Patents by Inventor Syuuichi Ishiwa

Syuuichi Ishiwa 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).

  • Structure of an exhaust manifold branch collecting portion
    Patent number: 6918246
    Abstract: A structure of an exhaust manifold branch collecting portion includes a double collecting pipe 21 for collecting a plurality of exhaust openings 11A, 17A. The double collecting pipe 21 is comprised of an inner pipe 21-1 and an outer pipe 21-2, which are connected integrally to each other. In a space formed between the inner pipe 21-1, the outer pipe 21-2, and a ring-shaped stainless steel cushion member 22-2, a tubular cushion member 22-1, which is thermally expanded and foamed, is arranged as a restricted cushion structure.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: July 19, 2005
    Assignees: Yumex Corporation, Nichias Corporation
    Inventors: Yasuhiko Fukumoto, Katsumi Tateiwa, Takashi Yasuda, Kazuya Tominaga, Hideaki Shimamoto, Hideaki Madono, Syuuichi Ishiwa
  • Structure of an exhaust manifold branch collecting portion
    Publication number: 20030182937
    Abstract: A structure of an exhaust manifold branch collecting portion includes a double collecting pipe 21 for collecting a plurality of exhaust openings 11A, 17A. The double collecting pipe 21 is comprised of an inner pipe 21-1 and an outer pipe 21-2, which are connected integrally to each other. In a space formed between the inner pipe 21-1, the outer pipe 21-2, and a ring-shaped stainless steel cushion member 22-2, a tubular cushion member 22-1, which is thermally expanded and foamed, is arranged as a restricted cushion structure.
    Type: Application
    Filed: March 25, 2003
    Publication date: October 2, 2003
    Applicants: YUMEX CORPORATION, NICHIAS CORPORATION
    Inventors: Yasuhiko Fukumoto, Katsumi Tateiwa, Takashi Yasuda, Kazuya Tominaga, Hideaki Shimamoto, Hideaki Madono, Syuuichi Ishiwa