Patents by Inventor Katsumi Ohmiya

Katsumi Ohmiya 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).

  • Flanged parts producing method, and heat-treating device and heat treating method therefor
    Patent number: 7147731
    Abstract: A spacer 44 is inserted between an upper end face 44a of a contact column 40, and a lower face of a flange 14. The flange 14 is supported at plural positions by supporting columns 42. In heating a shoulder portion 16 to a hardening temperature, an electroconductive member 56 is placed close to the shoulder portion 16, and an AC current having a frequency which will cause mutual attraction between the current flowing through the elctroconductive member 56 and the current flowing through the shoulder portion 16 is applied to flow through the electroconductive member 56. The shoulder portion 16 having been heated to the hardening temperature is quenched by ejecting a liquid coolant through ejection outlets of a cooling jacket.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: December 12, 2006
    Assignee: Neturen Co., Ltd.
    Inventors: Yoshimasa Tanaka, Katsumi Ohmiya, Yoshiki Seto, Yoichi Mori
  • Flanged parts producing method, and heat-treating device and heat treating method therefor
    Publication number: 20040169321
    Abstract: A spacer 44 is inserted between an upper end face 44a of a contact column 40, and a lower face of a flange 14. The flange 14 is supported at plural positions by supporting columns 42. In heating a shoulder portion 16 to a hardening temperature, an electroconductive member 56 is placed close to the shoulder portion 16, and an AC current having a frequency which will cause mutual attraction between the current flowing through the elctroconductive member 56 and the current flowing through the shoulder portion 16 is applied to flow through the electroconductive member 56. The shoulder portion 16 having been heated to the hardening temperature is quenched by ejecting a liquid coolant through ejection outlets of a cooling jacket.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 2, 2004
    Inventors: Yoshimasa Tanaka, Katsumi Ohmiya, Yoshiki Seto, Yoichi Mori