Tomohisa Kumagai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Data authenticity assurance method, management computer, and storag...
- Patent number 9,419,804
- Issue date Aug 16, 2016
- Hitachi, Ltd.
- Natsuki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DATA AUTHENTICITY ASSURANCE METHOD, MANAGEMENT COMPUTER, AND STORAG...
- Publication number 20140298034
- Publication date Oct 2, 2014
- Hitachi, Ltd
- Natsuki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE