Ryu Watanabe

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Kamifukuoka-shi, JP

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Patents Applicationslast 30 patents

Information Patent Application
Impedance matching circuit and noise filter equipped with the same
- Publication number 20030222730
- Publication date Dec 4, 2003
- KDDI CORPORATION
- Ryu Watanabe
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Optical Transmission system
- Publication number 20030118280
- Publication date Jun 26, 2003
- Tetsuya Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE