Yoichi Kimura

Follow

Person

Ashiya, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Thin speaker having an enclosure with an open portion and a closed...
- Patent number 5,073,946
- Issue date Dec 17, 1991
- Matsushita Electric Industrial Co., Ltd.
- Katsuaki Satoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Thin speaker having an enclosure within an open portion and a close...
- Patent number 4,899,390
- Issue date Feb 6, 1990
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Takewa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE