Kazutoshi Yamada

Follow

Person

Sakai, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Analog filter for digital audio system and audio amplifier for usin...
- Patent number 6,721,427
- Issue date Apr 13, 2004
- Zanden Audio System Co., Ltd.
- Kazutoshi Yamada
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Vacuum tube audio amplifying circuit
- Patent number 5,912,585
- Issue date Jun 15, 1999
- Zanden Audio System Co., Ltd.
- Kazutoshi Yamada
- H03 - BASIC ELECTRONIC CIRCUITRY