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Image forming system
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Patent number 6,819,446
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Issue date Nov 16, 2004
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Tohoku Ricoh Co., Ltd.
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Mutsuo Ogawa
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G06 - COMPUTING CALCULATING COUNTING
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Facsimile reception apparatus
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Patent number 4,459,617
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Issue date Jul 10, 1984
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Ricoh Company, Ltd.
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Mutsuo Ogawa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Facsimile apparatus
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Patent number 4,449,149
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Issue date May 15, 1984
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Ricoh Company, Ltd.
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Mutsuo Ogawa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Facsimile apparatus
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Patent number 4,398,222
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Issue date Aug 9, 1983
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Ricoh Company, Ltd.
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Mutsuo Ogawa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Facsimile apparatus
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Patent number 4,297,727
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Issue date Oct 27, 1981
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Ricoh Company, Ltd.
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Mutsuo Ogawa
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G06 - COMPUTING CALCULATING COUNTING
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Facsimile transceiver
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Patent number 4,291,339
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Issue date Sep 22, 1981
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Ricoh Company, Ltd.
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Mutsuo Ogawa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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