Shuzo Isogami

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Patents Grantslast 30 patents

Information Patent Grant
Electret condenser microphone unit
- Patent number 5,272,758
- Issue date Dec 21, 1993
- Hosiden Corporation
- Shuzo Isogami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for frequency regulation of tuning-fork vibrator
- Patent number 4,385,473
- Issue date May 31, 1983
- Hosiden Electronics Co., Ltd.
- Shigeo Aoki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Liquid crystal display device
- Patent number 4,382,659
- Issue date May 10, 1983
- Hosiden Electronics Co., Ltd.
- Shigeo Aoki
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS