Patents by Inventor Hajime Kanbara

Hajime Kanbara 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).

  • Coating composition for recording material and process for producing recording material
    Patent number: 6001165
    Abstract: A coating composition for a recording material and a process for producing the recording material are provided, wherein the coating composition includes an aluminum alkoxide, a binder and a hydrophilic solvent.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: December 14, 1999
    Assignee: Oji-Yuka Synthetic Paper Co., Ltd.
    Inventors: Nobuhiro Shibuya, Toshiyuki Hirabe, Koichi Asami, Masahiro Satoh, Hajime Kanbara
  • Process for preparation of aluminum borate whisker
    Patent number: 4985222
    Abstract: Disclosed is a process for the preparation of an aluminum borate whisker, which comprises mixing a trialkali aluminum trisulfate represented by the following general formula:M.sub.3 Al(SO.sub.4).sub.3wherein M represents an alkali metal, with at least one boric anhydride source component selected from the group consisting of boron oxides, boron oxyacids and alkali metal salts thereof, and carrying out reaction and growth at a temperature of from 700.degree. to 1200.degree. C.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: January 15, 1991
    Assignee: Shikoku Chemicals Corporation
    Inventors: Hajime Hata, Hajime Kanbara
  • 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