Narihiro Omoto

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Tada, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of managing digital signature, apparatus for processing digi...
- Patent number 7,574,605
- Issue date Aug 11, 2009
- Hitachi, Ltd.
- Kouichi Tanimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for verifying a digital signature
- Patent number 7,441,115
- Issue date Oct 21, 2008
- Hitachi, Ltd.
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic mail system
- Patent number 7,299,197
- Issue date Nov 20, 2007
- Hitachi, Ltd.
- Narihiro Omoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
File storage system and a NAS server
- Patent number 7,206,939
- Issue date Apr 17, 2007
- Hitachi, Ltd.
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Verification result recording method and apparatus for creating sig...
- Publication number 20050177734
- Publication date Aug 11, 2005
- Koichi Tanimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for verifying a digital signature
- Publication number 20040123107
- Publication date Jun 24, 2004
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Data protection system
- Publication number 20030221115
- Publication date Nov 27, 2003
- Shinji Itoh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
File storage system and a NAS server
- Publication number 20030187885
- Publication date Oct 2, 2003
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of managing digital signature, apparatus for processing digi...
- Publication number 20030182552
- Publication date Sep 25, 2003
- Kouichi Tanimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electronic mall system
- Publication number 20020178081
- Publication date Nov 28, 2002
- Hitachi, Ltd
- Narihiro Omoto
- G06 - COMPUTING CALCULATING COUNTING