Patents by Inventor Motonobu Yamada

Motonobu Yamada 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).

  • Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of same
    Patent number: 6428728
    Abstract: A fiber reinforced thermoplastic resin structure comprising a thermoplastic resin and reinforcing fibers, having a ratio (Lw/Ln) of the number average fiber length (Ln) to the weight average fiber length (Lw) of the uniformly dispersed reinforcing fibers of 1.1 to 5, and having a weight average fiber length of 1.0 mm to 200 mm as well as a process and extruder for the production thereof.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: August 6, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Hidetoshi Sakai, Motoki Hiratsuka, Akihiko Watanabe, Motonobu Yamada
  • Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of the same
    Patent number: 6060010
    Abstract: An extruder comprising a screw and cylinder, the screw and/or cylinder having helices formed thereon and distal portions of the helices having substantially continuous irregularities formed in their surfaces which form a control mechanism enabling control of the degree of combing and fiber length by combing the supplied continuous roving.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: May 9, 2000
    Assignee: Toray Industries, Inc.
    Inventors: Hidetoshi Sakai, Motoki Hiratsuka, Akihiko Watanabe, Motonobu Yamada
  • Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of same
    Patent number: 5824410
    Abstract: A fiber reinforced thermoplastic resin structure comprising a thermoplastic resin and reinforcing fibers, having a ratio (Lw/Ln) of the number average fiber length (Ln) to the weight average fiber length (Lw) of the uniformly dispersed reinforcing fibers of 1.1 to 5, and having a weight average fiber length of 1.0 mm to 200 mm.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: October 20, 1998
    Assignee: Toray Industries, Inc.
    Inventors: Hidetoshi Sakai, Motoki Hiratsuka, Akihiko Watanabe, Motonobu Yamada
  • Fiber reinforced thermoplastic resin structure, process for production of same, and extruder for production of same
    Patent number: 5679456
    Abstract: A fiber reinforced thermoplastic resin structure comprising a thermoplastic resin and reinforcing fibers, having a ratio (Lw/Ln) of the number average fiber length (Ln) to the weight average fiber length (Lw) of the uniformly dispersed reinforcing fibers of 1.1 to 5, and having a weight average fiber length of 1.0 mm to 200 mm as well as a process and extruder for the production thereof.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: October 21, 1997
    Assignee: Toray Industries, Inc.
    Inventors: Hidetoshi Sakai, Motoki Hiratsuka, Akihiko Watanabe, Motonobu Yamada