Yoshiaki Kawatsura

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic money processing method having a transaction fee collect...
- Patent number 6,321,213
- Issue date Nov 20, 2001
- Hitachi, Ltd.
- Atsushi Ito
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
DEVICE APPLICATION SEARCH SYSTEM
- Publication number 20130262495
- Publication date Oct 3, 2013
- Hitachi, Ltd
- Yoshiaki Kawatsura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Access control method and system
- Publication number 20030191936
- Publication date Oct 9, 2003
- Yoshiaki Kawatsura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Information Patent Application
Apparatus and method for disribution of contents
- Publication number 20020018566
- Publication date Feb 14, 2002
- Hitachi, Ltd
- Yoshiaki Kawatsura
- G06 - COMPUTING CALCULATING COUNTING