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Optical glass
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Patent number 7,638,449
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Issue date Dec 29, 2009
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Asahi Glass Company, Limited
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Kenji Imakita
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C03 - GLASS MINERAL OR SLAG WOOL
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Optical glass
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Patent number 7,582,580
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Issue date Sep 1, 2009
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Asahi Glass Company, Limited
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Hiroyuki Ohkawa
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C03 - GLASS MINERAL OR SLAG WOOL
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Optical glass and lens
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Patent number 7,514,381
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Issue date Apr 7, 2009
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Asahi Glass Company, Limited
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Syuji Matsumoto
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C03 - GLASS MINERAL OR SLAG WOOL