Takeo Fukushima

Follow

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Switching system between working transmission lines and protection...
- Patent number 5,343,464
- Issue date Aug 30, 1994
- Fujitsu Limited
- Hatsumi Iino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching system of optical transmission lines for protecting from...
- Patent number 5,327,275
- Issue date Jul 5, 1994
- Fujitsu Limited
- Kazuo Yamane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Maintenance signal transmission system
- Patent number 5,282,193
- Issue date Jan 25, 1994
- Fujitsu Limited
- Hatsumi Iino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission line switching system
- Patent number 5,109,296
- Issue date Apr 28, 1992
- Fujitsu Limited
- Takeo Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency converter
- Patent number 4,885,746
- Issue date Dec 5, 1989
- Fujitsu Limited
- Takeo Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiplex system for replacing a faulty multiplexer output with an...
- Patent number 4,754,456
- Issue date Jun 28, 1988
- Fujitsu Limited
- Yoshiaki Yato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hierarchical data transmission system
- Patent number 4,727,541
- Issue date Feb 23, 1988
- Fujitsu Limited
- Masakazu Mori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE