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Thermosensitive recording label
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Patent number RE33517
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Issue date Jan 8, 1991
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Ricoh Electronics, Inc.
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Tomoo Shibata
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503 - Record receiver having plural interactive leaves or a colorless color f...
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Thermosensitive recording label
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Patent number 4,633,276
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Issue date Dec 30, 1986
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Ricoh Electronics, Inc.
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Tomoo Shibata
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Thermosensitive recording label
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Patent number 4,577,204
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Issue date Mar 18, 1986
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Ricoh Electronics, Inc.
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Tomoo Shibata
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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