Hisami KAJIWARA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Diaphragm for electroacoustic transducer
- Patent number 11,317,213
- Issue date Apr 26, 2022
- Foster Electric Company, Limited
- Hisami Kajiwara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DIAPHRAGM FOR ELECTROACOUSTIC TRANSDUCER
- Publication number 20230217199
- Publication date Jul 6, 2023
- FOSTER ELECTRIC COMPANY, LIMITED
- Hisami KAJIWARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIAPHRAGM FOR ELECTROACOUSTIC TRANSDUCER
- Publication number 20210385580
- Publication date Dec 9, 2021
- FOSTER ELECTRIC COMPANY, LIMITED
- Hisami KAJIWARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE