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Tetsumasa Ishida
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Yokohama, JP
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last 30 patents
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Patent Grant
Triboelectric stabilized toner for developing electrically charged...
Patent number
4,623,604
Issue date
Nov 18, 1986
Konishiroku Photo Industry Co., Ltd.
Hiroyuki Takagiwa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY