Photographic silver halide emulsion

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6677109
SERIAL NO

10351366

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Abstract

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A producing method of a silver halide emulsion comprising the steps of adding silver halide fine grains AgX.sub.0 having an to a silver halide seed crystal emulsion containing at least water, dispersion medium 1 and silver halide crystal, and growing the seed crystal by dissolving the added AgX.sub.0, wherein AgX.sub.0 are formed in dispersion medium solution 2 containing dispersion medium 2, the pH of dispersion medium solution 2 of the time when AgX.sub.0 are formed is from 7.3 to 12.2, the average equivalent-circle projected area diameter of AgX.sub.0 is from 0.001 to 0.2 .mu.m, and AgX.sub.0 are non-twin crystal grains not substantially having twin planes.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATIONTOKYO 106-8620

International Classification(s)

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  • 2003 Application Filing Year
  • G03C Class
  • 795 Applications Filed
  • 175 Patents Issued To-Date
  • 22.02 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2003200420052006200720082009201020112012201320140255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miki, Masaaki Kanagawa, JP 21 51
Ohzeki, Katsuhisa Kanagawa, JP 40 160
Saitou, Mitsuo Kanagawa, JP 39 399

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  • 21 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4352215827239533201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 8081 - 9091 - 1000255075100125150175200225250275300325350375400425450475500525550

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