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Naoki NAKAMURA
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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Light guide, virtual image optical system, and virtual image displa...
Patent number
11,885,997
Issue date
Jan 30, 2024
Ricoh Company, Ltd.
Shiori Ohsugi
G02 - OPTICS
Information
Patent Grant
Head-mounted display device with adjuster
Patent number
11,656,461
Issue date
May 23, 2023
Ricoh Company, Ltd.
Aino Hasegawa
G02 - OPTICS
Information
Patent Grant
Light source optical system, light source device, and image project...
Patent number
11,640,106
Issue date
May 2, 2023
Ricoh Company, Ltd.
Yohei Takano
G02 - OPTICS
Information
Patent Grant
Optical scanning device, image display device, and vehicle
Patent number
10,852,533
Issue date
Dec 1, 2020
Ricoh Company, Ltd.
Naoki Miyatake
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Image display apparatus and vehicle
Patent number
10,783,606
Issue date
Sep 22, 2020
Ricoh Company, Ltd.
Hiromichi Atsuumi
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Virtual-image forming device and mobile object
Patent number
10,775,620
Issue date
Sep 15, 2020
Ricoh Company, Ltd.
Takahiro Nakayama
G02 - OPTICS
Information
Patent Grant
Light source device and image display apparatus
Patent number
10,725,369
Issue date
Jul 28, 2020
Ricoh Company, Ltd.
Kasumi Nakamura
F21 - LIGHTING
Information
Patent Grant
Image display apparatus
Patent number
10,613,321
Issue date
Apr 7, 2020
Ricoh Company, Ltd.
Naoki Nakamura
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Grant
Texture evaluation apparatus, texture evaluation method, and comput...
Patent number
10,593,031
Issue date
Mar 17, 2020
Ricoh Company, Ltd.
Shuhei Watanabe
G01 - MEASURING TESTING
Information
Patent Grant
Image display apparatus and vehicle
Patent number
10,572,972
Issue date
Feb 25, 2020
Ricoh Company, Ltd.
Hiromichi Atsuumi
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Optical scanning apparatus and image display apparatus
Patent number
10,261,315
Issue date
Apr 16, 2019
Ricoh Company, Ltd.
Naoki Miyatake
G02 - OPTICS
Information
Patent Grant
Light guide, virtual image display device, and light guide unit
Patent number
10,241,333
Issue date
Mar 26, 2019
Ricoh Company, Ltd.
Naoki Nakamura
G02 - OPTICS
Information
Patent Grant
Image display apparatus
Patent number
10,191,274
Issue date
Jan 29, 2019
Ricoh Company, Ltd.
Naoki Nakamura
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Grant
Light guide, virtual image optical system, and virtual image displa...
Patent number
10,088,620
Issue date
Oct 2, 2018
Ricoh Company, Ltd.
Shiori Ohsugi
G02 - OPTICS
Information
Patent Grant
Image display device and apparatus
Patent number
10,078,217
Issue date
Sep 18, 2018
Ricoh Company, Ltd.
Yuki Hayashi
G02 - OPTICS
Information
Patent Grant
Image display apparatus
Patent number
9,864,195
Issue date
Jan 9, 2018
Ricoh Company, Ltd.
Naoki Nakamura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source unit, lighting apparatus and image projection apparatus
Patent number
9,857,672
Issue date
Jan 2, 2018
Ricoh Company, Ltd.
Tatsuya Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Light source unit, lighting apparatus and image projection apparatus
Patent number
9,354,498
Issue date
May 31, 2016
Ricoh Company, Ltd.
Tatsuya Takahashi
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
LIGHT GUIDE MEMBER AND DISPLAY DEVICE
Publication number
20230280592
Publication date
Sep 7, 2023
Naoki NAKAMURA
G02 - OPTICS
Information
Patent Application
LIGHT GUIDE AND VIRTUAL IMAGE DISPLAY DEVICE
Publication number
20230039870
Publication date
Feb 9, 2023
Susumu MOMMA
G02 - OPTICS
Information
Patent Application
LIGHT GUIDE AND VIRTUAL-IMAGE DISPLAY DEVICE
Publication number
20230003931
Publication date
Jan 5, 2023
Naoki NAKAMURA
G02 - OPTICS
Information
Patent Application
LENS UNIT, OPTICAL SYSTEM, AND ELECTRONIC APPARATUS
Publication number
20220252838
Publication date
Aug 11, 2022
Yoshifumi SUDOH
G02 - OPTICS
Information
Patent Application
VIRTUAL IMAGE DISPLAY DEVICE
Publication number
20220057640
Publication date
Feb 24, 2022
Naoki NAKAMURA
G02 - OPTICS
Information
Patent Application
PROPAGATION OPTICAL SYSTEM AND VIRTUAL IMAGE DISPLAY DEVICE
Publication number
20220026716
Publication date
Jan 27, 2022
Ricoh Company, Ltd.
Yoshifumi SUDOH
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE OPTICAL SYSTEM, LIGHT SOURCE DEVICE, AND IMAGE PROJECT...
Publication number
20210389652
Publication date
Dec 16, 2021
Yohei TAKANO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
HEAD-MOUNTED DISPLAY DEVICE
Publication number
20210165221
Publication date
Jun 3, 2021
Aino HASEGAWA
G02 - OPTICS
Information
Patent Application
HEAD-MOUNTED DISPLAY DEVICE AND DISPLAY SYSTEM
Publication number
20200400962
Publication date
Dec 24, 2020
Shigenobu HIRANO
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE DEVICE AND IMAGE DISPLAY APPARATUS
Publication number
20200064719
Publication date
Feb 27, 2020
Kasumi Nakamura
G02 - OPTICS
Information
Patent Application
IMAGE DISPLAY APPARATUS
Publication number
20190204591
Publication date
Jul 4, 2019
RICOH COMPANY, LTD.
Naoki NAKAMURA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE DISPLAY APPARATUS AND VEHICLE
Publication number
20190156454
Publication date
May 23, 2019
Hiromichi ATSUUMI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LIGHT GUIDE, VIRTUAL IMAGE OPTICAL SYSTEM, AND VIRTUAL IMAGE DISPLA...
Publication number
20190004235
Publication date
Jan 3, 2019
Shiori OHSUGI
G02 - OPTICS
Information
Patent Application
OPTICAL SCANNING DEVICE, IMAGE DISPLAY DEVICE, AND VEHICLE
Publication number
20180373025
Publication date
Dec 27, 2018
Naoki MIYATAKE
B60 - VEHICLES IN GENERAL
Information
Patent Application
VIRTUAL-IMAGE FORMING DEVICE AND MOBILE OBJECT
Publication number
20180335624
Publication date
Nov 22, 2018
RICOH COMPANY, LTD.
Takahiro Nakayama
G02 - OPTICS
Information
Patent Application
TEXTURE EVALUATION APPARATUS, TEXTURE EVALUATION METHOD, AND COMPUT...
Publication number
20170270655
Publication date
Sep 21, 2017
Shuhei WATANABE
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
IMAGE DISPLAY APPARATUS
Publication number
20170227761
Publication date
Aug 10, 2017
RICOH COMPANY, LIMITED
Naoki NAKAMURA
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Application
LIGHT GUIDE, VIRTUAL IMAGE DISPLAY DEVICE, AND LIGHT GUIDE UNIT
Publication number
20170192239
Publication date
Jul 6, 2017
Naoki NAKAMURA
G02 - OPTICS
Information
Patent Application
IMAGE DISPLAY APPARATUS AND VEHICLE
Publication number
20170154406
Publication date
Jun 1, 2017
Hiromichi ATSUUMI
B60 - VEHICLES IN GENERAL
Information
Patent Application
LIGHT GUIDE, VIRTUAL IMAGE OPTICAL SYSTEM, AND VIRTUAL IMAGE DISPLA...
Publication number
20170090094
Publication date
Mar 30, 2017
Shiori OHSUGI
G02 - OPTICS
Information
Patent Application
OPTICAL SCANNING APPARATUS AND IMAGE DISPLAY APPARATUS
Publication number
20170003506
Publication date
Jan 5, 2017
Naoki MIYATAKE
B60 - VEHICLES IN GENERAL
Information
Patent Application
IMAGE DISPLAY APPARATUS
Publication number
20160266384
Publication date
Sep 15, 2016
Naoki NAKAMURA
G02 - OPTICS
Information
Patent Application
IMAGE DISPLAY DEVICE AND APPARATUS
Publication number
20160116735
Publication date
Apr 28, 2016
Yuki HAYASHI
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE UNIT, LIGHTING APPARATUS AND IMAGE PROJECTION APPARATUS
Publication number
20140268068
Publication date
Sep 18, 2014
RICOH COMPANY, LTD.
Tatsuya TAKAHASHI
F21 - LIGHTING
Information
Patent Application
LIGHT SOURCE UNIT, LIGHTING APPARATUS AND IMAGE PROJECTION APPARATUS
Publication number
20140268072
Publication date
Sep 18, 2014
RICOH COMPANY, LTD.
Tatsuya TAKAHASHI
G02 - OPTICS