Tomokazu Kai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Mobile telephone system for automatically paging absent mobile subs...
- Patent number 4,661,972
- Issue date Apr 28, 1987
- NEC Corporation
- Tomokazu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio signal transmission system including a plurality of transmitt...
- Patent number 4,490,830
- Issue date Dec 25, 1984
- Nippon Electric Co., Ltd.
- Tomokazu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit arrangement for protecting a control channel from jamming w...
- Patent number 4,434,506
- Issue date Feb 28, 1984
- Nippon Electric Co., Ltd.
- Ryuhei Fujiwara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Malfunction detection system for a mobile radio telephone system
- Patent number 4,415,770
- Issue date Nov 15, 1983
- Nippon Electric Co., Ltd.
- Tomokazu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mobile communication system
- Patent number 4,392,242
- Issue date Jul 5, 1983
- Nippon Electric Co., Ltd.
- Tomokazu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitter control system
- Patent number 4,373,206
- Issue date Feb 8, 1983
- Nippon Electric Co., Inc.
- Yoshiharu Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Channel selecting system for use in a multi-channel mobile communic...
- Patent number 4,365,347
- Issue date Dec 21, 1982
- Nippon Electric Co., Ltd.
- Shigeru Otsuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control signal transmission system for use in a mobile radio commun...
- Patent number 4,352,955
- Issue date Oct 5, 1982
- Nippon Electric Co., Ltd.
- Tomokazu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mobile telephone channel exchange system
- Patent number 4,308,429
- Issue date Dec 29, 1981
- Nippon Electric Co., Ltd.
- Tomokazu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tomokazu Kai

Person

Patents Grantslast 30 patents

Mobile telephone system for automatically paging absent mobile subs...

Radio signal transmission system including a plurality of transmitt...

Circuit arrangement for protecting a control channel from jamming w...

Malfunction detection system for a mobile radio telephone system

Mobile communication system

Transmitter control system

Channel selecting system for use in a multi-channel mobile communic...

Control signal transmission system for use in a mobile radio commun...

Mobile telephone channel exchange system