Hitoshi Shimonosono

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method, product and apparatus for accelerating public-key certifica...
- Patent number 8,516,245
- Issue date Aug 20, 2013
- Hitachi, Ltd.
- Yoko Kumagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for accelerating public-key certificate valida...
- Patent number 7,558,952
- Issue date Jul 7, 2009
- Hitachi, Ltd.
- Yoko Kumagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital-signed digital document exchange supporting method and info...
- Patent number 7,533,269
- Issue date May 12, 2009
- Hitachi, Ltd.
- Yoko Kumagai
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD, PRODUCT AND APPARATUS FOR ACCELERATING PUBLIC-KEY CERTIFICA...
- Publication number 20090259842
- Publication date Oct 15, 2009
- Hitachi, Ltd
- Yoko KUMAGAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital-signed digital document exchange supporting method and info...
- Publication number 20060168650
- Publication date Jul 27, 2006
- Yoko Kumagai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for accelerating public-key certificate valida...
- Publication number 20050081037
- Publication date Apr 14, 2005
- Yoko Kumagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Certificate path information management system and certificate mana...
- Publication number 20040128503
- Publication date Jul 1, 2004
- Hitachi, Ltd
- Kiyoshi Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE