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Optical recording medium
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Patent number 5,753,334
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Issue date May 19, 1998
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Matsushita Electric Industrial Co., Ltd.
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Kazumi Yoshioka
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G11 - INFORMATION STORAGE
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Method of recording information
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Patent number 5,674,649
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Issue date Oct 7, 1997
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Matsushita Electric Industrial Co., Ltd.
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Kazumi Yoshioka
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G11 - INFORMATION STORAGE
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Optical recording medium
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Patent number 5,665,520
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Issue date Sep 9, 1997
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Matsushita Electric Industrial Co., Ltd.
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Kazumi Yoshioka
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G11 - INFORMATION STORAGE
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Optical recording medium
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Patent number 5,587,216
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Issue date Dec 24, 1996
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Matsushita Electric Industrial Co., Ltd.
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Kazumi Yoshioka
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G11 - INFORMATION STORAGE
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Optical record medium
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Patent number 5,395,669
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Issue date Mar 7, 1995
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Matsushita Electric Industrial Co., Ltd.
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Katsumi Kawahara
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G11 - INFORMATION STORAGE
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Information recording medium
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Patent number 5,147,701
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Issue date Sep 15, 1992
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Matsushita Electric Industrial Co., Ltd.
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Shigeaki Furukawa
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G11 - INFORMATION STORAGE
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