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Tomonari Hokkyou
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Hitachinaka, JP
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last 30 patents
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Patent Grant
Developing system having a plurality of developing rollers with opp...
Patent number
6,330,414
Issue date
Dec 11, 2001
Hitachi Koki Co., Ltd.
Yasuo Takuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY