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Display optical system
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Patent number 6,542,204
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Issue date Apr 1, 2003
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Minolta Co., Ltd.
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Soh Ohzawa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Zoom lens system
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Patent number 6,304,388
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Issue date Oct 16, 2001
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Minolta Co., Ltd.
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Mituaki Shimo
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G02 - OPTICS
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Zoom lens system
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Patent number 6,028,717
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Issue date Feb 22, 2000
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Minolta Co., Ltd.
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Tetsuo Kohno
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G02 - OPTICS
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Zoom lens system
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Patent number 5,973,854
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Issue date Oct 26, 1999
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Minolta Co., Ltd.
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Mituaki Shimo
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G02 - OPTICS
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Zoom lens system
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Patent number 5,815,321
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Issue date Sep 29, 1998
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Minolta Co., Ltd.
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Mituaki Shimo
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G02 - OPTICS