Patents by Inventor Yuji Kasamatsu

Yuji Kasamatsu 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 light generating target, electron-beam-excited ultraviolet light source, and method for producing ultraviolet light generating target
    Patent number: 9318312
    Abstract: An ultraviolet light generating target 20 includes a substrate 21 made of sapphire, quartz, or rock crystal; and a light-emitting layer 22 that is provided on the substrate 21 and that generates ultraviolet light upon receiving an electron beam. The light-emitting layer 22 includes powdered or granular Pr:LuAG crystals. By using such a light-emitting layer 22 as the target, the ultraviolet light generating efficiency can be increased more remarkably than when a Pr:LuAG single crystal film is used.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: April 19, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori Honda, Fumitsugu Fukuyo, Yuji Kasamatsu, Takashi Suzuki, Takeaki Hattori, Koji Kawai, Shucheng Chu, Hiroyuki Taketomi
  • ULTRAVIOLET LIGHT GENERATING TARGET, ELECTRON-BEAM-EXCITED ULTRAVIOLET LIGHT SOURCE, AND METHOD FOR PRODUCING ULTRAVIOLET LIGHT GENERATING TARGET
    Publication number: 20140048721
    Abstract: An ultraviolet light generating target 20 includes a substrate 21 made of sapphire, quartz, or rock crystal; and a light-emitting layer 22 that is provided on the substrate 21 and that generates ultraviolet light upon receiving an electron beam. The light-emitting layer 22 includes powdered or granular Pr:LuAG crystals. By using such a light-emitting layer 22 as the target, the ultraviolet light generating efficiency can be increased more remarkably than when a Pr:LuAG single crystal film is used.
    Type: Application
    Filed: April 24, 2012
    Publication date: February 20, 2014
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori Honda, Fumitsugu Fukuyo, Yuji Kasamatsu, Takashi Suzuki, Takeaki Hattori, Koji Kawai, Shucheng Chu, Hiroyuki Taketomi