Ryota ARAI

Person

Shizuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Photoelectric conversion element, device, and power supply module
- Patent number 12,041,797
- Issue date Jul 16, 2024
- Ricoh Company, Ltd.
- Ryota Arai
Information Patent Grant
Organic material and photoelectric conversion element
- Patent number 11,950,503
- Issue date Apr 2, 2024
- Ricoh Company, Ltd.
- Ryota Arai
Information Patent Grant
Photoelectric conversion module, electronic device, and power suppl...
- Patent number 11,832,461
- Issue date Nov 28, 2023
- Ricoh Company, Ltd.
- Takaya Ito
Information Patent Grant
Photoelectric conversion element
- Patent number 11,069,485
- Issue date Jul 20, 2021
- Ricoh Company, Ltd.
- Naomichi Kanei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric conversion element
- Patent number 10,763,050
- Issue date Sep 1, 2020
- Ricoh Company, Ltd.
- Yuuji Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric conversion element
- Patent number 10,727,001
- Issue date Jul 28, 2020
- Ricoh Company, Ltd.
- Naomichi Kanei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric conversion element
- Patent number 10,686,134
- Issue date Jun 16, 2020
- Ricoh Company, Ltd.
- Ryota Arai
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Tertiary amine compound, photoelectric conversion element, and sola...
- Patent number 10,651,390
- Issue date May 12, 2020
- Ricoh Company, Ltd.
- Tsuyoshi Matsuyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic compound and photoelectric conversion element
- Patent number 10,629,826
- Issue date Apr 21, 2020
- Ricoh Company, Ltd.
- Ryota Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Organic material and photoelectric conversion element
- Patent number 10,062,854
- Issue date Aug 28, 2018
- Ricoh Company, Ltd.
- Ryota Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Substituent-eliminable diketopyrrolopyrrole derivative, organic sem...
- Patent number 9,590,187
- Issue date Mar 7, 2017
- Ricoh Company, Ltd.
- Ryota Arai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solution, organic semiconductor material, organic semiconductor fil...
- Patent number 9,406,887
- Issue date Aug 2, 2016
- Ricoh Company, Ltd.
- Ryota Arai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photoelectric conversion element
- Patent number 9,378,899
- Issue date Jun 28, 2016
- Ricoh Company, Ltd.
- Ryota Arai
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Photoelectric conversion element
- Patent number 9,373,450
- Issue date Jun 21, 2016
- Ricoh Company, Ltd.
- Ryota Arai
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Fullerene derivative, and method of preparing the same
- Patent number 9,365,513
- Issue date Jun 14, 2016
- Ricoh Company, Ltd.
- Yoshiki Yanagawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic material and photoelectric conversion element
- Patent number 9,246,110
- Issue date Jan 26, 2016
- Ricoh Company, Ltd.
- Ryota Arai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Amine compound, electrophotographic photoconductor, image forming m...
- Patent number 9,040,215
- Issue date May 26, 2015
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxygallium porphyrazine derivative mixture and electrophotograp...
- Patent number 9,005,856
- Issue date Apr 14, 2015
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image bearing member, image forming method, image forming apparatus...
- Patent number 8,889,324
- Issue date Nov 18, 2014
- Ricoh Company, Ltd.
- Ryota Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor, electrophotographic image formin...
- Patent number 8,809,543
- Issue date Aug 19, 2014
- Ricoh Company, Ltd.
- Ryota Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor, electrophotographic method, and...
- Patent number 8,586,270
- Issue date Nov 19, 2013
- Ricoh Company, Ltd.
- Ryota Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor, electrophotographic image formin...
- Patent number 8,304,153
- Issue date Nov 6, 2012
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION MODULE,...
- Publication number 20240206200
- Publication date Jun 20, 2024
- RICOH COMPANY, LTD.
- Takaya Ito
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION ELEMENT...
- Publication number 20230232642
- Publication date Jul 20, 2023
- Takaya ITO
Information Patent Application
PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC DEVICE, AND POWER SUPPL...
- Publication number 20230102880
- Publication date Mar 30, 2023
- Tomoya HIRANO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION MODULE, ELECTRONIC DEVICE, AND POWER SUPPL...
- Publication number 20220173165
- Publication date Jun 2, 2022
- Takaya ITO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION MODULE, ELECTRONIC DEVICE, AND POWER SUPPL...
- Publication number 20220173263
- Publication date Jun 2, 2022
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT, DEVICE, AND POWER SUPPLY MODULE
- Publication number 20220102650
- Publication date Mar 31, 2022
- RICOH COMPANY, LTD.
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT, DEVICE, AND POWER SUPPLY MODULE
- Publication number 20220029116
- Publication date Jan 27, 2022
- RICOH COMPANY, LTD.
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION ELEMENT...
- Publication number 20210296603
- Publication date Sep 23, 2021
- RICOH COMPANY, LTD.
- Ryota ARAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ORGANIC MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20210043846
- Publication date Feb 11, 2021
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20200303133
- Publication date Sep 24, 2020
- Naomichi KANEI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20180330890
- Publication date Nov 15, 2018
- Yuuji Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TERTIARY AMINE COMPOUND, PHOTOELECTRIC CONVERSION ELEMENT, AND SOLA...
- Publication number 20170358399
- Publication date Dec 14, 2017
- RICOH COMPANY, LTD.
- Tsuyoshi MATSUYAMA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ORGANIC MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20170338424
- Publication date Nov 23, 2017
- RICOH COMPANY, LTD.
- Ryota ARAI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20170243698
- Publication date Aug 24, 2017
- RICOH COMPANY, LTD.
- Naomichi KANEI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20170222150
- Publication date Aug 3, 2017
- RICOH COMPANY, LTD.
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20170092433
- Publication date Mar 30, 2017
- RICOH COMPANY, LTD.
- Naomichi KANEI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ORGANIC COMPOUND AND PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20160260912
- Publication date Sep 8, 2016
- RICOH COMPANY, LTD.
- Ryota ARAI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ORGANIC MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20150280142
- Publication date Oct 1, 2015
- RICOH COMPANY, LTD.
- Ryota ARAI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
FULLERENE DERIVATIVE, AND METHOD OF PREPARING THE SAME
- Publication number 20150158814
- Publication date Jun 11, 2015
- Yoshiki YANAGAWA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20150083210
- Publication date Mar 26, 2015
- RICOH COMPANY, LTD.
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOTOELECTRIC CONVERSION ELEMENT
- Publication number 20150083226
- Publication date Mar 26, 2015
- RICOH COMPANY, LTD.
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SUBSTITUENT-ELIMINABLE DIKETOPYRROLOPYRROLE DERIVATIVE, ORGANIC SEM...
- Publication number 20150041724
- Publication date Feb 12, 2015
- RICOH COMPANY, LTD.
- Ryota Arai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SOLUTION, ORGANIC SEMICONDUCTOR MATERIAL, ORGANIC SEMICONDUCTOR FIL...
- Publication number 20140264184
- Publication date Sep 18, 2014
- RICOH COMPANY, LTD.
- Ryota ARAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20140234763
- Publication date Aug 21, 2014
- Akihiro SUGINO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
AMINE COMPOUND, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING M...
- Publication number 20130202994
- Publication date Aug 8, 2013
- Tomoyuki SHIMADA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, ELECTROPHOTOGRAPHIC METHOD, AND...
- Publication number 20120251934
- Publication date Oct 4, 2012
- Ryota ARAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HYDROXYGALLIUM PORPHYRAZINE DERIVATIVE MIXTURE AND ELECTROPHOTOGRAP...
- Publication number 20120231380
- Publication date Sep 13, 2012
- Tomoyuki Shimada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC IMAGE FORMIN...
- Publication number 20120064443
- Publication date Mar 15, 2012
- Ryota ARAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE BEARING MEMBER, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS...
- Publication number 20110200925
- Publication date Aug 18, 2011
- Ryota ARAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC IMAGE FORMIN...
- Publication number 20110059392
- Publication date Mar 10, 2011
- RICOH COMPANY, LTD.
- Tomoyuki SHIMADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Person

Patents Grantslast 30 patents

Photoelectric conversion element, device, and power supply module

Organic material and photoelectric conversion element

Photoelectric conversion module, electronic device, and power suppl...

Photoelectric conversion element

Photoelectric conversion element

Photoelectric conversion element

Photoelectric conversion element

Tertiary amine compound, photoelectric conversion element, and sola...

Organic compound and photoelectric conversion element

Organic material and photoelectric conversion element

Substituent-eliminable diketopyrrolopyrrole derivative, organic sem...

Solution, organic semiconductor material, organic semiconductor fil...

Photoelectric conversion element

Photoelectric conversion element

Fullerene derivative, and method of preparing the same

Organic material and photoelectric conversion element

Amine compound, electrophotographic photoconductor, image forming m...

Hydroxygallium porphyrazine derivative mixture and electrophotograp...

Image bearing member, image forming method, image forming apparatus...

Electrophotographic photoreceptor, electrophotographic image formin...

Electrophotographic photoconductor, electrophotographic method, and...

Electrophotographic photoreceptor, electrophotographic image formin...

Patents Applicationslast 30 patents

PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION MODULE,...

PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION ELEMENT...

PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC DEVICE, AND POWER SUPPL...

PHOTOELECTRIC CONVERSION MODULE, ELECTRONIC DEVICE, AND POWER SUPPL...

PHOTOELECTRIC CONVERSION MODULE, ELECTRONIC DEVICE, AND POWER SUPPL...

PHOTOELECTRIC CONVERSION ELEMENT, DEVICE, AND POWER SUPPLY MODULE

PHOTOELECTRIC CONVERSION ELEMENT, DEVICE, AND POWER SUPPLY MODULE

PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION ELEMENT...

ORGANIC MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT

PHOTOELECTRIC CONVERSION ELEMENT

PHOTOELECTRIC CONVERSION ELEMENT

TERTIARY AMINE COMPOUND, PHOTOELECTRIC CONVERSION ELEMENT, AND SOLA...

ORGANIC MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT

PHOTOELECTRIC CONVERSION ELEMENT

PHOTOELECTRIC CONVERSION ELEMENT

PHOTOELECTRIC CONVERSION ELEMENT

ORGANIC COMPOUND AND PHOTOELECTRIC CONVERSION ELEMENT

ORGANIC MATERIAL AND PHOTOELECTRIC CONVERSION ELEMENT

FULLERENE DERIVATIVE, AND METHOD OF PREPARING THE SAME

PHOTOELECTRIC CONVERSION ELEMENT

PHOTOELECTRIC CONVERSION ELEMENT

SUBSTITUENT-ELIMINABLE DIKETOPYRROLOPYRROLE DERIVATIVE, ORGANIC SEM...

SOLUTION, ORGANIC SEMICONDUCTOR MATERIAL, ORGANIC SEMICONDUCTOR FIL...

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

AMINE COMPOUND, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING M...

ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, ELECTROPHOTOGRAPHIC METHOD, AND...

HYDROXYGALLIUM PORPHYRAZINE DERIVATIVE MIXTURE AND ELECTROPHOTOGRAP...

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC IMAGE FORMIN...

IMAGE BEARING MEMBER, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS...

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC IMAGE FORMIN...