Patents by Inventor Horoaki Hyuga

Horoaki Hyuga 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).

  • Optical wavelength converting device, and laser diode pumped solid laser
    Patent number: 5197072
    Abstract: An optical wavelength converting device comprises an optical waveguide device. The optical waveguide device is provided with a waveguide, which is constituted of a solid laser medium doped with a rare earth metal and a nonlinear optical material for converting a wavelength. The solid laser medium and said nonlinear optical material are overlaid one upon the other. A cladding is formed of a material having a lower refractive index than the waveguide and accommodates the waveguide therein. Two edge faces of the optical waveguide device serve as a resonator for a laser beam, which has been produced by the solid laser medium.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: March 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akinori Harada, Nobuharu Nozaki, Yoji Okazaki, Horoaki Hyuga