Patents by Inventor Shyuichi Satoh

Shyuichi Satoh 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).

  • Light emitting element comprising diamond and method for producing the same
    Patent number: 4880613
    Abstract: A light emitting element comprising diamond which contains N-V color centers in a maximum optical density of of 0.01 to 3.5 in a direction of excitation light, Ib type nitrogen atoms in a maximum optical density not larger than 0.2 in a wavelength range of 530 to 610 nm and optionally H3 color centers, which element can be efficiently produced from artificial diamond by a combination of irradiation by an electron beam or a neutron beam and annealing.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: November 14, 1989
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Shyuichi Satoh, Kazuwo Tsuji