Patents by Inventor Kazuyuki Kazumi

Kazuyuki Kazumi 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).

  • Publication number: 20060087635
    Abstract: An exposure apparatus includes a projection optical system for projecting a multigradation pattern onto an object, a spatial modulation element that includes plural, two-dimensionally arranged pixels, and forms an optical image by binary control over each pixel, and a superposing optical system for forming the multigradation pattern by superposing the optical images for each row and/or for each column.
    Type: Application
    Filed: October 24, 2005
    Publication date: April 27, 2006
    Inventors: Kazuyuki Kazumi, Hirohisa Ota, Eigo Kawakami, Takashi Nakamura, Toshinobu Tokita
  • Patent number: 5508767
    Abstract: A film feed control device of a camera in a prewind method in which unexposed film is pulled out from a loaded film cartridge and rewound into the film cartridge for each photography comprises a frame number memory for storing an exposable frame number of said film, a frame counter for counting a feed frame number by detecting the perforations of said film, a pulled-out film length detector for detecting that said exposable frame number of frames are pulled out from said film cartridge, based on said feed frame number counted by said frame counter and said exposable frame number stored in said frame number memory, and a film feed control for controlling the film feed so as to pull out said film by a predetermined amount even after the pull-out of the exposable frame number is detected, and then to oppose the first frame to be set at a predetermined position of said film to an aperture by reversing the film feed direction, when unexposed film is pulled out prior to photographing.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: April 16, 1996
    Assignee: Nikon Corporation
    Inventors: Kazuyuki Kazumi, Koichi Daitoku