Patents by Inventor Kazuhisa Kobayashi

Kazuhisa Kobayashi 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: 5925302
    Abstract: In the method, after the pattern-bearing film is fed to the female mold, the distal end of the film is fixed under a lower portion of the female mold, and at the same time the film is retreated by a force from the film supply portion. Thus, this tightens up the film so that the slacks or wrinkles cannot be formed on the film. Therefore, the film can be fortunately spread around the parting surface of the female mold. In the apparatus, the film suppressing frame is pressed to the female mold through the sliding rod arranged in the female mold, in such a manner that the female mold embraces the frame. Thus, the pressing of the frame is performed by a simple structure, and the film is accurately positioned to the internal surface of the female mold. Also, the film suppressing frame is constituted to advance from and retreat to the female mold. Thus, this causes a space between the both molds and an outside standby position to be useless. A space around the apparatus can be effectively utilized.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: July 20, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shinpei Oono, Kazushi Miyazawa, Keiji Hanamoto, Takashi Tarutani, Takashi Matano, Kazuhisa Kobayashi, Hiroyuki Atake
  • Patent number: 5851560
    Abstract: A foil-decorating injection molding machine is provided with an injection mold having a male mold and a female mold. The female mold has a cavity surface for forming a cavity, and a parting surface having an outer peripheral section on which to hold a decorative sheet, and an inner peripheral section extending between the inner edge of the outer peripheral section of the parting surface and the edge of the cavity surface in a concavely curved shape to allow the expansion of a peripheral portion of the decorative sheet around a decorating portion of the same during preforming. This reduces local strains in the decorative portion of the sheet and ensures a uniform thickness distribution of the sheet to prevent breaking and creasing of the sheet.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: December 22, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kazuhisa Kobayashi, Masayuki Shibata, Hirohisa Yoshikawa
  • Patent number: 5843555
    Abstract: A pattern-bearing sheet for a simultaneous injection-molding and pattern-forming method, has a sufficient malleability in the following conditions. When the sheet is cut to a 10-mm width and subjected to a tensile load and thus elongated at a rate of 30%/second in an environment at 50.degree. C., the sheet should exhibit a stress value of 0.6 kg or higher at the yield point and after passing through the yield point in the case where the sheet is formed from a material having a yield point, and the sheet should exhibit a stress value of 0.6 kg or higher at an elongation of 10% and higher in the case where the sheet is formed from a material not having a yield point. Desirably, the value when the sheet cut to 10-mm width is elongated at a rate of 7%/second to an elongation of 200% (200% modulus value) at a temperature of 100.degree. C. to 120.degree. C. should be 0.3 kg or lower.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: December 1, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Atake, Kazuhisa Kobayashi
  • Patent number: 5102780
    Abstract: The present invention provides a silver halide photographic photosensitive material excellent in dimensional stability which comprises a polyethylene terephthalate film support and, provided thereon, at least one gelatin layer containing an active halogen type hardener, wherein water content in the gelatin layer is 20% by weight or less based on total amount of gelatin. Further provided is a method for producing such silver halide photographic photosensitive material which comprises coating a gelatin coating solution containing an active halogen type hardener on a polyethylene terephthalate film support and then drying the coat, wherein the coat is dried so that water content based on total amount of gelatin is 20% by weight or less and then, is subjected to a heat treatment.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: April 7, 1992
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Eiichi Terashima, Seiichi Sumi, Kazuhisa Kobayashi, Yoshio Shibata