Patents by Inventor Keiich Kuba

Keiich Kuba 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).

  • Optical system, finder optical system, relay type finder optical system, eyepiece optical system, and single-lens reflex camera
    Publication number: 20060153553
    Abstract: The invention concerns an optical system adapted to split an optical path from a taking optical system into a finder optical system, which has a camera-shake correction function best suited for the finder optical system, and so on. This optical system comprises a taking optical system and a finder optical system. The taking optical system comprises an optical path splitter means operable to split an optical path into the finder optical system, and the finder optical system includes a relay optical system RLS for re-forming a subject image once. Anti-shake is implemented by shifting an optical subsystem RL that forms a part of the finder optical system in a plane vertical to an optical axis.
    Type: Application
    Filed: January 3, 2006
    Publication date: July 13, 2006
    Inventors: Akiyoshi Tochigi, Teruhisa Mitsuo, Keiich Kuba, Hisashi Goto