Seiichiro Kawashima

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Signal converter, optical transmitter and optical fiber transmissio...
- Patent number 7,382,986
- Issue date Jun 3, 2008
- Matsushita Electric Industrial Co., Ltd.
- Jun Ohya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal converter, optical transmitter and optical fiber transmissio...
- Patent number 6,556,327
- Issue date Apr 29, 2003
- Matsushita Electric Industrial Co., Ltd.
- Jun Ohya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FM modulation device
- Patent number 5,973,820
- Issue date Oct 26, 1999
- Matsushita Electric Industrial Co., Ltd.
- Masaru Fuse
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Signal converter, optical transmitter and optical fiber transmissio...
- Publication number 20030198476
- Publication date Oct 23, 2003
- Matsushita Electric Industrial Co., Ltd.
- Jun Ohya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE