Shinichi ISHIKAWA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Earphone for audiometer, and audiometer
- Patent number 10,390,126
- Issue date Aug 20, 2019
- Rion Co., Ltd.
- Shinichi Ishikawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
EARPHONE FOR AUDIOMETER, AND AUDIOMETER
- Publication number 20190116413
- Publication date Apr 18, 2019
- Rion Co., Ltd.
- Shinichi ISHIKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HEADPHONE
- Publication number 20190104353
- Publication date Apr 4, 2019
- Rion Co., Ltd.
- Shinichi ISHIKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE