Fumikazu Hamatani

Follow

Person

Kawasaki, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Pulse counting circuit
- Patent number 4,087,649
- Issue date May 2, 1978
- Nippon Tsu Shin Kogyo K.K.
- Stephen E. Kerman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dial impulse relay circuit
- Patent number 4,087,644
- Issue date May 2, 1978
- Nippon Tsu Shin Kogyo K.K.
- Fumikazu Hamatani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control circuitry for key telephone apparatus
- Patent number 4,081,625
- Issue date Mar 28, 1978
- Nippon Tsu Shin Kogyo K.K.
- Fumikazu Hamatani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE