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Akio Yotsutani
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Tokyo, JP
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last 30 patents
Information
Patent Grant
Cordless key telephone system capable of quickly answering incoming...
Patent number
5,239,572
Issue date
Aug 24, 1993
NEC Corporation
Noboru Saegusa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio telephone system control method
Patent number
5,140,628
Issue date
Aug 18, 1992
Kabushiki Kaisha Toshiba
Yoshitoshi Murata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless telephone system
Patent number
4,974,251
Issue date
Nov 27, 1990
Nippon Telegraph & Telephone Corporation
Yuji Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless telephone apparatus and a method of controlling same
Patent number
4,962,524
Issue date
Oct 9, 1990
Nippon Telegraph & Telephone Corporation
Yoshitoshi Murata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control method and appartus for a radio telephone system
Patent number
4,897,864
Issue date
Jan 30, 1990
Nippon Telegraph and Telephone Corp.
Yoshitoshi Murata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio telephone system
Patent number
4,875,231
Issue date
Oct 17, 1989
NEC Corporation
Toshihiro Hara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication control system capable of searching a called telephon...
Patent number
4,843,622
Issue date
Jun 27, 1989
NEC Corporation
Akio Yotsutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control system of a radio telephone apparatus
Patent number
4,802,201
Issue date
Jan 31, 1989
Nippon Telegraph & Telephone Corporation
Kazuhiro Yoshizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio telephone system control apparatus and method
Patent number
4,802,200
Issue date
Jan 31, 1989
Nippon Telegraph & Telephone Corporation
Yoshitoshi Murata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio telephone system control apparatus and method
Patent number
4,776,001
Issue date
Oct 4, 1988
Nippon Telegraph & Telephone Corporation
Yoshitoshi Murata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of transmitting terminating call signals within a restricted...
Patent number
4,736,461
Issue date
Apr 5, 1988
Nippon Telegraph and Telephone Public Corporation
Ryoji Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio telephone system and method for controlling same
Patent number
4,726,052
Issue date
Feb 16, 1988
Nippon Telegraph and Telephone Corp.
Kaoru Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of transmitting terminating call signals within a restricted...
Patent number
4,679,244
Issue date
Jul 7, 1987
Nippon Telegraph and Telephone Public Corporation
Ryoji Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cordless telephone apparatus having means for synchronizing channel...
Patent number
4,656,653
Issue date
Apr 7, 1987
NEC Corporation
Toshiaki Oda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mobile radio communication system
Patent number
4,640,986
Issue date
Feb 3, 1987
NEC Corporation
Akio Yotsutani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Selective call radio communication receiver
Patent number
4,195,263
Issue date
Mar 25, 1980
Nippon Electric Co., Ltd.
Masaru Masaki
G08 - SIGNALLING
Information
Patent Grant
Digital radio paging communication system
Patent number
4,194,153
Issue date
Mar 18, 1980
Nippon Electric Co., Ltd.
Masaru Masaki
G08 - SIGNALLING