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Telescope
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Patent number 8,427,745
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Issue date Apr 23, 2013
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Canon Kabushiki Kaisha
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Naoto Doujou
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G02 - OPTICS
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Thin film magnetic head
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Patent number 5,285,341
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Issue date Feb 8, 1994
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Canon Kabushiki Kaisha
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Takashi Suzuki
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G11 - INFORMATION STORAGE
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Inference system
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Patent number 4,860,214
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Issue date Aug 22, 1989
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Ricoh Company, Ltd.
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Toru Matsuda
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G06 - COMPUTING CALCULATING COUNTING