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characterised by a controllable bridge in the final stage
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H05B41/2887
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ELECTRICITY
H05
Electric techniques
H05B
ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
H05B41/00
Circuit arrangements or apparatus for igniting or operating discharge lamps
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H05B41/2887
characterised by a controllable bridge in the final stage
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Patents Grants
last 30 patents
Information
Patent Grant
Discharge lamp drive device, light source device, projector, and di...
Patent number
11,076,457
Issue date
Jul 27, 2021
Seiko Epson Corporation
Junichi Suzuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Discharge lamp drive device, light source device, projector, and di...
Patent number
10,925,127
Issue date
Feb 16, 2021
Seiko Epson Corporation
Masaru Kono
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Discharge lamp drive device, light source device, projector, and di...
Patent number
10,660,171
Issue date
May 19, 2020
Seiko Epson Corporation
Shun Sato
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp drive device, light source device, projector, and di...
Patent number
10,568,192
Issue date
Feb 18, 2020
Seiko Epson Corporation
Junichi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp drive device, light source device, projector, and di...
Patent number
10,527,917
Issue date
Jan 7, 2020
Seiko Epson Corporation
Shun Sato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Discharge lamp drive device, light source device, projector, and di...
Patent number
10,375,808
Issue date
Aug 6, 2019
Seiko Epson Corporation
Junichi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, light source device, projector, and...
Patent number
10,295,893
Issue date
May 21, 2019
Seiko Epson Corporation
Tetsuo Terashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driver, light source apparatus, projector, and disch...
Patent number
10,295,894
Issue date
May 21, 2019
Seiko Epson Corporation
Shun Sato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
10,237,521
Issue date
Mar 19, 2019
Seiko Epson Corporation
Shun Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Discharge lamp lighting device
Patent number
10,237,959
Issue date
Mar 19, 2019
Ushio Denki Kabushiki Kaisha
Kosuke Saka
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Projector and control method for projector
Patent number
10,222,684
Issue date
Mar 5, 2019
Seiko Epson Corporation
Junichi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driver, light source, projector, and method of drivi...
Patent number
10,197,899
Issue date
Feb 5, 2019
Seiko Epson Corporation
Satoshi Kito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
10,076,018
Issue date
Sep 11, 2018
Seiko Epson Corporation
Masaru Kono
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp driver, light source apparatus, projector, and disch...
Patent number
10,018,899
Issue date
Jul 10, 2018
Seiko Epson Corporation
Masaru Kono
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light attenuation controlling apparatus and method for a CDM lamp
Patent number
10,015,870
Issue date
Jul 3, 2018
GUANGZHOU TRIZ INFORMATION TECHNOLOGY LTD.
Jun Hu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Projector and control method for projector
Patent number
9,939,717
Issue date
Apr 10, 2018
Seiko Epson Corporation
Tomoya Mizutani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
9,915,862
Issue date
Mar 13, 2018
Seiko Epson Corporation
Satoshi Kito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
9,867,265
Issue date
Jan 9, 2018
Seiko Epson Corporation
Shun Sato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
9,785,041
Issue date
Oct 10, 2017
Seiko Epson Corporation
Shun Sato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp drive device, projector, and discharge lamp drive me...
Patent number
9,729,839
Issue date
Aug 8, 2017
Seiko Epson Corporation
Osamu Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
DLP projector and method for projecting at least one image onto a p...
Patent number
9,699,875
Issue date
Jul 4, 2017
Osram GmbH
Juergen Mueller
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
9,602,791
Issue date
Mar 21, 2017
Seiko Epson Corporation
Tetsuo Terashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp lighting apparatus
Patent number
9,603,228
Issue date
Mar 21, 2017
Murata Manufacturing Co., Ltd.
Tsuyoshi Umemoto
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Lighting device and illuminating device
Patent number
9,585,234
Issue date
Feb 28, 2017
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Kazuya Kato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
9,563,111
Issue date
Feb 7, 2017
Seiko Epson Corporation
Yoichi Nakagomi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Discharge lamp driving device, projector, and discharge lamp drivin...
Patent number
9,509,965
Issue date
Nov 29, 2016
Seiko Epson Corporation
Yoichi Nakagomi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Discharge lamp driving device, projector, and method for driving a...
Patent number
9,470,962
Issue date
Oct 18, 2016
Seiko Epson Corporation
Keishi Kimura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projector
Patent number
9,405,179
Issue date
Aug 2, 2016
Seiko Epson Corporation
Tetsuo Terashima
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp lighting device, projector, and method for driving d...
Patent number
9,392,676
Issue date
Jul 12, 2016
Seiko Epson Corporation
Kazuo Okawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Discharge lamp lighting apparatus and projector
Patent number
9,380,686
Issue date
Jun 28, 2016
USHIO DENKI KABUSHIKI KAISHI
Takanori Samejima
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
DISCHARGE LAMP DRIVE DEVICE, LIGHT SOURCE DEVICE, PROJECTOR, AND DI...
Publication number
20190196318
Publication date
Jun 27, 2019
SEIKO EPSON CORPORATION
Shun SATO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DISCHARGE LAMP DRIVE DEVICE, LIGHT SOURCE DEVICE, PROJECTOR, AND DI...
Publication number
20190090334
Publication date
Mar 21, 2019
SEIKO EPSON CORPORATION
Junichi SUZUKI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISCHARGE LAMP LIGHTING DEVICE
Publication number
20190053361
Publication date
Feb 14, 2019
Ushio Denki Kabushiki Kaisha
Kosuke SAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DISCHARGE LAMP DRIVER, LIGHT SOURCE APPARATUS, PROJECTOR, AND DISCH...
Publication number
20180252994
Publication date
Sep 6, 2018
SEIKO EPSON CORPORATION
Shun SATO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISCHARGE LAMP DRIVER, LIGHT SOURCE, PROJECTOR, AND METHOD OF DRIVI...
Publication number
20180129128
Publication date
May 10, 2018
SEIKO EPSON CORPORATION
Satoshi KITO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DISCHARGE LAMP DRIVER, LIGHT SOURCE APPARATUS, PROJECTOR, AND DISCH...
Publication number
20180035522
Publication date
Feb 1, 2018
SEIKO EPSON CORPORATION
Masaru KONO
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DISCHARGE LAMP DRIVING DEVICE, PROJECTOR, AND DISCHARGE LAMP DRIVIN...
Publication number
20160360600
Publication date
Dec 8, 2016
SEIKO EPSON CORPORATION
Shun SATO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DISCHARGE LAMP LIGHTING APPARATUS
Publication number
20160323984
Publication date
Nov 3, 2016
Ushio Denki Kabushiki Kaisha
Tomohiro OKUDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DISCHARGE LAMP DRIVE DEVICE, PROJECTOR, AND DISCHARGE LAMP DRIVE ME...
Publication number
20160286179
Publication date
Sep 29, 2016
SEIKO EPSON CORPORATION
Osamu Saito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHTING DEVICE AND ILLUMINATING DEVICE
Publication number
20160262247
Publication date
Sep 8, 2016
Panasonic Intellectual Property Management Co., Ltd.
Kazuya KATO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT SOURCE DEVICE, PROJECTOR, AND PROJECTION SYSTEM
Publication number
20160124293
Publication date
May 5, 2016
SEIKO EPSON CORPORATION
Shun SATO
G02 - OPTICS
Information
Patent Application
DISCHARGE LAMP LIGHTING DEVICE AND HEADLIGHT USING SAME
Publication number
20150305129
Publication date
Oct 22, 2015
Masahiro NISHIKAWA
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH-VOLTAGE DISCHARGE LAMP ILLUMINATION DEVICE
Publication number
20150201481
Publication date
Jul 16, 2015
Ushio Denki Kabushiki Kaisha
Minoru Fukuda
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DLP PROJECTOR AND METHOD FOR PROJECTING AT LEAST ONE IMAGE ONTO A P...
Publication number
20140340656
Publication date
Nov 20, 2014
OSRAM GMBH
Juergen Mueller
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROJECTOR
Publication number
20140285771
Publication date
Sep 25, 2014
SEIKO EPSON CORPORATION
Tetsuo TERASHIMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROJECTOR
Publication number
20140232990
Publication date
Aug 21, 2014
SEIKO EPSON CORPORATION
Tetsuo TERASHIMA
G02 - OPTICS
Information
Patent Application
HIGH PRESSURE DISCHARGE LAMP LIGHTING APPARATUS
Publication number
20140167641
Publication date
Jun 19, 2014
Ushio Denki Kabushiki Kaisha
Atsushi Imamura
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD AND ELECTRICAL CIRCUIT FOR OPERATING A LIGHT SOURCE OF A MOT...
Publication number
20140145639
Publication date
May 29, 2014
Automotive Lighting Reutlingen GmbH
Ruediger Laubenstein
B60 - VEHICLES IN GENERAL
Information
Patent Application
DISCHARGE LAMP LIGHTING APPARATUS AND PROJECTOR
Publication number
20140036240
Publication date
Feb 6, 2014
Ushio Denki Kabushiki Kaisha
Takanori SAMEJIMA
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ELECTRIC LIGHTING DRIVER CIRCUIT
Publication number
20140021880
Publication date
Jan 23, 2014
Chun-An Cheng
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LIGHT SOURCE DEVICE, PROJECTOR, AND METHOD OF DRIVING DISCHARGE LAMP
Publication number
20130207568
Publication date
Aug 15, 2013
SEIKO EPSON CORPORATION
Junichi SUZUKI
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
POWER SUPPLY FOR XENON LAMPS IN AN ACCELERATED WEATHERING TEST APPA...
Publication number
20130127372
Publication date
May 23, 2013
ATLAS MATERIALS TESTING TECHNOLOGY, LLC
Gregory Mirsky
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
PROJECTOR
Publication number
20130088693
Publication date
Apr 11, 2013
SEIKO EPSON CORPORATION
Tetsuo TERASHIMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHT SOURCE DEVICE, METHOD OF DRIVING DISCHARGE LAMP, AND PROJECTOR
Publication number
20130050662
Publication date
Feb 28, 2013
SEIKO EPSON CORPORATION
Junichi Suzuki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH INTENSITY DISCHARGE LAMP CONTROL CIRCUIT AND CONTROL METHOD
Publication number
20130020959
Publication date
Jan 24, 2013
DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Qi ZHANG
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH INTENSITY DISCHARGE BALLAST CONFIGURED TO ACCOMMODATE WIDE RAN...
Publication number
20130015779
Publication date
Jan 17, 2013
Paul Srimuang
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
AMALGAM TEMPERATURE MAINTAINING DEVICE FOR DIMMABLE FLUORESCENT LAMPS
Publication number
20130002138
Publication date
Jan 3, 2013
GENERAL ELECTRIC COMPANY
Gabor Schmidt
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HID LIGHTING SYSTEM
Publication number
20120306395
Publication date
Dec 6, 2012
Koninklijke Philips Electronics N.V.
John Stephane Hirsch
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PROJECTOR
Publication number
20120206698
Publication date
Aug 16, 2012
SEIKO EPSON CORPORATION
Shunsuke HINO
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
POWER FACTOR CORRECTION METHOD AND DEVICE FOR DISCHARGE LAMPS, FOR...
Publication number
20120176053
Publication date
Jul 12, 2012
Luigi Desiderato
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...