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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Projection apparatus and operation detection apparatus
Patent number
11,652,969
Issue date
May 16, 2023
Ricoh Company, Ltd.
Jun Mashimo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source module, optical device, and method for producing light...
Patent number
10,996,458
Issue date
May 4, 2021
Ricoh Company, Ltd.
Jun Mashimo
F21 - LIGHTING
Information
Patent Grant
Light source module, optical device, and method for producing light...
Patent number
10,775,606
Issue date
Sep 15, 2020
Ricoh Company, Ltd.
Jun Mashimo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image formation unit and image projection apparatus
Patent number
10,277,871
Issue date
Apr 30, 2019
Ricoh Company, Ltd.
Akihisa Mikawa
G02 - OPTICS
Information
Patent Grant
Light source device, image projector, and method for disposing ligh...
Patent number
10,036,943
Issue date
Jul 31, 2018
Ricoh Company, Ltd.
Takehiro Nishimori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Holding structure for holding reflecting mirror, projection optical...
Patent number
9,964,733
Issue date
May 8, 2018
Ricoh Company, Ltd.
Tetsuya Fujioka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image projection apparatus
Patent number
9,961,310
Issue date
May 1, 2018
Ricoh Company, Ltd.
Akihisa Mikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High resolution image projection apparatus with horizontally actuat...
Patent number
9,952,486
Issue date
Apr 24, 2018
Ricoh Company, Ltd.
Akihisa Mikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image projection device and image projection method to control an i...
Patent number
9,864,262
Issue date
Jan 9, 2018
Ricoh Company, Ltd.
Tetsuya Fujioka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Projection lens unit, optical engine, and image projecting apparatus
Patent number
9,829,671
Issue date
Nov 28, 2017
Ricoh Company, Ltd.
Satoshi Tsuchiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image projection apparatus
Patent number
9,787,956
Issue date
Oct 10, 2017
Ricoh Company, Ltd.
Yukimi Nishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Illumination optical system, optical engine, and image projection a...
Patent number
9,778,551
Issue date
Oct 3, 2017
Ricoh Company, Ltd.
Satoshi Tsuchiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Cooling device, cooling structure, image projection device, and ele...
Patent number
9,541,818
Issue date
Jan 10, 2017
Ricoh Company, Ltd.
Akihisa Mikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
LIGHT SOURCE DEVICE AND DISPLAY APPARATUS
Publication number
20240004275
Publication date
Jan 4, 2024
RICOH COMPANY, LTD.
Jun MASHIMO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE DEVICE AND DISPLAY APPARATUS
Publication number
20230266652
Publication date
Aug 24, 2023
Tomoya FUJII
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20230209025
Publication date
Jun 29, 2023
Jun MASHIMO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROJECTION APPARATUS AND OPERATION DETECTION APPARATUS
Publication number
20210250563
Publication date
Aug 12, 2021
RICOH COMPANY, LTD.
Jun MASHIMO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHT SOURCE MODULE, OPTICAL DEVICE, AND METHOD FOR PRODUCING LIGHT...
Publication number
20200371342
Publication date
Nov 26, 2020
JUN MASHIMO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LIGHT SOURCE MODULE, OPTICAL DEVICE, AND METHOD FOR PRODUCING LIGHT...
Publication number
20190391385
Publication date
Dec 26, 2019
JUN MASHIMO
G02 - OPTICS
Information
Patent Application
IMAGE PROJECTOR AND IMAGE PROJECTING SYSTEM INCORPORATING SAME
Publication number
20180143516
Publication date
May 24, 2018
RICOH COMPANY, LTD.
Takehiro NISHIMORI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PROJECTION OPTICAL DEVICE, IMAGE PROJECTION APPARATUS, AND ADJUSTER
Publication number
20180120678
Publication date
May 3, 2018
RICOH COMPANY, LTD.
Yasunari MIKUTSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LIGHT SOURCE DEVICE, IMAGE PROJECTOR, AND METHOD FOR DISPOSING LIGH...
Publication number
20180059521
Publication date
Mar 1, 2018
RICOH COMPANY, LTD.
Takehiro NISHIMORI
F21 - LIGHTING
Information
Patent Application
IMAGE FORMATION UNIT AND IMAGE PROJECTION APPARATUS
Publication number
20170244940
Publication date
Aug 24, 2017
RICOH COMPANY, LTD.
Akihisa MIKAWA
G02 - OPTICS
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20170068152
Publication date
Mar 9, 2017
Akihisa Mikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20170068150
Publication date
Mar 9, 2017
Takehiro NISHIMORI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20170068151
Publication date
Mar 9, 2017
Akihisa Mikawa
G02 - OPTICS
Information
Patent Application
PROJECTION LENS UNIT, OPTICAL ENGINE, AND IMAGE PROJECTING APPARATUS
Publication number
20170031127
Publication date
Feb 2, 2017
RICOH COMPANY, LTD.
Satoshi TSUCHIYA
G02 - OPTICS
Information
Patent Application
HOLDING STRUCTURE FOR HOLDING REFLECTING MIRROR, PROJECTION OPTICAL...
Publication number
20170031132
Publication date
Feb 2, 2017
RICOH COMPANY, LTD.
Tetsuya FUJIOKA
G02 - OPTICS
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20170026623
Publication date
Jan 26, 2017
RICOH COMPANY, LTD.
Yukimi NISHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ILLUMINATION OPTICAL SYSTEM, OPTICAL ENGINE, AND IMAGE PROJECTION A...
Publication number
20160377963
Publication date
Dec 29, 2016
RICOH COMPANY, LTD.
Satoshi TSUCHIYA
G02 - OPTICS
Information
Patent Application
IMAGE PROJECTION APPARATUS, AND LIGHT SOURCE UNIT
Publication number
20160274444
Publication date
Sep 22, 2016
Yasunari MIKUTSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20160277716
Publication date
Sep 22, 2016
RICOH COMPANY, LTD.
Akihisa MIKAWA
G02 - OPTICS
Information
Patent Application
IMAGE PROJECTION APPARATUS
Publication number
20160198134
Publication date
Jul 7, 2016
Akihisa MIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMAGE PROJECTION DEVICE AND IMAGE PROJECTION METHOD
Publication number
20160154294
Publication date
Jun 2, 2016
Tetsuya FUJIOKA
G02 - OPTICS
Information
Patent Application
COOLING DEVICE, COOLING STRUCTURE, IMAGE PROJECTION DEVICE, AND ELE...
Publication number
20160062219
Publication date
Mar 3, 2016
RICOH COMPANY, LTD.
Akihisa MIKAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY