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Patents Grants
last 30 patents
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 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 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 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 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 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
Method for manufacturing an electrochromic display device and an el...
Patent number
9,389,480
Issue date
Jul 12, 2016
Ricoh Company, Ltd.
Yoshihisa Naijo
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
Information
Patent Grant
Electro-chromic display element, display apparatus, and driving method
Patent number
9,041,997
Issue date
May 26, 2015
Ricoh Company, Ltd.
Hiroyuki Takahashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrochromic display device
Patent number
8,937,758
Issue date
Jan 20, 2015
Ricoh Company, Ltd.
Sukchan Kim
G02 - OPTICS
Information
Patent Grant
Controllable electrochromic display device
Patent number
8,902,151
Issue date
Dec 2, 2014
Ricoh Company, Ltd.
Tohru Yashiro
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electrochromic display apparatus and method of manufacturing the same
Patent number
8,736,941
Issue date
May 27, 2014
Ricoh Company, Ltd.
Yoshihisa Naijo
G02 - OPTICS
Information
Patent Grant
Ion conductor and electrochromic display device
Patent number
8,687,262
Issue date
Apr 1, 2014
Ricoh Company, Ltd.
Tohru Yashiro
G02 - OPTICS
Information
Patent Grant
Electrochromic display element
Patent number
8,531,754
Issue date
Sep 10, 2013
Ricoh Company, Ltd.
Koh Fujimura
G02 - OPTICS
Information
Patent Grant
Electrochromic display device, fabrication method therefor, and dri...
Patent number
8,384,983
Issue date
Feb 26, 2013
Ricoh Company, Ltd.
Tohru Yashiro
G02 - OPTICS
Information
Patent Grant
Liquid crystal element, optical path deflecting element, and image...
Patent number
8,158,020
Issue date
Apr 17, 2012
Ricoh Company, Ltd.
Yohei Takano
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Electric field generating device comprising an electric field gener...
Patent number
7,929,071
Issue date
Apr 19, 2011
Ricoh Company, Ltd.
Yukiko Hirano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Layered structure, electron device, and an electron device array ha...
Patent number
7,902,680
Issue date
Mar 8, 2011
Ricoh Company, Ltd.
Takanori Tano
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Layered structure for electron device including regions of differen...
Patent number
7,612,455
Issue date
Nov 3, 2009
Ricoh Company, Ltd.
Takanori Tano
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical axis deflecting method, optical axis deflecting element, op...
Patent number
7,489,383
Issue date
Feb 10, 2009
Ricoh Company, Ltd.
Hiroyuki Sugimoto
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Sealing structure of liquid crystal injection holes in liquid cryst...
Patent number
5,184,239
Issue date
Feb 2, 1993
Ricoh Company, Ltd.
Kazuyoshi Sano
G02 - OPTICS
Information
Patent Grant
Liquid crystal display element
Patent number
5,169,693
Issue date
Dec 8, 1992
Ricoh Company, Ltd.
Koh Fujimura
G02 - OPTICS
Information
Patent Grant
Liquid crystal composition
Patent number
5,030,384
Issue date
Jul 9, 1991
Casio Computer Co., Ltd.
Koh Fujimura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
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 COMPOUND, ELECTROCHROMIC COMPOSITION, AND DISPLAY EL...
Publication number
20200216478
Publication date
Jul 9, 2020
Toshiya Sagisaka
C07 - ORGANIC CHEMISTRY
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 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 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 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
ELECTRO-CHROMIC DISPLAY ELEMENT, DISPLAY APPARATUS, AND DRIVING METHOD
Publication number
20140078569
Publication date
Mar 20, 2014
RICOH COMPANY, LTD.
Hiroyuki Takahashi
G02 - OPTICS
Information
Patent Application
ELECTROCHROMIC DISPLAY DEVICE
Publication number
20130335802
Publication date
Dec 19, 2013
RICOH COMPANY, LTD.
Sukchan Kim
G02 - OPTICS
Information
Patent Application
METHOD FOR MANUFACTURING AN ELECTROCHROMIC DISPLAY DEVICE AND AN EL...
Publication number
20130258439
Publication date
Oct 3, 2013
RICOH COMPANY, LTD.
Yoshihisa Naijo
G02 - OPTICS
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
Information
Patent Application
ION CONDUCTOR AND ELECTROCHROMIC DISPLAY DEVICE
Publication number
20120154892
Publication date
Jun 21, 2012
RICOH COMPANY, LTD.
Tohru YASHIRO
G02 - OPTICS
Information
Patent Application
ELECTROCHROMIC DISPLAY DEVICE
Publication number
20120139825
Publication date
Jun 7, 2012
RICOH COMPANY, LTD.
Tohru YASHIRO
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
ELECTROCHROMIC DISPLAY DEVICE, FABRICATION METHOD THEREFOR, AND DRI...
Publication number
20120033286
Publication date
Feb 9, 2012
RICOH COMPANY, LTD.
Tohru YASHIRO
G02 - OPTICS
Information
Patent Application
ELECTROCHROMIC DISPLAY ELEMENT
Publication number
20110279884
Publication date
Nov 17, 2011
RICOH COMPANY, LTD.
Koh FUJIMURA
G02 - OPTICS
Information
Patent Application
ELECTROCHROMIC DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME
Publication number
20110222139
Publication date
Sep 15, 2011
RICOH COMPANY, LTD.,
Yoshihisa NAIJO
G02 - OPTICS
Information
Patent Application
LAYERED STRUCTURE AND ELECTRON DEVICE THAT USES SUCH A LAYERED STRU...
Publication number
20100078642
Publication date
Apr 1, 2010
Takanori Tano
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Liquid Crystal Element, Optical Path Deflecting Element, and Image...
Publication number
20080204608
Publication date
Aug 28, 2008
Yohei Takano
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ELECTRIC FIELD GENERATING DEVICE, LIGHT DEFLECTING DEVICE, AND IMAG...
Publication number
20070216316
Publication date
Sep 20, 2007
Yukiko HIRANO
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Optical axis deflecting method, optical axis deflecting element, op...
Publication number
20060250543
Publication date
Nov 9, 2006
Hiroyuki Sugimoto
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Electron device, operational device and display device
Publication number
20060124925
Publication date
Jun 15, 2006
Hiroshi Kondo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...