Koichi Zama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric transformer
- Patent number 6,060,819
- Issue date May 9, 2000
- NEC Corporation
- Satoru Tagami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Packaged piezoelectric transformer unit
- Patent number 5,747,916
- Issue date May 5, 1998
- NEC Corporation
- Mitsuhiro Sugimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric vibrator with an improved supporting structure
- Patent number 5,583,829
- Issue date Dec 10, 1996
- NEC Corporation
- Koichi Zama
- H03 - BASIC ELECTRONIC CIRCUITRY