Osamu Tazawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Interactive CATV system
- Patent number 4,245,245
- Issue date Jan 13, 1981
- Pioneer Electronic Corporation
- Katsuaki Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for confirming transmission in bidirectional C...
- Patent number 4,156,847
- Issue date May 29, 1979
- Pioneer Electronic Corporation
- Osamu Tazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Arrangement for supplying audiovisual information to a subscriber t...
- Publication number 20030051250
- Publication date Mar 13, 2003
- Pioneer Corporation
- Masao Sugimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and apparatus for supplying audiovisual information to a sub...
- Publication number 20030051251
- Publication date Mar 13, 2003
- Pioneer Corporation
- Masao Sugimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE