Tetsuo Takemura

Person

Kamakura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Portable telephone system
- Patent number 5,838,770
- Issue date Nov 17, 1998
- Hitachi, Ltd.
- Yutaka Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange network using telephone exchanges with speech re...
- Patent number 5,675,632
- Issue date Oct 7, 1997
- Hitachi, Ltd.
- Toshiyuki Odaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable telephone system
- Patent number 5,579,370
- Issue date Nov 26, 1996
- Hitachi, Ltd.
- Yutaka Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interconnection system and method for heterogeneous networks
- Patent number 5,208,811
- Issue date May 4, 1993
- Hitachi, Ltd.
- Jiro Kashio
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for providing network service in a communication system
- Patent number 5,157,390
- Issue date Oct 20, 1992
- Hitachi, Ltd.
- Tatsuo Yoshie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Time switch in a time division switching network
- Patent number 4,680,752
- Issue date Jul 14, 1987
- Hitachi, Ltd.
- Tetsuo Takemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital data transmission system with time division/packet transfor...
- Patent number 4,477,899
- Issue date Oct 16, 1984
- Hitachi, Ltd.
- Takao Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voice signal converting device
- Patent number 4,403,322
- Issue date Sep 6, 1983
- Hitachi, Ltd.
- Takao Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tetsuo Takemura

Person

Patents Grantslast 30 patents

Portable telephone system

Telephone exchange network using telephone exchanges with speech re...

Portable telephone system

Interconnection system and method for heterogeneous networks

Method for providing network service in a communication system

Time switch in a time division switching network

Digital data transmission system with time division/packet transfor...

Voice signal converting device