Patents by Inventor Kazuhito Hashimoto

Kazuhito Hashimoto 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).

  • Architectural material using metal oxide exhibiting photocatalytic activity
    Patent number: 5643436
    Abstract: 0564344368A metal-oxide layer exhibiting a photocatalytic activity function is formed on the surface of an inorganic architectural material, such as external wall material, roofing material, internal wall material, flooring material, and ceiling material, including glass, tile, concrete, stone, metal, and the like, so as to provide the property of deodorizing a space coming in contact with the architectural material, and antimold, antisoiling properties, and ultraviolet-ray absorbency of the surface of the architectural material, as well as the long-term maintenance of these properties. Preferably, the metal-oxide layer is formed by fixing a metal-oxide thin film on the surface of the architectural material.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Takenaka Corporation
    Inventors: Takatoshi Ogawa, Yasuhiko Yoshioka, Nobuo Tsubouchi, Toshio Saito, Tamotsu Hasegawa, Akira Fujishima, Kazuhito Hashimoto
  • Architectural material using metal oxide exhibiting photocatalytic activity
    Patent number: 5595813
    Abstract: A metal-oxide layer exhibiting a photocatalytic activity function is formed on the surface of an inorganic architectural material, such as external wall material, roofing material, internal wall material, flooring material, and ceiling material, including glass, tile, concrete, stone, metal, and the like, so as to provide the property of deodorizing a space coming in contact with the architectural material, and antimold, antisoiling properties, and ultraviolet-ray absorbency of the surface of the architectural material, as well as the long-term maintenance of these properties. Preferably, the metal-oxide layer is formed by fixing a metal-oxide thin film on the surface of the architectural material.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: January 21, 1997
    Assignee: Takenaka Corporation
    Inventors: Takatoshi Ogawa, Yasuhiko Yoshioka, Nobuo Tsubouchi, Toshio Saito, Tamotsu Hasegawa, Akira Fujishima, Kazuhito Hashimoto
  • Photocatalyst composite and process for producing the same
    Patent number: 5547823
    Abstract: A photocatalyst composite is provided which comprise a substrate having particles of a photocatalyst such as titanium oxide, adhered thereon via a less degradative adhesive such as a fluorinated polymer comprising a copolymer of a vinyl ester and/or vinyl ether and a fluoroolefin, or a silicon based polymer or cement. Furthermore, a process for producing the photocatalyst composite and a coating composition containing the photocatalyst composite are provided.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: August 20, 1996
    Assignees: Ishihara Sangyo Kaisha, Ltd., Akira Fujishima, Kazuhito Hashimoto
    Inventors: Sadao Murasawa, Hajime Murakami, Yasuro Fukui, Mitsuru Watanabe, Akira Fujishima, Kazuhito Hashimoto