Patents by Inventor Hirohoko Shionaga

Hirohoko Shionaga 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-to-light conversion element provided with wavelength selecting reflection layer and imaging device provided with the light-to-light conversion element
    Patent number: RE34947
    Abstract: A light-to-light conversion element which includes at least a photoconductive layer and a photo-modulation layer and in which light incident on these layers is reflected by a reflection layer and in which a selective reflection characteristic corresponding to color separation is given to the reflection layer. Thereby, among the light incident on the photoconductive layer and the photo-modulation layer, light having wavelength of the specific region is selectively reflected by the reflection layer, so that the write and read operation of information is performed on the selected light.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: May 23, 1995
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Itsuo Takanashi, Shintaro Nakagaki, Hirohoko Shionaga, Masato Furuya, Tsutou Asakura, Testuhi Suzuki