Teruo Matsufuji

Follow

Person

Koganei, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Controlled power supply for key telephone system
- Patent number 4,763,348
- Issue date Aug 9, 1988
- Iwatsu Electric Co., Ltd.
- Yoichiro Sano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber's circuit for time division switching system
- Patent number 4,592,046
- Issue date May 27, 1986
- Iwasaki Tsushinki Kabushiki Kaisha
- Yoshihiro Kawata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Howler tone sending-out system in time-division electronic exchanges
- Patent number 4,502,139
- Issue date Feb 26, 1985
- Iwasaki Tsushinki Kabushiki Kaisha
- Teruo Matsufuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hybrid circuit
- Patent number 4,380,690
- Issue date Apr 19, 1983
- Iwasaki Tsushinki Kabushiki Kaisha
- Teruo Matsufuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE