Patents by Inventor Yukio Shinagawa

Yukio Shinagawa 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).

  • Photographic light-sensitive element with backing layer
    Patent number: 4582784
    Abstract: A photographic light-sensitive material comprising at least one light-sensitive photographic emulsion layer on a support and a back layer provided on the reverse side of the support, wherein the uppermost surface layer of the back layer comprises a hydrophobic polymer binder and a hydrophilic polymer binder.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: April 15, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masafumi Fukugawa, Shinzi Kataoka, Yukio Shinagawa, Itsuo Fujiwara
  • Polyester base drafting film with nitrocellulose and polymethylmethacrylate layer
    Patent number: 4366239
    Abstract: A drafting film comprising a hydrophobic support and a matte layer formed thereon, said matte layer comprising silicon dioxide as a matting agent and a mixture of polymethyl methacrylate or a copolymer thereof and nitrocellulose. The drafting film show excellent adaptability for writing or drawing and revising or erasing.A wash-off type photographic film is also provided by forming a wash-off silver halide photosensitive emulsion layer on the drafting film.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: December 28, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yukio Shinagawa, Sumio Ohtani, Koichi Suematsu, Hideo Kawaguchi
  • Method for subbing polyester films
    Patent number: 4168172
    Abstract: A polyester film, typically a support for photographic material is coated, prior to coating a hydrophilic organic colloid layer, with a subbing composition containing at least one compound represented by the general formula ##STR1## wherein a and d each represent 1 or 2; b and c each represent 0, 1, or 2 but b and c must not be 0 at the same time, A represents a divalent group; and n represents 0 or 1.
    Type: Grant
    Filed: November 21, 1978
    Date of Patent: September 18, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Kataoka, Yukio Shinagawa, Hidefumi Sera, Jun Yamaguchi
  • Photographic materials having improved anti-halation layers
    Patent number: 4039333
    Abstract: An anti-halation layer for photographic materials comprising at least one first binder which is swollen by an aqueous alkaline solution and comprises about 10 to about 25% by weight of alkyl acrylate units, 52 to 65% by weight of alkyl methacrylate units and about 18 to about 30% by weight of suitable acid monomer units, and at least a second binder agent which is soluble in an alkaline aqueous solution but which can withstand a strongly alkaline preliminary bath and is readily stripped away only at a successive rinsing operation.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: August 2, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yukio Shinagawa, Yasumasa Yamaguchi, Shuichi Shindo