Patents by Inventor Yukio Takai

Yukio Takai 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).

  • Friction material composition and friction material using the same
    Patent number: 7338987
    Abstract: There are disclosed a friction material composition which comprises a fibrous material except for asbestos, an inorganic friction regulator, an organic friction regulator and a binder, part of the inorganic friction regulator is ? alumina and ? alumina in combination, a weight ratio of the ? alumina and the ? alumina, ? alumina:? alumina, is in the range of 1:20 to 1:5, and part or whole part of the binder is a silicon-containing phenol resin, and a friction material obtained by molding the friction material composition under heating and pressure.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: March 4, 2008
    Assignees: Hitachi Chemical Co., Ltd., Nissan Motor Co., Ltd.
    Inventors: Manabu Ono, Teruyuki Nagayoshi, Mitsuhiro Inoue, Hiroki Morozumi, Takahiro Mibe, Yukio Takai
  • Friction material composition and friction material using the same
    Publication number: 20040262104
    Abstract: There are disclosed a friction material composition which comprises a fibrous material except for asbestos, an inorganic friction regulator, an organic friction regulator and a binder, part of the inorganic friction regulator is &agr; alumina and &ggr; alumina in combination, a weight ratio of the &agr; alumina and the &ggr; alumina, &agr; alumina:&ggr; alumina, is in the range of 1:20 to 1:5, and part or whole part of the binder is a silicon-containing phenol resin, and a friction material obtained by molding the friction material composition under heating and pressure.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 30, 2004
    Inventors: Manabu Ono, Teruyuki Nagayoshi, Mitsuhiro Inoue, Hiroki Morozumi, Takahiro Mibe, Yukio Takai
  • Brake lining of brake device
    Patent number: 6672433
    Abstract: A brake lining of a vehicular brake device is produced by a friction material which has a characteristic that a friction coefficient of the friction material decreases according to an increase of a sliding speed between the brake lining and a rotational member when the sliding speed is greater than or equal to a predetermined speed during the braking operation, and the friction coefficient is substantially constant when the sliding speed is smaller than the predetermined speed.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: January 6, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masato Yamaguchi, Yukio Takai, Hidetoshi Suzuki, Hideto Murakami, Takahiro Mibe, Takeshi Ito
  • Brake lining of brake device
    Publication number: 20030106749
    Abstract: A brake lining of a vehicular brake device is produced by a friction material which has a characteristic that a friction coefficient of the friction material decreases according to an increase of a sliding speed between the brake lining and a rotational member when the sliding speed is greater than or equal to a predetermined speed during the braking operation, and the friction coefficient is substantially constant when the sliding speed is smaller than the predetermined speed.
    Type: Application
    Filed: November 8, 2002
    Publication date: June 12, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masato Yamaguchi, Yukio Takai, Hidetoshi Suzuki, Hideto Murakami, Takahiro Mibe, Takeshi Ito