Patents by Inventor Norifumi Tomita

Norifumi Tomita 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).

  • Variable-wavelength optical output device
    Patent number: 6973233
    Abstract: In a wavelength-variable light outputting apparatus, a diffraction grating 8 and a shielding member 11 which make wavelength and light quantity variable are attached to galvanometric scanners 12, 13, respectively, and the latter are swung, whereby the wavelength can be made variable at a high speed while in a state where the light quantity is kept constant. Such an apparatus is useful for capturing a fluorescent image of a biological sample in particular. By way of the shielding member 11, light is made incident on the optical fiber 10 and is outputted therefrom, whereby a biological sample SM can effectively be irradiated with light.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: December 6, 2005
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Norifumi Tomita, Yoshio Isobe, Hirotoshi Terada, Yoshinori Mizuguchi