Patents by Inventor Tomohiro Shonai

Tomohiro Shonai 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).

  • Laser oscillation method and laser device
    Patent number: 6937630
    Abstract: To provide a laser oscillation method and a laser device, which use a laser medium such as an Nd:GdVO4 crystal to which neodymium is doped in high concentration exceeding 1% in atomicity ratio, the laser medium comprised of the gadolinium-vanadate crystal to which neodymium as laser active ion is doped by a floating zone method such that concentration becomes exceeding 1% in atomicity ratio.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: August 30, 2005
    Assignees: Riken, NEC Tokin Corporation, Megaopto Co., Ltd.
    Inventors: Satoshi Wada, Takayo Ogawa, Hideo Tashiro, Hiroshi Machida, Mikio Higuchi, Kohei Kodaira, Tomohiro Shonai
  • Laser oscillation method and laser device
    Publication number: 20030147444
    Abstract: To provide a laser oscillation method and a laser device, which use a laser medium such as an Nd:GdVO4 crystal to which neodymium is doped in high concentration exceeding 1% in atomicity ratio, the laser medium comprised of the gadolinium-vanadate crystal to which neodymium as laser active ion is doped by a floating zone method such that concentration becomes exceeding 1% in atomicity ratio.
    Type: Application
    Filed: September 10, 2002
    Publication date: August 7, 2003
    Inventors: Satoshi Wada, Takayo Ogawa, Hideo Tashiro, Hiroshi Machida, Mikio Higuchi, Kohei Kodaira, Tomohiro Shonai