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Capacitive voltage division or multiplication
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G04G19/04
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PHYSICS
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ELECTRONIC TIME-PIECES
G04G19/00
Electric power supply circuits specially adapted for use in electronic time-pieces
Current Industry
G04G19/04
Capacitive voltage division or multiplication
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic timepiece
Patent number
7,327,638
Issue date
Feb 5, 2008
Citizen Holdings Co., Ltd.
Yoichi Nagata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Cascaded charge pump power supply with different gate oxide thickne...
Patent number
6,967,523
Issue date
Nov 22, 2005
Mosaid Technologies Incorporated
Paul W. DeMone
G11 - INFORMATION STORAGE
Information
Patent Grant
Electronic apparatus and control method for electronic apparatus
Patent number
6,396,772
Issue date
May 28, 2002
Seiko Epson Corporation
Hiroshi Yabe
G04 - HOROLOGY
Information
Patent Grant
Thermoelectric system
Patent number
6,232,543
Issue date
May 15, 2001
Citizen Watch Co., Ltd.
Yoichi Nagata
G04 - HOROLOGY
Information
Patent Grant
Electronic control timepiece
Patent number
5,615,178
Issue date
Mar 25, 1997
Seiko Instruments Inc.
Akira Takakura
G04 - HOROLOGY
Information
Patent Grant
Display device
Patent number
4,516,120
Issue date
May 7, 1985
Citizen Watch Company Limited
Masao Sakuyama
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Power circuit for electronic timepiece
Patent number
4,404,624
Issue date
Sep 13, 1983
Kabushiki Kaisha Suwa Seikosha
Suguru Yamazaki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power circuit for electronic wristwatch
Patent number
4,397,563
Issue date
Aug 9, 1983
Kabushiki Kaisha Suwa Seikosha
Matsuo Ichinose
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece
Patent number
4,395,138
Issue date
Jul 26, 1983
Kabushiki Kaisha Suwa Seikosha
Hiroyuki Chihara
G04 - HOROLOGY
Information
Patent Grant
Electronic timepiece
Patent number
4,352,169
Issue date
Sep 28, 1982
Kabushiki Kaisha Daini Seikosha
Kazuhiro Asano
G04 - HOROLOGY
Information
Patent Grant
Voltage multiplier and driver circuit
Patent number
4,291,369
Issue date
Sep 22, 1981
Timex Corporation
Paul E. Hochstrate
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Voltage conversion system for electronic timepiece
Patent number
4,259,715
Issue date
Mar 31, 1981
Citizen Watch Co., Ltd.
Shigeru Morokawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electronic timepiece
Patent number
4,226,081
Issue date
Oct 7, 1980
Citizen Watch Co., Ltd.
Singo Ichikawa
G04 - HOROLOGY
Information
Patent Grant
Voltage conversion system for electronic timepiece
Patent number
4,205,518
Issue date
Jun 3, 1980
Citizen Watch Co., Ltd.
Shigeru Morokawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electronic watch
Patent number
4,145,872
Issue date
Mar 27, 1979
Ebauches S.A.
Hubert Portmann
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Booster circuit
Patent number
4,141,064
Issue date
Feb 20, 1979
Kabushiki Kaisha Suwa Seikosha
Shinichi Nagashima
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Device for enabling an accumulator to be recharged from a source of...
Patent number
4,134,057
Issue date
Jan 9, 1979
Ebauches S.A.
Hubert Portmann
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Voltage conversion system for electronic timepiece
Patent number
4,094,137
Issue date
Jun 13, 1978
Citizen Watch Company Limited
Shigeru Morokawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Voltage multiplier for an electronic time apparatus
Patent number
4,068,295
Issue date
Jan 10, 1978
Ebauches S.A.
Hubert Portmann
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Circuit for obtaining DC voltage higher than power source voltage
Patent number
4,061,929
Issue date
Dec 6, 1977
Kabushiki Kaisha Daini Seikosha
Kazuhiro Asano
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and apparatus for driving electrochromic display device
Patent number
4,060,974
Issue date
Dec 6, 1977
Citizen Watch Company Limited
Minoru Natori
G04 - HOROLOGY
Information
Patent Grant
Voltage multiplier circuit
Patent number
4,053,821
Issue date
Oct 11, 1977
Fairchild Camera and Instrument Corporation
R. Kenneth Hose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Voltage booster circuit using level shifter composed of two complem...
Patent number
4,029,973
Issue date
Jun 14, 1977
Hitachi, Ltd.
Isamu Kobayashi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Booster circuits
Patent number
4,016,476
Issue date
Apr 5, 1977
Citizen Watch Co., Ltd.
Shigeru Morokawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
D.C. potential multiplier
Patent number
4,001,664
Issue date
Jan 4, 1977
Seiko Instruments Incorporated
Tom M. Hyltin
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Digital display type electronic time keeper
Patent number
3,979,899
Issue date
Sep 14, 1976
Mitsubishi Denki Kabushiki Kaisha
Masateru Yoshida
G04 - HOROLOGY
Information
Patent Grant
Capacitive voltage converter employing CMOS switches
Patent number
3,975,671
Issue date
Aug 17, 1976
Intel Corporation
Peter A. Stoll
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Direct current power converters employing digital techniques used i...
Patent number
3,955,353
Issue date
May 11, 1976
Optel Corporation
Brian Astle
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
3824447
Patent number
3,824,447
Issue date
Jul 16, 1974
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
3818484
Patent number
3,818,484
Issue date
Jun 18, 1974
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
ANALOG ELECTRONIC WATCH
Publication number
20130250741
Publication date
Sep 26, 2013
SEIKO INSTRUMENTS INC.
Makoto MITANI
G04 - HOROLOGY
Information
Patent Application
Electronic clock, electronic apparatus and starting method
Publication number
20050243657
Publication date
Nov 3, 2005
CITIZEN WATCH CO. LTD
Yoichi Nagata
G04 - HOROLOGY
Information
Patent Application
Charge pump power supply
Publication number
20020101744
Publication date
Aug 1, 2002
Paul W. DeMone
G04 - HOROLOGY