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Wataru YASUMATSU
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Azumino-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Wavelength conversion element, light source device, projector, and...
Patent number
11,841,600
Issue date
Dec 12, 2023
Seiko Epson Corporation
Wataru Yasumatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Wavelength conversion element, light source device, projector, and...
Patent number
11,698,579
Issue date
Jul 11, 2023
Seiko Epson Corporation
Koya Shiratori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source device, projector, and display device
Patent number
11,546,563
Issue date
Jan 3, 2023
Seiko Epson Corporation
Wataru Yasumatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source device and projector
Patent number
11,353,785
Issue date
Jun 7, 2022
Seiko Epson Corporation
Wataru Yasumatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source apparatus and projector
Patent number
11,249,380
Issue date
Feb 15, 2022
Seiko Epson Corporation
Wataru Yasumatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source device and projector
Patent number
11,237,471
Issue date
Feb 1, 2022
Seiko Epson Corporation
Wataru Yasumatsu
G02 - OPTICS
Information
Patent Grant
Wavelength converter, light source apparatus, and projector
Patent number
11,156,909
Issue date
Oct 26, 2021
Seiko Epson Corporation
Wataru Yasumatsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Illuminator and projector
Patent number
10,976,654
Issue date
Apr 13, 2021
Seiko Epson Corporation
Koichi Akiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source apparatus and projector
Patent number
10,884,330
Issue date
Jan 5, 2021
Seiko Epson Corporation
Tetsuo Shimizu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength conversion element, method for producing wavelength conv...
Patent number
10,859,899
Issue date
Dec 8, 2020
Seiko Epson Corporation
Kunihiko Takagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source unit, illuminator, and projector
Patent number
10,585,343
Issue date
Mar 10, 2020
Seiko Epson Corporation
Wataru Yasumatsu
F21 - LIGHTING
Information
Patent Grant
Illumination device and projector
Patent number
10,551,727
Issue date
Feb 4, 2020
Seiko Epson Corporation
Wataru Yasumatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source device and projector
Patent number
10,534,248
Issue date
Jan 14, 2020
Seiko Epson Corporation
Wataru Yasumatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Illuminator and projector
Patent number
10,474,021
Issue date
Nov 12, 2019
Seiko Epson Corporation
Wataru Yasumatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source device and projector
Patent number
10,451,959
Issue date
Oct 22, 2019
Seiko Epson Corporation
Shunji Kamijima
G02 - OPTICS
Information
Patent Grant
Wavelength conversion element, light source device, and projector
Patent number
9,785,040
Issue date
Oct 10, 2017
Seiko Epson Corporation
Wataru Yasumatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source apparatus that irradiates a phosphor layer with excita...
Patent number
9,423,680
Issue date
Aug 23, 2016
Seiko Epson Corporation
Hidefumi Sakata
F21 - LIGHTING
Patents Applications
last 30 patents
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTOR
Publication number
20240134259
Publication date
Apr 25, 2024
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE DEVICE, PROJECTOR, AND DISPLAY DEVICE
Publication number
20220109813
Publication date
Apr 7, 2022
SEIKO EPSON CORPORATION
Wataru YASUMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, PROJECTOR, AND...
Publication number
20210286253
Publication date
Sep 16, 2021
SEIKO EPSON CORPORATION
Koya SHIRATORI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, PROJECTOR, AND...
Publication number
20210286245
Publication date
Sep 16, 2021
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE APPARATUS AND PROJECTOR
Publication number
20210216004
Publication date
Jul 15, 2021
SEIKO EPSON CORPORATION
Wataru YASUMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTOR
Publication number
20210191247
Publication date
Jun 24, 2021
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTOR
Publication number
20210165312
Publication date
Jun 3, 2021
SEIKO EPSON CORPORATION
Wataru YASUMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH CONVERTER, LIGHT SOURCE APPARATUS, AND PROJECTOR
Publication number
20200409248
Publication date
Dec 31, 2020
SEIKO EPSON CORPORATION
Wataru YASUMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ILLUMINATOR AND PROJECTOR
Publication number
20200310237
Publication date
Oct 1, 2020
SEIKO EPSON CORPORATION
Koichi AKIYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE APPARATUS AND PROJECTOR
Publication number
20200064721
Publication date
Feb 27, 2020
SEIKO EPSON CORPORATION
Tetsuo SHIMIZU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTOR
Publication number
20190278163
Publication date
Sep 12, 2019
SEIKO EPSON CORPORATION
Wataru YASUMATSU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH CONVERSION ELEMENT, METHOD FOR PRODUCING WAVELENGTH CONV...
Publication number
20190041733
Publication date
Feb 7, 2019
SEIKO EPSON CORPORATION
Kunihiko TAKAGI
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTOR
Publication number
20190041737
Publication date
Feb 7, 2019
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE DEVICE AND PROJECTOR
Publication number
20190041739
Publication date
Feb 7, 2019
SEIKO EPSON CORPORATION
Shunji KAMIJIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ILLUMINATION DEVICE AND PROJECTOR
Publication number
20180239232
Publication date
Aug 23, 2018
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ILLUMINATOR AND PROJECTOR
Publication number
20180088453
Publication date
Mar 29, 2018
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE UNIT, ILLUMINATOR, AND PROJECTOR
Publication number
20180031959
Publication date
Feb 1, 2018
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G02 - OPTICS
Information
Patent Application
WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR
Publication number
20160377968
Publication date
Dec 29, 2016
SEIKO EPSON CORPORATION
Wataru YASUMATSU
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE APPARATUS AND PROJECTOR
Publication number
20150029466
Publication date
Jan 29, 2015
SEIKO EPSON CORPORATION
Hidefumi SAKATA
F21 - LIGHTING