Tomoharu Morio

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Sakura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Certificate validity authentication method and apparatus
- Patent number 7,409,551
- Issue date Aug 5, 2008
- Hitachi, Ltd.
- Takahiro Fujishiro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Certificate validity authentication method and apparatus
- Patent number 7,080,251
- Issue date Jul 18, 2006
- Hitachi, Ltd.
- Takahiro Fujishiro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Certificate validity authentication method and apparatus
- Publication number 20060242413
- Publication date Oct 26, 2006
- Takahiro Fujishiro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Certificate validity authentication method and apparatus
- Publication number 20020046340
- Publication date Apr 18, 2002
- Takahiro Fujishiro
- H04 - ELECTRIC COMMUNICATION TECHNIQUE