Taruhi Iwagaki

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Digital content protection using invisible and visible watermarks
- Patent number 7,337,321
- Issue date Feb 26, 2008
- Hitachi, Ltd.
- Koichi Terada
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Data transmitting apparatus, contents distribution apparatus, conte...
- Publication number 20030191941
- Publication date Oct 9, 2003
- Koichi Terada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Storage device and system
- Publication number 20030161468
- Publication date Aug 28, 2003
- Hitachi, Ltd
- Taruhi Iwagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE