Takashi Kawaguchi

Person

Shiojiri-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Watch motor control circuit, electronic watch, and watch motor cont...
- Patent number 11,906,934
- Issue date Feb 20, 2024
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece, movement, and motor control circuit
- Patent number 11,693,368
- Issue date Jul 4, 2023
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece, movement, and motor control circuit
- Patent number 11,429,067
- Issue date Aug 30, 2022
- Seiko Epson Corporation
- Reiko Nagahama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic watch and method for controlling electronic watch
- Patent number 11,296,627
- Issue date Apr 5, 2022
- Seiko Epson Corporation
- Reiko Nagahama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor control circuit, movement, and electronic timepiece
- Patent number 11,258,384
- Issue date Feb 22, 2022
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece and motor controller
- Patent number 11,175,632
- Issue date Nov 16, 2021
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Movement and electronic timepiece
- Patent number 11,165,376
- Issue date Nov 2, 2021
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece and motor control circuit
- Patent number 11,137,724
- Issue date Oct 5, 2021
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Movement, electronic timepiece, and motor drive control method
- Patent number 10,958,199
- Issue date Mar 23, 2021
- Seiko Epson Corporation
- Reiko Nagahama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic device and method of initializing controller of electron...
- Patent number 9,990,017
- Issue date Jun 5, 2018
- Seiko Epson Corporation
- Takashi Kawaguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Time measurement device
- Patent number 9,563,176
- Issue date Feb 7, 2017
- Seiko Epson Corporation
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece with generator function
- Patent number 7,933,168
- Issue date Apr 26, 2011
- Seiko Epson Corporation
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece with generator function
- Patent number 7,729,207
- Issue date Jun 1, 2010
- Seiko Epson Corporation
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Grant
Drive apparatus of piezoelectric actuator, electronic apparatus, dr...
- Patent number 7,675,218
- Issue date Mar 9, 2010
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Drive control apparatus, electronic apparatus, method of controllin...
- Patent number 7,663,978
- Issue date Feb 16, 2010
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece with calendar function and control method for...
- Patent number 7,616,527
- Issue date Nov 10, 2009
- Seiko Epson Corporation
- Shuichi Tamura
- G04 - HOROLOGY
Information Patent Grant
Drive method for piezoelectric actuator, drive apparatus for piezoe...
- Patent number 7,348,708
- Issue date Mar 25, 2008
- Seiko Epson Corporation
- Jun Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Piezoelectric actuator drive apparatus, electronic device, driving...
- Patent number 7,339,305
- Issue date Mar 4, 2008
- Seiko Epson Corporation
- Yutaka Yamazaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Drive apparatus for piezoelectric actuator, drive method for piezoe...
- Patent number 7,298,066
- Issue date Nov 20, 2007
- Seiko Epson Corporation
- Takashi Kawaguchi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Drive method for piezoelectric actuator, drive apparatus for piezoe...
- Patent number 7,247,970
- Issue date Jul 24, 2007
- Seiko Epson Corporation
- Jun Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driving method of piezoelectric actuator, driving apparatus of piez...
- Patent number 7,119,475
- Issue date Oct 10, 2006
- Seiko Epson Corporation
- Jun Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic timepiece, control method for electronic timepiece, regu...
- Patent number 7,095,679
- Issue date Aug 22, 2006
- Seiko Epson Corporation
- Teruhiko Fujisawa
- G04 - HOROLOGY
Information Patent Grant
Time measurement system and method of controlling the same
- Patent number 7,027,363
- Issue date Apr 11, 2006
- Seiko Epson Corporation
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Grant
Oscillation circuit, electronic apparatus, and timepiece using a po...
- Patent number 6,933,797
- Issue date Aug 23, 2005
- Seiko Epson Corporation
- Fumiaki Miyahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic timepiece, control method for electronic timepiece, regu...
- Patent number 6,850,468
- Issue date Feb 1, 2005
- Seiko Epson Corporation
- Teruhiko Fujisawa
- G04 - HOROLOGY
Information Patent Grant
Electronic apparatus, external adjustment device for the same, and...
- Patent number 6,768,704
- Issue date Jul 27, 2004
- Seiko Epson Corporation
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece and method for transmitting data for electroni...
- Patent number 6,623,157
- Issue date Sep 23, 2003
- Seiko Epson Corporation
- Teruhiko Fujisawa
- G04 - HOROLOGY
Information Patent Grant
Multifunction electronic analog timepiece
- Patent number RE38197
- Issue date Jul 22, 2003
- Seiko Epson Corporation
- Kenji Sakamoto
- 368 - Horology: time measuring systems or devices
Information Patent Grant
Timepiece device mechanism for indicating restart after recharging
- Patent number 5,978,318
- Issue date Nov 2, 1999
- Seiko Epson Corporation
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Grant
Electronic watch
- Patent number 5,802,016
- Issue date Sep 1, 1998
- Seiko Epson Corporation
- Masaru Kubota
- G04 - HOROLOGY

Patents Applicationslast 30 patents

Information Patent Application
Watch Motor Control Circuit, Electronic Watch, And Watch Motor Cont...
- Publication number 20210216045
- Publication date Jul 15, 2021
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRONIC WATCH AND METHOD FOR CONTROLLING ELECTRONIC WATCH
- Publication number 20210006187
- Publication date Jan 7, 2021
- SEIKO EPSON CORPORATION
- Reiko NAGAHAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electronic Timepiece And Motor Control Circuit
- Publication number 20200310354
- Publication date Oct 1, 2020
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electronic Timepiece And Motor Controller
- Publication number 20200310353
- Publication date Oct 1, 2020
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRONIC TIMEPIECE, MOVEMENT, AND MOTOR CONTROL CIRCUIT
- Publication number 20200285200
- Publication date Sep 10, 2020
- SEIKO EPSON CORPORATION
- Reiko NAGAHAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Electronic Timepiece, Movement, And Motor Control Circuit
- Publication number 20200192297
- Publication date Jun 18, 2020
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- G04 - HOROLOGY
Information Patent Application
MOVEMENT, ELECTRONIC TIMEPIECE, AND MOTOR DRIVE CONTROL METHOD
- Publication number 20200036309
- Publication date Jan 30, 2020
- SEIKO EPSON CORPORATION
- Reiko NAGAHAMA
- G04 - HOROLOGY
Information Patent Application
MOTOR CONTROL CIRCUIT, MOVEMENT, AND ELECTRONIC TIMEPIECE
- Publication number 20190305702
- Publication date Oct 3, 2019
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- G04 - HOROLOGY
Information Patent Application
Movement And Electronic Timepiece
- Publication number 20190302698
- Publication date Oct 3, 2019
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- G04 - HOROLOGY
Information Patent Application
ELECTRONIC DEVICE AND METHOD OF INITIALIZING CONTROLLER OF ELECTRON...
- Publication number 20160282817
- Publication date Sep 29, 2016
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- G04 - HOROLOGY
Information Patent Application
TIME MEASUREMENT DEVICE
- Publication number 20150309479
- Publication date Oct 29, 2015
- SEIKO EPSON CORPORATION
- Takashi KAWAGUCHI
- G04 - HOROLOGY
Information Patent Application
Electronic Timepiece with Generator Function
- Publication number 20080225647
- Publication date Sep 18, 2008
- SEIKO EPSON CORPORATION
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Application
Electronic Timepiece with Generator Function
- Publication number 20080225648
- Publication date Sep 18, 2008
- SEIKO EPSON CORPORATION
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Application
Drive apparatus of piezoelectric actuator, electronic apparatus, dr...
- Publication number 20070278976
- Publication date Dec 6, 2007
- SEIKO EPSON CORPORATION
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Application
Drive apparatus for piezoelectric actuator, drive method for piezoe...
- Publication number 20060113863
- Publication date Jun 1, 2006
- SEIKO EPSON CORPORATION
- Takashi Kawaguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Drive method for piezoelectric actuator, drive apparatus for piezoe...
- Publication number 20060006762
- Publication date Jan 12, 2006
- SEIKO EPSON CORPORATION
- Jun Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Drive method for piezoelectric actuator, drive apparatus for piezoe...
- Publication number 20060001330
- Publication date Jan 5, 2006
- SEIKO EPSON CORPORATION
- Jun Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Drive control apparatus, electronic apparatus, method of controllin...
- Publication number 20050231184
- Publication date Oct 20, 2005
- SEIKO EPSON CORPORATION
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Application
Piezoelectric actuator drive apparatus, electronic device, driving...
- Publication number 20050231069
- Publication date Oct 20, 2005
- SEIKO EPSON CORPORATION
- Yutaka Yamazaki
- G04 - HOROLOGY
Information Patent Application
Electronic timepiece with calendar function and control method for...
- Publication number 20050185513
- Publication date Aug 25, 2005
- Seiko Epson Corporation
- Shuichi Tamura
- G04 - HOROLOGY
Information Patent Application
Electronic timepiece, control method for electronic timepiece, regu...
- Publication number 20050041533
- Publication date Feb 24, 2005
- Teruhiko Fujisawa
- G04 - HOROLOGY
Information Patent Application
Driving method of piezoelectric actuator, driving apparatus of piez...
- Publication number 20040239381
- Publication date Dec 2, 2004
- SEIKO EPSON CORPORATION
- Jun Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Oscillation circuit, electronic apparatus, and timepiece
- Publication number 20040075508
- Publication date Apr 22, 2004
- SEIKO EPSON CORPORATION
- Fumiaki Miyahara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Time measurement system and method of controlling the same
- Publication number 20040042345
- Publication date Mar 4, 2004
- Takashi Kawaguchi
- G04 - HOROLOGY
Information Patent Application
Electronic timepiece, control method for electronic timepiece, regu...
- Publication number 20030112708
- Publication date Jun 19, 2003
- Teruhiko Fujisawa
- G04 - HOROLOGY

Takashi Kawaguchi

Person

Patents Grantslast 30 patents

Watch motor control circuit, electronic watch, and watch motor cont...

Electronic timepiece, movement, and motor control circuit

Electronic timepiece, movement, and motor control circuit

Electronic watch and method for controlling electronic watch

Motor control circuit, movement, and electronic timepiece

Electronic timepiece and motor controller

Movement and electronic timepiece

Electronic timepiece and motor control circuit

Movement, electronic timepiece, and motor drive control method

Electronic device and method of initializing controller of electron...

Time measurement device

Electronic timepiece with generator function

Electronic timepiece with generator function

Drive apparatus of piezoelectric actuator, electronic apparatus, dr...

Drive control apparatus, electronic apparatus, method of controllin...

Electronic timepiece with calendar function and control method for...

Drive method for piezoelectric actuator, drive apparatus for piezoe...

Piezoelectric actuator drive apparatus, electronic device, driving...

Drive apparatus for piezoelectric actuator, drive method for piezoe...

Drive method for piezoelectric actuator, drive apparatus for piezoe...

Driving method of piezoelectric actuator, driving apparatus of piez...

Electronic timepiece, control method for electronic timepiece, regu...

Time measurement system and method of controlling the same

Oscillation circuit, electronic apparatus, and timepiece using a po...

Electronic timepiece, control method for electronic timepiece, regu...

Electronic apparatus, external adjustment device for the same, and...

Electronic timepiece and method for transmitting data for electroni...

Multifunction electronic analog timepiece

Timepiece device mechanism for indicating restart after recharging

Electronic watch

Patents Applicationslast 30 patents

Watch Motor Control Circuit, Electronic Watch, And Watch Motor Cont...

ELECTRONIC WATCH AND METHOD FOR CONTROLLING ELECTRONIC WATCH

Electronic Timepiece And Motor Control Circuit

Electronic Timepiece And Motor Controller

ELECTRONIC TIMEPIECE, MOVEMENT, AND MOTOR CONTROL CIRCUIT

Electronic Timepiece, Movement, And Motor Control Circuit

MOVEMENT, ELECTRONIC TIMEPIECE, AND MOTOR DRIVE CONTROL METHOD

MOTOR CONTROL CIRCUIT, MOVEMENT, AND ELECTRONIC TIMEPIECE

Movement And Electronic Timepiece

ELECTRONIC DEVICE AND METHOD OF INITIALIZING CONTROLLER OF ELECTRON...

TIME MEASUREMENT DEVICE

Electronic Timepiece with Generator Function

Electronic Timepiece with Generator Function

Drive apparatus of piezoelectric actuator, electronic apparatus, dr...

Drive apparatus for piezoelectric actuator, drive method for piezoe...

Drive method for piezoelectric actuator, drive apparatus for piezoe...

Drive method for piezoelectric actuator, drive apparatus for piezoe...

Drive control apparatus, electronic apparatus, method of controllin...

Piezoelectric actuator drive apparatus, electronic device, driving...

Electronic timepiece with calendar function and control method for...

Electronic timepiece, control method for electronic timepiece, regu...

Driving method of piezoelectric actuator, driving apparatus of piez...

Oscillation circuit, electronic apparatus, and timepiece

Time measurement system and method of controlling the same

Electronic timepiece, control method for electronic timepiece, regu...