Patents by Inventor Takao Higashi

Takao Higashi 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).

  • Lighting lamp
    Patent number: 4991074
    Abstract: A lighting lamp having a display sheet laminated on the surface of a bulb thereof, said display sheet comprising a support having laminated thereon a light-susceptible layer including an active layer containing at least one of a dye and a pigment capable of coloring, fading, or discoloring by the action of an active light and an adhesive layer formed on the surface of the light-susceptible layer such that the portion corresponding to at least the display portion thereof is exposed, and being laminated on the surface of the bulb by the adhesive layer.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: February 5, 1991
    Assignees: Tomoegawa Paper Co., Ltd., Hitachi Ltd.
    Inventors: Yasuo Kobayashi, Yasuo Hirasawa, Churyo Kodama, Katsumi Miyazaki, Takao Higashi, Masami Yanagisawa, Akinori Sei
  • Lighting lamp
    Patent number: 4954937
    Abstract: A lighting lamp is disclosed, comprising a lamp having laminated on the surface of a bulb thereof a display sheet, said display sheet comprising a support having thereon an active layer containing a pigment which is faded by the action of an active light and an active light-adjusting layer.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: September 4, 1990
    Assignees: Tomoegawa Paper Co., Ltd., Hitachi Ltd.
    Inventors: Yasuo Kobayashi, Naoki Hagiwara, Taisuke Hirota, Churyo Kodama, Yasuo Hirasawa, Katsumi Miyazaki, Fumio Kawamura, Takao Higashi, Masami Yanagisawa, Akinori Sei
  • UV-ray sensitive composition and element for measuring UV-ray dose
    Patent number: 4829187
    Abstract: A UV-ray sensitive composition, comprising a photo activator forming a free radical by the irradiation of UV-rays, a discoloring agent which exhibits a color change in visible region of spectrum through the action of this free radical, and a UV-ray absorber.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: May 9, 1989
    Assignee: Shiseido Company Ltd.
    Inventors: Kenichi Tomita, Masaru Suetsugu, Minoru Fukuda, Takao Higashi, Norimichi Koizumi