Patents by Inventor Kentarou Oohashi

Kentarou Oohashi 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).

  • Patent number: 8911115
    Abstract: One spectrum correction filter that changes a spectral characteristic of emission light from the light source, at least one neutral density filter disposed on the same optical axis of the spectrum correction filter, wherein the at least one spectrum correction filter and/or the at least one neutral density filter is tilted so that a travel direction of reflection light reflected from the at least one spectrum correction filter is deviated from the optical axis.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 16, 2014
    Assignee: Iwasaki Electric Co., Ltd.
    Inventors: Daisuke Ogawa, Kentarou Oohashi, Kazuyoshi Yamada, Katsumi Kimura