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Image processing apparatus
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Patent number 5,177,795
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Issue date Jan 5, 1993
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Canon Kabushiki Kaisha
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Hiroshi Tanioka
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Board-writing apparatus
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Patent number 4,924,319
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Issue date May 8, 1990
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Canon Kabushiki Kaisha
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Yoshitaka Ogino
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Image forming apparatus
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Patent number 4,905,042
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Issue date Feb 27, 1990
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Canon Kabushiki Kaisha
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Sohei Tanaka
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Image processing apparatus
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Patent number 4,821,334
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Issue date Apr 11, 1989
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Canon Kabushiki Kaisha
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Yoshitaka Ogino
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Electrostatic copying apparatus
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Patent number 4,365,888
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Issue date Dec 28, 1982
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Ricoh Company, Ltd.
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Masao Hosaka
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY