Keiichiroh YUTANI

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electrochromic element and electrochromic light control device
- Patent number 11,774,826
- Issue date Oct 3, 2023
- Ricoh Company, Ltd.
- Keiichiroh Yutani
- G02 - OPTICS
Information Patent Grant
Electrochromic device, wearable device, and method for driving elec...
- Patent number 11,754,901
- Issue date Sep 12, 2023
- Ricoh Company, Ltd.
- Tohru Yashiro
- G02 - OPTICS
Information Patent Grant
Electrochromic device, control device of electrochromic device, and...
- Patent number 11,681,196
- Issue date Jun 20, 2023
- Ricoh Company, Ltd.
- Tohru Hasegawa
- G02 - OPTICS
Information Patent Grant
Electrochromic element and production method thereof, electrochromi...
- Patent number 11,630,365
- Issue date Apr 18, 2023
- Ricoh Company, Ltd.
- Keiichiroh Yutani
- G02 - OPTICS
Information Patent Grant
Electronic device, method for producing electronic device, and phot...
- Patent number 11,474,408
- Issue date Oct 18, 2022
- Ricoh Company, Ltd.
- Yasuhiro Takahashi
- G02 - OPTICS
Information Patent Grant
Electrochromic element
- Patent number 11,237,447
- Issue date Feb 1, 2022
- Ricoh Company, Ltd.
- Keiichiroh Yutani
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Electrochromic device
- Patent number 11,221,533
- Issue date Jan 11, 2022
- Ricoh Company, Ltd.
- Kohji Takeuchi
- G02 - OPTICS
Information Patent Grant
Electrochromic element and electrochromic dimming element
- Patent number 11,209,713
- Issue date Dec 28, 2021
- Ricoh Company, Ltd.
- Satoshi Yamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrochromic device, electronic dimming eyeglasses, augmented rea...
- Patent number 11,106,106
- Issue date Aug 31, 2021
- Ricoh Company, Ltd.
- Noboru Sasa
- G02 - OPTICS
Information Patent Grant
Electrochromic compound, electrochromic composition, and display el...
- Patent number 11,053,267
- Issue date Jul 6, 2021
- Ricoh Company, Ltd.
- Toshiya Sagisaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electrochromic compound, electrochromic composition, and display el...
- Patent number 10,626,133
- Issue date Apr 21, 2020
- Ricoh Company, Ltd.
- Toshiya Sagisaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electrochromic element, display device and driving method thereof
- Patent number 10,527,905
- Issue date Jan 7, 2020
- Ricoh Company, Ltd.
- Fuminari Kaneko
- G02 - OPTICS
Information Patent Grant
Electrochromic device and production method thereof
- Patent number 10,495,937
- Issue date Dec 3, 2019
- Ricoh Company, Ltd.
- Tohru Yashiro
- G02 - OPTICS
Information Patent Grant
Electrochromic dimming device and electrochromic driving device
- Patent number 10,281,793
- Issue date May 7, 2019
- Ricoh Company, Ltd.
- Atsushi Ohshima
- G02 - OPTICS
Information Patent Grant
Electrochromic device and electrochromic dimming device
- Patent number 10,126,623
- Issue date Nov 13, 2018
- Ricoh Company, Ltd.
- Shun Goto
- G02 - OPTICS
Information Patent Grant
Electrochromic compound, electrochromic composition, and display el...
- Patent number 10,093,693
- Issue date Oct 9, 2018
- Ricoh Company, Ltd.
- Toshiya Sagisaka
- G02 - OPTICS
Information Patent Grant
Electrochromic display device
- Patent number 10,012,885
- Issue date Jul 3, 2018
- Ricoh Company, Ltd.
- Yoshinori Okada
- G02 - OPTICS
Information Patent Grant
Electrochromic compound, electrochromic composition, display elemen...
- Patent number 9,932,522
- Issue date Apr 3, 2018
- Ricoh Company, Ltd.
- Daisuke Goto
- G02 - OPTICS
Information Patent Grant
Electrochromic device and method for producing electrochromic device
- Patent number 9,891,497
- Issue date Feb 13, 2018
- Ricoh Company, Ltd.
- Tohru Yashiro
- G02 - OPTICS
Information Patent Grant
Electrochromic display device
- Patent number 9,891,496
- Issue date Feb 13, 2018
- Ricoh Company, Ltd.
- Yoshinori Okada
- G02 - OPTICS
Information Patent Grant
Electrochromic apparatus, electrochromic element, and method of man...
- Patent number 9,869,918
- Issue date Jan 16, 2018
- Ricoh Company, Ltd.
- Takahiko Matsumoto
- G02 - OPTICS
Information Patent Grant
Electrochromic display element, display device, information system,...
- Patent number 9,829,762
- Issue date Nov 28, 2017
- Ricoh Company, Ltd.
- Hiroyuki Takahashi
- G02 - OPTICS
Information Patent Grant
Electrochromic compound, electrochromic composition, display elemen...
- Patent number 9,688,706
- Issue date Jun 27, 2017
- Ricoh Company, Ltd.
- Mamiko Inoue
- G02 - OPTICS
Information Patent Grant
Electrochromic display device with intermediate display electrode c...
- Patent number 9,632,385
- Issue date Apr 25, 2017
- Ricoh Company, Ltd.
- Yoshinori Okada
- G02 - OPTICS
Information Patent Grant
Electrochromic display element and image display device
- Patent number 9,500,926
- Issue date Nov 22, 2016
- Ricoh Company, Ltd.
- Koh Fujimura
- G02 - OPTICS
Information Patent Grant
Electrochromic device and production method thereof
- Patent number 9,304,368
- Issue date Apr 5, 2016
- Ricoh Company, Ltd.
- Tohru Yashiro
- G02 - OPTICS
Information Patent Grant
Electrochromic display element and display device
- Patent number 9,069,222
- Issue date Jun 30, 2015
- Ricoh Company, Ltd.
- Yoshihisa Naijo
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
ELECTROCHROMIC ELEMENT AND ELECTROCHROMIC LIGHT CONTROL DEVICE
- Publication number 20220035218
- Publication date Feb 3, 2022
- RICOH COMPANY, LTD.
- Keiichiroh YUTANI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTROCHROMIC ELEMENT AND PRODUCTION METHOD THEREOF, ELECTROCHROMI...
- Publication number 20210165296
- Publication date Jun 3, 2021
- Keiichiroh YUTANI
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DEVICE, CONTROL DEVICE OF ELECTROCHROMIC DEVICE, AND...
- Publication number 20210033939
- Publication date Feb 4, 2021
- Tohru HASEGAWA
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT AND SPECTACLES
- Publication number 20200409182
- Publication date Dec 31, 2020
- Yuuya ENDOH
- G02 - OPTICS
Information Patent Application
ELECTRONIC DEVICE, METHOD FOR PRODUCING ELECTRONIC DEVICE, AND PHOT...
- Publication number 20200301227
- Publication date Sep 24, 2020
- Yasuhiro TAKAHASHI
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DEVICE, WEARABLE DEVICE, AND METHOD FOR DRIVING ELEC...
- Publication number 20200301226
- Publication date Sep 24, 2020
- Tohru YASHIRO
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...
- Publication number 20200216478
- Publication date Jul 9, 2020
- Toshiya Sagisaka
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ELECTROCHROMIC DEVICE, ELECTRONIC DIMMING EYEGLASSES, AUGMENTED REA...
- Publication number 20190285960
- Publication date Sep 19, 2019
- Noboru SASA
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC ELEMENT
- Publication number 20190227401
- Publication date Jul 25, 2019
- RICOH COMPANY, LTD.
- Keiichiroh YUTANI
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...
- Publication number 20190031694
- Publication date Jan 31, 2019
- Toshiya Sagisaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTROCHROMIC DEVICE
- Publication number 20180299740
- Publication date Oct 18, 2018
- Kohji TAKEUCHI
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC ELEMENT, DISPLAY DEVICE AND DRIVING METHOD THEREOF
- Publication number 20180113366
- Publication date Apr 26, 2018
- RICOH COMPANY, LTD.
- Fuminari KANEKO
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DEVICE AND PRODUCTION METHOD THEREOF
- Publication number 20170329197
- Publication date Nov 16, 2017
- RICOH COMPANY, LTD.
- Tohru YASHIRO
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC ELEMENT AND ELECTROCHROMIC DIMMING ELEMENT
- Publication number 20170235203
- Publication date Aug 17, 2017
- RICOH COMPANY, LTD.
- Satoshi YAMAMOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMEN...
- Publication number 20170226413
- Publication date Aug 10, 2017
- Daisuke GOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTROCHROMIC DEVICE AND ELECTROCHROMIC DIMMING DEVICE
- Publication number 20170176833
- Publication date Jun 22, 2017
- RICOH COMPANY, LTD.
- Shun GOTO
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DISPLAY DEVICE
- Publication number 20170131609
- Publication date May 11, 2017
- RICOH COMANY, LTD.
- Yoshinori OKADA
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DEVICE AND METHOD FOR PRODUCING ELECTROCHROMIC DEVICE
- Publication number 20170010514
- Publication date Jan 12, 2017
- RICOH COMPANY, LTD.
- Tohru YASHIRO
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DIMMING DEVICE AND ELECTROCHROMIC DRIVING DEVICE
- Publication number 20160349590
- Publication date Dec 1, 2016
- RICOH COMPANY, LTD.
- Atsushi OHSHIMA
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC APPARATUS, ELECTROCHROMIC ELEMENT, AND METHOD OF MAN...
- Publication number 20160209721
- Publication date Jul 21, 2016
- Takahiko Matsumoto
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMEN...
- Publication number 20160108072
- Publication date Apr 21, 2016
- RICOH COMPANY, LTD.
- Mamiko INOUE
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTROCHROMIC DISPLAY DEVICE, AND PRODUCING METHOD AND DRIVING MET...
- Publication number 20160005375
- Publication date Jan 7, 2016
- RICOH COMPANY, LTD.
- Yoshihisa Naijo
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DISPLAY ELEMENT AND IMAGE DISPLAY DEVICE
- Publication number 20150378233
- Publication date Dec 31, 2015
- Koh FUJIMURA
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DISPLAY ELEMENT, DISPLAY DEVICE, INFORMATION SYSTEM,...
- Publication number 20150331295
- Publication date Nov 19, 2015
- RICOH COMPANY, LTD.
- Hiroyuki Takahashi
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...
- Publication number 20150274761
- Publication date Oct 1, 2015
- Toshiya Sagisaka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ELECTROCHROMIC DEVICE AND PRODUCTION METHOD THEREOF
- Publication number 20150198857
- Publication date Jul 16, 2015
- RICOH COMPANY, LTD.
- Tohru Yashiro
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DEVICE AND A METHOD FOR MANUFACTURING AN ELECTROCHRO...
- Publication number 20150168796
- Publication date Jun 18, 2015
- RICOH COMPANY, LTD.
- Tohru Yashiro
- G02 - OPTICS
Information Patent Application
ELECTROCHROMIC DISPLAY ELEMENT AND DISPLAY DEVICE
- Publication number 20140268284
- Publication date Sep 18, 2014
- RICOH COMPANY, LTD.
- Yoshihisa Naijo
- G02 - OPTICS
Information Patent Application
SOLID DYE SENSITIZATION TYPE SOLAR CELL AND SOLID DYE SENSITIZATION...
- Publication number 20140212705
- Publication date Jul 31, 2014
- RICOH COMPANY, LTD.
- Tamotsu Horiuchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTROCHROMIC DISPLAY DEVICE AND A METHOD FOR MANUFACTURING AN ELE...
- Publication number 20130250394
- Publication date Sep 26, 2013
- RICOH COMPANY, LTD.
- Yoshinori Okada
- G02 - OPTICS

Keiichiroh YUTANI

Person

Patents Grantslast 30 patents

Electrochromic element and electrochromic light control device

Electrochromic device, wearable device, and method for driving elec...

Electrochromic device, control device of electrochromic device, and...

Electrochromic element and production method thereof, electrochromi...

Electronic device, method for producing electronic device, and phot...

Electrochromic element

Electrochromic device

Electrochromic element and electrochromic dimming element

Electrochromic device, electronic dimming eyeglasses, augmented rea...

Electrochromic compound, electrochromic composition, and display el...

Electrochromic compound, electrochromic composition, and display el...

Electrochromic element, display device and driving method thereof

Electrochromic device and production method thereof

Electrochromic dimming device and electrochromic driving device

Electrochromic device and electrochromic dimming device

Electrochromic compound, electrochromic composition, and display el...

Electrochromic display device

Electrochromic compound, electrochromic composition, display elemen...

Electrochromic device and method for producing electrochromic device

Electrochromic display device

Electrochromic apparatus, electrochromic element, and method of man...

Electrochromic display element, display device, information system,...

Electrochromic compound, electrochromic composition, display elemen...

Electrochromic display device with intermediate display electrode c...

Electrochromic display element and image display device

Electrochromic device and production method thereof

Electrochromic display element and display device

Patents Applicationslast 30 patents

ELECTROCHROMIC ELEMENT AND ELECTROCHROMIC LIGHT CONTROL DEVICE

ELECTROCHROMIC ELEMENT AND PRODUCTION METHOD THEREOF, ELECTROCHROMI...

ELECTROCHROMIC DEVICE, CONTROL DEVICE OF ELECTROCHROMIC DEVICE, AND...

OPTICAL ELEMENT AND SPECTACLES

ELECTRONIC DEVICE, METHOD FOR PRODUCING ELECTRONIC DEVICE, AND PHOT...

ELECTROCHROMIC DEVICE, WEARABLE DEVICE, AND METHOD FOR DRIVING ELEC...

ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...

ELECTROCHROMIC DEVICE, ELECTRONIC DIMMING EYEGLASSES, AUGMENTED REA...

ELECTROCHROMIC ELEMENT

ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...

ELECTROCHROMIC DEVICE

ELECTROCHROMIC ELEMENT, DISPLAY DEVICE AND DRIVING METHOD THEREOF

ELECTROCHROMIC DEVICE AND PRODUCTION METHOD THEREOF

ELECTROCHROMIC ELEMENT AND ELECTROCHROMIC DIMMING ELEMENT

ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMEN...

ELECTROCHROMIC DEVICE AND ELECTROCHROMIC DIMMING DEVICE

ELECTROCHROMIC DISPLAY DEVICE

ELECTROCHROMIC DEVICE AND METHOD FOR PRODUCING ELECTROCHROMIC DEVICE

ELECTROCHROMIC DIMMING DEVICE AND ELECTROCHROMIC DRIVING DEVICE

ELECTROCHROMIC APPARATUS, ELECTROCHROMIC ELEMENT, AND METHOD OF MAN...

ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, DISPLAY ELEMEN...

ELECTROCHROMIC DISPLAY DEVICE, AND PRODUCING METHOD AND DRIVING MET...

ELECTROCHROMIC DISPLAY ELEMENT AND IMAGE DISPLAY DEVICE

ELECTROCHROMIC DISPLAY ELEMENT, DISPLAY DEVICE, INFORMATION SYSTEM,...

ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...

ELECTROCHROMIC DEVICE AND PRODUCTION METHOD THEREOF

ELECTROCHROMIC DEVICE AND A METHOD FOR MANUFACTURING AN ELECTROCHRO...

ELECTROCHROMIC DISPLAY ELEMENT AND DISPLAY DEVICE

SOLID DYE SENSITIZATION TYPE SOLAR CELL AND SOLID DYE SENSITIZATION...

ELECTROCHROMIC DISPLAY DEVICE AND A METHOD FOR MANUFACTURING AN ELE...