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Ryohei Miyake
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Tokyo, JP
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last 30 patents
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Patent Grant
Optically anisotropic recording medium and method of recording and...
Patent number
6,090,508
Issue date
Jul 18, 2000
Ricoh Company, Ltd.
Kyoji Tsutsui
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Patent Grant
Heat-mode recording medium
Patent number
5,185,194
Issue date
Feb 9, 1993
Ricoh Company, Ltd.
Ryohei Miyake
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS