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Takayasu Hirai
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Osaka, JP
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Patents Grants
last 30 patents
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Patent Grant
Semiconductor cell for photomask data verification and semiconducto...
Patent number
8,527,917
Issue date
Sep 3, 2013
Ricoh Company, Ltd.
Takayasu Hirai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Semiconductor storing device
Patent number
6,990,039
Issue date
Jan 24, 2006
Ricoh Company, Ltd.
Takayasu Hirai
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory apparatus of which data are accessible by diff...
Patent number
6,795,371
Issue date
Sep 21, 2004
Ricoh Company, Ltd.
Takayasu Hirai
G11 - INFORMATION STORAGE
Information
Patent Grant
Data processor used in a data transfer system which includes a dete...
Patent number
6,105,082
Issue date
Aug 15, 2000
Ricoh Company, Ltd.
Takayasu Hirai
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Semiconductor memory apparatus of which data are accessible by diff...
Publication number
20030086309
Publication date
May 8, 2003
Ricoh Company, Ltd.
Takayasu Hirai
G11 - INFORMATION STORAGE