Patents Assigned to Local Independent Administrative Agency Iwate Industrial Research Institute
  • Photovoltaic ultraviolet sensor
    Patent number: 7973379
    Abstract: A photovoltaic ultraviolet sensor comprises a zinc oxide single crystal substrate. On the +c face of the zinc oxide single crystal substrate, an ultraviolet receiver is formed. The exemplary ultraviolet receiver includes a Schottky electrode which, when receiving ultraviolet rays, produces a voltage in cooperation with the zinc oxide single crystal substrate. The ultraviolet sensor does not have any sensitivity to the visible rays. The ultraviolet sensor has a relatively fast response of several microseconds.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: July 5, 2011
    Assignees: Citizen Holdings Co., Ltd., Local Independent Administrative Agency Iwate Industrial Research Institute, Incorporated National University Iwate University
    Inventors: Mayo Sugibuchi, Kohsuke Takahashi, Shunsuke Goto, Yasube Kashiwaba, Haruyuki Endo, Tatsuo Hasegawa, Fukunori Izumida, Eriko Ohshima