Patents by Inventor Toshikatsu Yamamuro

Toshikatsu Yamamuro 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: 20050121138
    Abstract: A flexible metal foil/polyimide laminate is prepared by furnishing a composite film including a polyimide film having a Tg?350° C., sandwiched between polyimide layers having a Tg?300° C., laying metal foils on opposite sides of the composite film, and continuously hot pressing the resulting stack in a vacuum atmosphere having a vacuum of up to 5 Torr or a nitrogen atmosphere having an oxygen concentration of up to 0.5% by volume. A flexible metal foil/polyimide laminate having improved surface properties can be continuously prepared while preventing the metal foils from being degraded by oxidation.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 9, 2005
    Inventors: Shigehiro Hoshida, Toshikatsu Yamamuro, Tadashi Amano
  • Patent number: 5877820
    Abstract: In optically transmitting a video signal comprised of luminance and chrominance signals which are frequency modulated to provide an FM luminance signal and an FM chrominance signal in respective adjacent frequency bands, such as, 6 to 20 MHz and 20 to 30 MHz, respectively, whereupon, infrared signals corresponding to the FM luminance and chrominance signals are output by respective emitting diodes, a carrier frequency for the FM chrominance signal is set, for example, between 25.93 and 26.08 MHz, so that the lower sideband wave of the FM chrominance signal is spaced by a substantial frequency from a frequency band in which a secondary distortion of the FM luminance signal is substantially generated. Further, the upper sideband wave of the FM chrominance signal is removed, as in a trap circuit, for ensuring that the transmitted FM chrominance signal will be accommodated in the respective frequency band therefor when its carrier frequency is set, as above.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: March 2, 1999
    Assignee: Sony Corporation
    Inventors: Toshikatsu Yamamuro, Tadashi Ezaki, Hiroshi Moriuchi
  • Patent number: 5194536
    Abstract: A process of preparing a lower vinyl chloride polymer which comprises suspension polymerization of a vinyl chloride monomer of a mixture of unsaturated monomers consisting essentially of vinyl chloride, in an aqueous solvent, in the presence of a straight chain alkyl vinyl compound having an epoxy end terminal group represented by the formula I: ##STR1## wherein n is an integer of 2-20.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: March 16, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Makoto Fujiwara, Toshimichi Koga, Toshikatsu Yamamuro