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Image formation method
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Patent number 7,939,235
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Issue date May 10, 2011
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Ricoh Company Limited
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Takahiro Honda
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Color toner for electrophotography
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Patent number 6,103,441
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Issue date Aug 15, 2000
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Ricoh Company, Ltd.
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Masami Tomita
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Toner for dry developing
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Patent number 6,074,794
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Issue date Jun 13, 2000
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Ricoh Company, Ltd.
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Hiroyuki Fushimi
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Image forming apparatus
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Patent number 6,014,532
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Issue date Jan 11, 2000
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Ricoh Company, Ltd.
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Ryuta Takeichi
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Pulverizing apparatus
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Patent number 5,975,446
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Issue date Nov 2, 1999
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Ricoh Company, Ltd.
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Hiroshi Yaguchi
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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