHAUST GAS RECIRCULATION VALVE
    Publication number: 20100044614
    Abstract: A surface of a valve rod of an EGR valve is plated with chromium plating, and then the surface of the chrome plating is polished to the maximum height surface roughness of 1.0 ?m to 3.2 ?m.
    Type: Application
    Filed: October 1, 2007
    Publication date: February 25, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Haruo Watanuki, Satoru Hasegawa, Naosuke Nojima, Sotsuo Miyoshi