Patents by Inventor Chihiko Yamada

Chihiko Yamada 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: 5148309
    Abstract: A reflective type screen comprising a reflective surface layer a polarizing plate layer located in front of said reflective surface layer and a diffusion layer located in front of the polarized plate layer, wherein the reflective surface layer, the polarizing plate layer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed. In addition, a reflective type screen comprising a reflective surface layer subjected to mirror-surface processing and laid on a flexible substrate, a polarizer and a diffusion layer arranged for covering the polarizer therewith wherein the reflective surface layer, the polarizer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: September 15, 1992
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Chihiko Yamada, Teruo Suzuki, Tsutomu Yoshida, Shinji Kubota
  • Patent number: 4485413
    Abstract: A color television video signal is directly read out in synchronism to the scanning speed of a scanner, the video signal thus read out is converted into three primary color signals, and these three primary color signals are in turn converted into process video signals, which are supplied to the scanner. A printing plate can be produced directly from a television video signal without requiring any color picture original.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: November 27, 1984
    Assignee: Toppan Printing Company, Ltd.
    Inventors: Haruo Furuta, Toshiji Fujita, Chihiko Yamada, Masaki Nojima
  • Patent number: 4339769
    Abstract: A photography apparatus for television picture comprises a video tape recorder which detects a frame specifying signal recorded on an audio track corresponding to a frame image next to a predetermined frame image by a detecting head disposed before the audio head by a distance corresponding to one field in the direction of tape travel; a memory device for storing one frame image produced by the video tape recorder when the video tape recorder detects the frame specifying signal; an NTSC decoder for separating the signal stored in the memory into three primary color signals; a monochrome monitor for reproducing images corresponding to each of the three primary color signals produced by the NTSC decoder; and a camera with a vertically elongated aperture diaphragm for forming, on color film, multi-exposed images on the monochrome monitor through color filters passing only the respective primary color corresponding to each image.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: July 13, 1982
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Toshiji Fujita, Chihiko Yamada, Takeo Terashima, Masaki Nojima