Patents by Inventor Hiroto Himaki

Hiroto Himaki 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).

  • Oxynitide phosphor and production process thereof, and light-emitting device using oxynitride phosphor
    Publication number: 20060076883
    Abstract: An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.
    Type: Application
    Filed: October 15, 2003
    Publication date: April 13, 2006
    Inventors: Hiroto Himaki, Suguru Takashima, Masatoshi Kameshima, Takahiro Naitou