Naoyuki Yayama

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Tsuyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Helical coil, method of producing same and helical antenna using same
- Patent number 6,147,661
- Issue date Nov 14, 2000
- Matsushita Electric Industrial Co., Ltd.
- Yoshinobu Nakagawa
- H01 - BASIC ELECTRIC ELEMENTS