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Overlay process of images
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Patent number 7,176,850
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Issue date Feb 13, 2007
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Seiko Epson Corporation
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Takafumi Itoh
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Projector
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Patent number 6,637,895
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Issue date Oct 28, 2003
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Seiko Epson Corporation
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Motoyuki Fujimori
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Projector
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Patent number RE38006
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Issue date Feb 25, 2003
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Seiko Epson Corporation
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Mutsuya Furuhata
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353 - Optics: image projectors
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Projector
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Patent number 6,364,492
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Issue date Apr 2, 2002
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Seiko Epson Corporation
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Motoyuki Fujimori
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G02 - OPTICS
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Projector
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Patent number 6,302,543
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Issue date Oct 16, 2001
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Seiko Epson Corporation
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Jun Arai
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Projector
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Patent number 6,203,158
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Issue date Mar 20, 2001
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Seiko Epson Corporation
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Mutsuya Furuhata
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G02 - OPTICS
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Image display apparatus
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Patent number 6,144,354
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Issue date Nov 7, 2000
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Seiko Epson Corporation
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Fumio Koyama
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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