Patents by Inventor Takehito Arai

Takehito Arai 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).

  • Composite of silicon carbide and carbon and method of making the same
    Patent number: 5540950
    Abstract: This invention relates to a composite of silicon carbide and carbon. This invention also relates to its manufacturing method. An obtained composite is used as heat resistant, wear resistant or chemical resistant materials. The object of this manufacturing method is to form a deep layer of silicon carbide and carbon in the surface of a carbon base by a simple process of causing a silicon containing material to penetrate into and react with the carbon block. Further object of this invention is to produce a compound in whole comprised of silicon carbide and carbon if the carbon block is 20 mm or below in thickness. To this end, according to this forming method a carbon block having a lattice constant c of 6.708 .ANG. to 6.900 .ANG. or below and a density of 1.3 g/cm.sup.3 to 1.7 g/cm.sup.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: July 30, 1996
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Hajime Izawa, Takehito Arai, Taiji Yamamoto
  • Automobile
    Patent number: D532338
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: November 21, 2006
    Assignee: Suzuki Motor Corporation
    Inventors: Takehito Arai, Tetsuya Ozasa, Wataru Watanabe, Hiroyuki Tokuda
  • Automobile
    Patent number: D537384
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 27, 2007
    Assignee: Suzuki Motor Corporation
    Inventor: Takehito Arai
  • Automobile
    Patent number: D543136
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: May 22, 2007
    Assignee: Suzuki Motor Corporation
    Inventors: Takehito Arai, Hirohito Matsumoto, Kazuhisa Takayanagi, Yasuhide Kura