Yoshitaka Narishima

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Chigasaki, JP

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Patents Applicationslast 30 patents

Information Patent Application
Signature verifying method and its apparatus
- Publication number 20020157006
- Publication date Oct 24, 2002
- Hitachi, Ltd
- Yoshitaka Narishima
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Electronic commerce system for using secure user certification
- Publication number 20020069129
- Publication date Jun 6, 2002
- Takeshi Akutsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Payment processing method and system
- Publication number 20020046189
- Publication date Apr 18, 2002
- Hitachi, Ltd
- Akira Morita
- G06 - COMPUTING CALCULATING COUNTING