Patents by Inventor Kanehiro Saito

Kanehiro Saito 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).

  • Ultraviolet ray-shielding agent and tube
    Patent number: 5214345
    Abstract: An ultraviolet ray-shielding agent for selectively shielding ultraviolet rays while allowing a transmission of visible rays therethrough, comprising a visible ray-transmitting binder and extremely fine zinc oxide particles having an average size of 0.1 .mu.m or less in a mixing ratio of the zinc oxide particles to the binder of 1/10 to 10/1, and an ultraviolet ray-shielding tube for visible ray-irradiation luminescent lamps comprising a transparent substrate tube for sealing a light emission source therein, and a coating formed on a surface of the substrate tube and comprising the above-mentioned ultraviolet ray-shielding agent.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: May 25, 1993
    Assignee: Sumitomo Cement Company, Ltd.
    Inventors: Kanehiro Saito, Mitsumasa Saito
  • Ultraviolet-suppressed light source, coating agent used in the same, and method for manufacturing the same
    Patent number: 5051650
    Abstract: A film consisting of a fine powder of zinc oxide and titanium oxide and an inorganic binder is formed on the outer surface of a light source. The fine powder serves as an absorbent for ultraviolet radiation emitted from the light source. The film is formed on the outer surface by spraying a coating agent prepared by dispersing the above components in an organic solvent on the outer surface of the light source and heating and drying the coating agent.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: September 24, 1991
    Assignees: Kabushiki Kaisha Toshiba, Sumitomo Cement Co., Ltd.
    Inventors: Akira Taya, Keiji Hatakeyama, Kanehiro Saito, Mitsumasa Saito, Kazuhiko Osada