Patents by Inventor Naotaka Hakamata

Naotaka Hakamata 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).

  • Photodetecting device and image sensing apparatus using the same
    Patent number: 6573640
    Abstract: A photodetecting device is characterized by comprising a photodetecting section having a photoelectric surface for emitting photoelectrons upon incidence of light, a semiconductor detection element having an electron incident surface on which the photoelectrons can be incident, and a vacuum vessel in which the photoelectric surface is arranged on one inner surface, and the semiconductor detection element is arranged on the other inner surface opposing the one surface, and cooling means for cooling a structure on the semiconductor detection element side of the vacuum vessel.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: June 3, 2003
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Naotaka Hakamata, Tadashi Maruno, Motohiro Suyama