Patents by Inventor Naoko Fukuwatari

Naoko Fukuwatari 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: 5928846
    Abstract: A method for processing a silver halide photographic light-sensitive material is disclosed. The processing method comprises the step of (1) developing a silver halide photographic light-sensitive material which comprises a support having thereon a silver halide emulsion layer and a hydrophilic colloid layer adjoining with the silver halide emulsion layer, and at least one of the silver halide emulsion layer and the hydrophilic colloid layer contains a phosphazene compound and a compound represented by the following Formula 1 or 2 by a developing solution and (2) fixing the silver halide photographic light-sensitive material by a fixing solution, ##STR1## wherein R.sub.1 and R.sub.2 are each independently a hydroxyl group, a mercapto group, an amino group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an alkoxycarbonyl group or an alkylthio group, and Z is a group of atoms necessary to form a 5- or 6-member ring, ##STR2## wherein R is an aryl group, R.sub.3, R.sub.4, R.sub.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: July 27, 1999
    Assignee: Konica Corporation
    Inventors: Hirobumi Yamashita, Naoko Fukuwatari, Toshiyuki Marui
  • Patent number: 5840471
    Abstract: A method for processing a silver halide photographic light-sensitive material is disclosed.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: November 24, 1998
    Assignee: Konica Corporation
    Inventors: Naoko Fukuwatari, Eiichi Ueda, Yasuo Kurachi