Yoshiyuki Murakami

Follow

Person

Habikino, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electrode plate electret of electro-acoustic transducer and its man...
- Patent number 4,302,633
- Issue date Nov 24, 1981
- Hosiden Electronics Co., Ltd.
- Junichi Tamamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE