Patents by Inventor Astushi Nishijoh

Astushi Nishijoh 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 valve device
    Patent number: 5382933
    Abstract: Disclosed is a solenoid valve device having a bobbin assembly 3 including an outer yoke 105 as a magnetic circuit, a solenoid coil 20 positioned within the outer yoke 105, and a connector pin 107 for supplying the electric current to the solenoid coil 20. The bobbin assembly 3, which is molded of at least two layers of resins, has an inner resin section 120 for integrally setting at least the outer yoke 105 and the solenoid coil 20 together, and an outer resin section 125 to enclose the inner resin section 120, forming the outer surface of the bobbin assembly 3. This inner resin section 120 is formed of a resin having a higher coefficient of thermal expansion than the outer resin section 125, while the outer resin section 125 is formed of a resin having a higher dimensional stability than the inner resin section 120.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: January 17, 1995
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Hirotaka Nakamura, Astushi Nishijoh, Shigeki Tsuchiya, Yoshiaki Hirobe