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Stage system and exposure apparatus
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Patent number 6,448,723
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Issue date Sep 10, 2002
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Canon Kabushiki Kaisha
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Shinji Wakui
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Position control system
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Patent number 5,568,032
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Issue date Oct 22, 1996
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Canon Kabushiki Kaisha
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Shinji Wakui
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Positioning system
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Patent number 5,545,962
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Issue date Aug 13, 1996
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Canon Kabushiki Kaisha
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Shinji Wakui
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Stage driving system
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Patent number 5,504,407
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Issue date Apr 2, 1996
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Canon Kabushiki Kaisha
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Shinji Wakui
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G05 - CONTROLLING REGULATING
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Objective lens apparatus
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Patent number 4,650,294
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Issue date Mar 17, 1987
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Seiko Instruments & Electronics Ltd.
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Ikuo Nanno
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G11 - INFORMATION STORAGE