Patents by Inventor Kohji Sakane

Kohji Sakane 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).

  • Metal-based composite material and process for preparation thereof
    Patent number: 5013523
    Abstract: Disclosed is a metal-based composite material comprising aluminum or an aluminum alloy combined with a whisker of aluminum borate represented by the chemical formula of 9Al.sub.2 O.sub.3.2B.sub.2 O.sub.3 or 2Al.sub.2 O.sub.3.B.sub.2 O.sub.3. This composite material has excellent mechanical properties such as high tensile strength and high hardness.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: May 7, 1991
    Assignees: Agency of Industrial Science & Technology, Shikoku Chemicals Corporation
    Inventors: Hajime Hata, Takao Kitamura, Kohji Sakane, Hideo Wada, Seiji Sogabe
  • Process for preparing aluminum borate whiskers
    Patent number: 4925641
    Abstract: An aluminum borate whisker having a composition of 9Al.sub.2 O.sub.3 .multidot.2B.sub.2 O.sub.3 or 2Al.sub.2 O.sub.3 .multidot.B.sub.2 O.sub.3 is formed by reacting under heating at least one aluminum-supplying component selected from the group consisting of hydroxides and inorganic salts of aluminum and at least one boric acid-supplying component selected from the group consisting of oxides, oxyacids and their alkali metal salts of boron in the presence of at least one flux selected from the group consisting of alkali metal chlorides, alkali metal sulfates and alkali carbonates.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: May 15, 1990
    Assignees: Agency of Industrial Science & Technology, Shikoku Chemicals Corporation
    Inventors: Takao Kitamura, Kohji Sakane, Hideo Wada, Hajime Hata, Hajime Kanbara