Patents by Inventor Satoshi Yahagi

Satoshi Yahagi 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).

  • Luminous flux separating optical system
    Patent number: 5327289
    Abstract: A color separation prism system for use in a TV camera which can separate R, G and B colors. The color separation prism system of the invention includes one or more air gaps each of which is formed between the prisms in a wedge shape that is open on the converging side of a luminous flux passing through the air gap. The use of the wedge-shaped air gap can reduce the possibility of generation of an astigmatism to thereby prevent deterioration of the performance of an optical system formed of the above-mentioned color separation prisms.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Fumio Watanabe, Satoshi Yahagi