Tsutomu Iitsuka

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Minato-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for automatically sending messages at desired appropriate ti...
- Patent number 7,539,731
- Issue date May 26, 2009
- NEC Corporation
- Hirohisa Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method for automatically sending messages at desired appropriate ti...
- Publication number 20050013291
- Publication date Jan 20, 2005
- NEC Corporation
- Hirohisa Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE