Patents by Inventor Masashi Kubbota

Masashi Kubbota 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: 4770986
    Abstract: Disclosed is a photographic material which comprises a synthetic plastic film, a polyolefin layer provided on one surface of the plastic film, an image forming layer provided on said polyolefin layer and layer (A) which contains at least one of carboxy-modified polyethylene, ethylene-ethyl acrylate copolymer, ethylene-vinyl acetate copolymer and polyolefin and which is provided on another surface of the synthetic plastic film opposite to the image forming layer side, the surface of said polyolefin layer which contacts with the image forming layer being a roughened surface and the surface of the layer (A) being a mirror-like surface.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: September 13, 1988
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Akira Uno, Masashi Kubbota, Akira Ninohira, Toshihiko Ueoka, Masaoki Nozaki
  • Patent number: 4407896
    Abstract: In preparing a polyolefin resin-coated paper for photographic use which comprises melt-extruding and coating a polyolefin resin composition containing titanium dioxide onto at least one surface of a paper sheet or a synthetic paper base, a composition having physical property value n (as defined in the specification) of not greater than 5 when measured at 200.degree. C. and a shearing rate of 1000/sec is employed as the polyolefin resin composition. Thus, problems in preparation and quality due to generation of die lip stains can be solved.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: October 4, 1983
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Masashi Kubbota, Touru Noda