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Kouji Sakamoto
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Tokyo, JP
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last 30 patents
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Patent Grant
Image forming apparatus having a revolver type developing device
Patent number
5,671,465
Issue date
Sep 23, 1997
Ricoh Company, Ltd.
Noriyuki Kimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Single component developing device with velocity of roller dependen...
Patent number
5,223,668
Issue date
Jun 29, 1993
Ricoh Company, Ltd.
Toshihiko Takaya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY