Patents by Inventor Yasuhiro Tsutiya

Yasuhiro Tsutiya 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).

  • Steering wheel
    Patent number: 4741223
    Abstract: A steering wheel made of resin, wherein a reinforcement, as a core of the steering wheel, consists of reinforcing members corresponding to a ring part, a sub-ring part and spoke parts, which are formed of windings and by hardening of a strand of continuously long fiber impregnated with a resin for hardening, after being wound onto the ring part, the sub-ring part and the spoke parts via a boss and spacers which are disposed at the joints between the ring part, the sub-ring part and the spoke parts.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: May 3, 1988
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsumi Kondo, Yasuhiro Tsutiya, Yasushi Yamazawa, Takatsune Niimi, Takashi Yamamoto
  • Method for manufacture of fiber reinforced resin structure such as a steering wheel core member
    Patent number: 4673451
    Abstract: A method for the manufacture of a fiber reinforced resin structure having branched portions comprising, winding a long continuous resin impregnated fiber strand repeatedly on a molding jig having a predetermined structure, winding said fiber strand tightly around each of the branched portions of the structure, and hardening said resin.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: June 16, 1987
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasushi Yamazawa, Katsumi Kondo, Yasuhiro Tsutiya, Takatsune Niimi, Takashi Yamamoto, Kunihiro Matsuba
  • Fiber-reinforced plastic core material for steering wheels
    Patent number: 4627307
    Abstract: A core material for steering wheels, comprising a boss equipped with sleeves in a unitary structure, each of which sleeves has a slit in the axial direction thereof, said sleeves further being packed with superposed fiber strands; a ring portion; and spoke portions which connect said ring portion to said boss and being formed by winding and stretching continuous long-staple fiber strands impregnated with a resin to form the superposed strands within said sleeves.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: December 9, 1986
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasushi Yamazawa, Yasuhiro Tsutiya, Masaki Terada, Tosio Aoki, Hiroyuki Sato