Minoru Ito

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Yamagata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic vibrator member and method of manufacturing
- Patent number 4,968,551
- Issue date Nov 6, 1990
- Pioneer Electronic Corporation
- Wataru Kusanagi
- B32 - LAYERED PRODUCTS
Information Patent Grant
Diaphragm for use in electro-acoustic transducer
- Patent number 4,674,592
- Issue date Jun 23, 1987
- Alpine Electronics Inc.
- Shuichi Aoki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE