Patents by Inventor Mariko Iwashita

Mariko Iwashita 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).

  • Method for replenishing a developer
    Patent number: 5523196
    Abstract: Disclosed is a method for developing a silver halide photographic light-sensitive material with a developer having a pH within the range of 9.5 to 10.7 through an automatic processor, wherein said silver halide photographic light-sensitive material comprises a support and thereon, at least one silver halide emulsion layer comprising silver halide grains containing at least 60 mol % of silver chloride, comprising the steps of:replenishing a first developer replenishing-solution having lower activity than a starter for a developer; andreplenishing a second developer replenishing-solution having the substantially same activity as said starter for a developer.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: June 4, 1996
    Assignee: Konica Corporation
    Inventors: Mariko Iwashita, Takeshi Sampei