Patents by Inventor Atshushi Uchiyama

Atshushi Uchiyama 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).

  • Electron tube
    Publication number: 20070029930
    Abstract: In an electron tube, an insulating tube protrudes inside an envelope. One end of the insulating tube is connected to the envelope. An avalanche photo diode (APD) is provided on the other end of the insulating tube. A ground voltage is applied to the envelope and a positive high voltage is applied to the APD. Photoelectrons which are emitted in response to an incident light on a photocathode are converged by an electrical field in the envelope and enter the APD. Thereafter, the incident photoelectrons are amplified and detected. Since a positive high voltage is not exposed to the envelope, the electron tube can easily be handled and is excellent in safety.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 8, 2007
    Applicant: Hamamatsu Photonics K.K.
    Inventors: Motohiro Suyama, Hiroyuki Kyushima, Suenori Kimura, Yasuharu Negi, Atsuhito Fukasawa, Yoshihiko Kawai, Atshushi Uchiyama, Yasuyuki Egawa