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Optical device
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Patent number 5,007,714
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Issue date Apr 16, 1991
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Canon Kabushiki Kaisha
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Yukuo Nishimura
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G02 - OPTICS
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Image forming device
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Patent number 4,960,679
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Issue date Oct 2, 1990
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Canon Kabushiki Kaisha
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Takashi Nakagiri
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Optical recording device
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Patent number 4,933,221
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Issue date Jun 12, 1990
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Canon Kabushiki Kaisha
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Yukuo Nishimura
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G11 - INFORMATION STORAGE
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Optical element
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Patent number 4,900,135
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Issue date Feb 13, 1990
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Canon Kabushiki Kaisha
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Satoshi Yuasa
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G06 - COMPUTING CALCULATING COUNTING
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Light modulating device
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Patent number 4,848,879
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Issue date Jul 18, 1989
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Canon Kabushiki Kaisha
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Yukuo Nishimura
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G06 - COMPUTING CALCULATING COUNTING
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Optical element
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Patent number 4,832,466
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Issue date May 23, 1989
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Canon Kabushiki Kaisha
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Yukuo Nishimura
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Apparatus for forming film
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Patent number 4,785,762
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Issue date Nov 22, 1988
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Canon Kabushiki Kaisha
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Toshihiko Miyazaki
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B82 - NANO-TECHNOLOGY
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Optical device
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Patent number 4,779,962
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Issue date Oct 25, 1988
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Canon Kabushiki Kaisha
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Yukuo Nishimura
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G02 - OPTICS