Katsuya Terada

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Authentication coordination system, terminal apparatus, storage med...
- Patent number 8,341,703
- Issue date Dec 25, 2012
- Hitachi, Ltd.
- Katsuyuki Umezawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
IC CARD, IC CARD SYSTEM, AND METHOD THEREOF
- Publication number 20110113241
- Publication date May 12, 2011
- Hitachi, Ltd
- Katsuyuki Umezawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATION COORDINATION SYSTEM, TERMINAL APPARATUS, STORAGE MED...
- Publication number 20100071033
- Publication date Mar 18, 2010
- Hitachi, Ltd.
- Katsuyuki UMEZAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE