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Microwave holograph device
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Patent number 4,783,134
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Issue date Nov 8, 1988
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Hamamatsu Photonics Kabushiki Kaisha
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Tsutomu Hara
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Spatial light modulator
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Patent number 4,741,602
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Issue date May 3, 1988
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Hamamatsu Photonics Kabushiki Kaisha
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Tsutomu Hara
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G02 - OPTICS
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Synchronous scan streaking device
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Patent number 4,677,341
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Issue date Jun 30, 1987
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Hamamatsu Photonics Kabushiki Kaisha
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Katsuyuki Kinoshita
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H01 - BASIC ELECTRIC ELEMENTS
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Optical record disc
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Patent number 4,519,064
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Issue date May 21, 1985
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Nippon Columbia Kabushikikaisha
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Toshihiko Takagi
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G11 - INFORMATION STORAGE