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Akinari Takada
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Mitaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic watch
Patent number
11,656,580
Issue date
May 23, 2023
Citizen Watch Co., Ltd.
Shogo Kimura
G04 - HOROLOGY
Information
Patent Grant
Satellite radio-controlled watch
Patent number
9,606,515
Issue date
Mar 28, 2017
Citizen Holdings Co., Ltd.
Takushi Hagita
G01 - MEASURING TESTING
Information
Patent Grant
Radio-controlled timepiece
Patent number
9,292,006
Issue date
Mar 22, 2016
Citizen Holdings Co., Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Grant
Electronic device having metal outer case and antenna therein
Patent number
7,813,712
Issue date
Oct 12, 2010
Citizen Holdings Co., Ltd.
Tadashi Yasuoka
G04 - HOROLOGY
Information
Patent Grant
Radio controlled time piece and method of controlling same
Patent number
7,760,588
Issue date
Jul 20, 2010
Citizen Holdings Co., Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Grant
Radio controlled timepiece, electronic device and time correction m...
Patent number
7,680,485
Issue date
Mar 16, 2010
Citizen Holdings Co., Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Grant
Radio corrected clock
Patent number
7,408,845
Issue date
Aug 5, 2008
Citizen Holdings Co., Ltd.
Takashi Ihara
G04 - HOROLOGY
Information
Patent Grant
Radio-controlled timepiece, electronic device, time correcting meth...
Patent number
7,385,876
Issue date
Jun 10, 2008
Citizen Holdings Co., Ltd.
Takashi Ihara
G04 - HOROLOGY
Information
Patent Grant
Radio controlled timepiece and method of controlling the same
Patent number
7,372,779
Issue date
May 13, 2008
Citizen Holdings Co., Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Grant
Radio-controlled timepiece, standard frequency reception method, an...
Patent number
7,190,745
Issue date
Mar 13, 2007
Citizen Watch Co., Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Grant
Time information repeating installation and time information contro...
Patent number
6,459,657
Issue date
Oct 1, 2002
Citizen Watch Co., Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Grant
Time signal repeater and time correction system using the same
Patent number
6,288,977
Issue date
Sep 11, 2001
Rhythm Watch Co. Ltd.
Shinya Yoshida
G04 - HOROLOGY
Information
Patent Grant
Time signal repeater and time correction system using the same
Patent number
6,219,302
Issue date
Apr 17, 2001
Rhythm Watch Co, Ltd
Masahiro Tanoguchi
G04 - HOROLOGY
Information
Patent Grant
Watch with radio-signal correction function
Patent number
5,898,643
Issue date
Apr 27, 1999
Citizen Watch Co., Ltd.
Tadashi Yasuoka
G04 - HOROLOGY
Patents Applications
last 30 patents
Information
Patent Application
ELECTRONIC WATCH
Publication number
20190302699
Publication date
Oct 3, 2019
Citizen Watch Co., Ltd.
Shogo KIMURA
G04 - HOROLOGY
Information
Patent Application
RADIO-CONTROLLED TIMEPIECE
Publication number
20130016589
Publication date
Jan 17, 2013
Citizen Watch Co. Ltd.
Akinari Takada
G04 - HOROLOGY
Information
Patent Application
SATELLITE RADIO-CONTROLLED WATCH
Publication number
20130009816
Publication date
Jan 10, 2013
CITIZEN WATCH CO., LTD
Takushi Hagita
G04 - HOROLOGY
Information
Patent Application
Electronic Device
Publication number
20080293373
Publication date
Nov 27, 2008
Tadashi Yasuoka
G04 - HOROLOGY
Information
Patent Application
Radio controlled time piece and method of controlling same
Publication number
20070164903
Publication date
Jul 19, 2007
Akinari Takada
G04 - HOROLOGY
Information
Patent Application
Radio controlled clock, electronic device and time correction method
Publication number
20070152900
Publication date
Jul 5, 2007
CITIZEN WATCH CO., LTD.
Akinari Takada
G04 - HOROLOGY
Information
Patent Application
Radio-controlled timepiece, electronic device, time correcting meth...
Publication number
20050185514
Publication date
Aug 25, 2005
CITIZEN WATCH CO., LTD.
Takashi Ihara
G04 - HOROLOGY
Information
Patent Application
Radio controlled timepiece and method of controlling the same
Publication number
20050094495
Publication date
May 5, 2005
Akinari Takada
G04 - HOROLOGY
Information
Patent Application
Radio corrected clock
Publication number
20040202051
Publication date
Oct 14, 2004
Takashi Ihara
G04 - HOROLOGY
Information
Patent Application
Radio-controlled timepiece, standard frequency reception method, an...
Publication number
20030117901
Publication date
Jun 26, 2003
CITIZEN WATCH CO., LTD.
Akinari Takada
G04 - HOROLOGY