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Metal halide lamp
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Patent number 7,227,309
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Issue date Jun 5, 2007
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Matsushita Electric Industrial Co., Ltd.
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Yasutaka Horibe
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H01 - BASIC ELECTRIC ELEMENTS
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Method of producing arc tube body
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Patent number 7,138,083
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Issue date Nov 21, 2006
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Matsushita Electric Industrial Co., Ltd.
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Yasutaka Horibe
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B28 - WORKING CEMENT, CLAY, OR STONE
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Display apparatus
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Patent number 4,801,932
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Issue date Jan 31, 1989
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Matsushita Electric Industrial Co., Ltd.
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Yoneharu Takubo
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G02 - OPTICS
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-
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Light shutter array element
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Patent number 4,697,889
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Issue date Oct 6, 1987
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Matsushita Electric Industrial Co., Ltd.
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Yoneharu Takubo
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G02 - OPTICS