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Ikue Kawashima
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Miyagi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Display apparatus and display method
Patent number
11,143,870
Issue date
Oct 12, 2021
Ricoh Company, Ltd.
Norikazu Igarashi
G02 - OPTICS
Information
Patent Grant
Monocular image display device
Patent number
10,942,354
Issue date
Mar 9, 2021
Ricoh Company, Ltd.
Yasuo Katano
G02 - OPTICS
Information
Patent Grant
Apparatus, system, and method of information sharing, and recording...
Patent number
10,670,421
Issue date
Jun 2, 2020
Ricoh Company, Ltd.
Yuuto Gotoh
G01 - MEASURING TESTING
Information
Patent Grant
Head-mounted display apparatus, and display method
Patent number
10,339,896
Issue date
Jul 2, 2019
Ricoh Company, Ltd.
Yuuma Usui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electrophoretic liquid and display device using electrophoretic liquid
Patent number
8,441,713
Issue date
May 14, 2013
Ricoh Company, Ltd.
Ikue Kawashima
G02 - OPTICS
Information
Patent Grant
Image display device and method for controlling the same
Patent number
8,378,785
Issue date
Feb 19, 2013
Ricoh Company, Ltd.
Ikue Kawashima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Organic transistor and active matrix display
Patent number
7,999,253
Issue date
Aug 16, 2011
Ricoh Company, Ltd.
Takumi Yamaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wiring pattern, electronic device, organic semiconductor device, la...
Patent number
7,816,672
Issue date
Oct 19, 2010
Ricoh Company, Ltd.
Hidenori Tomono
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Organic transistor, organic transistor array, and display apparatus
Patent number
7,768,001
Issue date
Aug 3, 2010
Ricoh Company, Ltd.
Takumi Yamaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multilayer wiring structure and method of manufacturing the same
Patent number
7,765,686
Issue date
Aug 3, 2010
Ricoh Company, Ltd.
Akishige Murakami
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Multicolor display element
Patent number
7,663,797
Issue date
Feb 16, 2010
Ricoh Company, Ltd.
Shigenobu Hirano
G02 - OPTICS
Information
Patent Grant
Display device and display apparatus
Patent number
7,525,716
Issue date
Apr 28, 2009
Ricoh Company, Ltd.
Shigenobu Hirano
G02 - OPTICS
Information
Patent Grant
Image display medium, process for forming image, and multicolor ima...
Patent number
7,474,322
Issue date
Jan 6, 2009
Ricoh Company, Ltd.
Hiroyuki Takahashi
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Multicolor display element
Patent number
7,333,259
Issue date
Feb 19, 2008
Ricoh Company, Ltd.
Shigenobu Hirano
G02 - OPTICS
Information
Patent Grant
Image display medium, process for forming image, and multicolor ima...
Patent number
7,029,833
Issue date
Apr 18, 2006
Ricoh Company, Ltd.
Hiroyuki Takahashi
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Optical path element, optical switching element, spatial light modu...
Patent number
6,707,514
Issue date
Mar 16, 2004
Ricoh Company, Ltd.
Hitoshi Kondoh
G02 - OPTICS
Information
Patent Grant
Image magnifying/reducing optical device and manufacturing method t...
Patent number
6,480,345
Issue date
Nov 12, 2002
Ricoh Company, Ltd.
Ikue Kawashima
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Semiconductor device having opposite-polarity region under channel
Patent number
6,163,053
Issue date
Dec 19, 2000
Ricoh Company, Ltd.
Ikue Kawashima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method of forming semiconductor device hav...
Patent number
6,150,698
Issue date
Nov 21, 2000
Ricoh Company, Ltd.
Masaya Ohtsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light polarizer and method of producing the light polarizer
Patent number
5,991,075
Issue date
Nov 23, 1999
Ricoh Company, Ltd.
Tadao Katsuragawa
G02 - OPTICS
Information
Patent Grant
Fabrication process of a semiconductor device having an interconnec...
Patent number
5,976,971
Issue date
Nov 2, 1999
Ricoh Company, Ltd.
Shigeru Kinpara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for improving wiring contact in semiconductor devices
Patent number
5,937,327
Issue date
Aug 10, 1999
Ricoh Company, Ltd.
Ikue Kawashima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device and a method of manufacturi...
Patent number
5,589,712
Issue date
Dec 31, 1996
Ricoh Company, Ltd.
Ikue Kawashima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Micro metal-wiring structure having stress induced migration resist...
Patent number
5,448,113
Issue date
Sep 5, 1995
Ricoh Company, Ltd.
Kouei Suzuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting element, image sensor and light receiving element wi...
Patent number
5,124,543
Issue date
Jun 23, 1992
Ricoh Company, Ltd.
Ikue Kawashima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
4,966,821
Issue date
Oct 30, 1990
Ricoh Company, Ltd.
Ikue Kawashima
G11 - INFORMATION STORAGE
Information
Patent Grant
Vascular anastomosis apparatus
Patent number
4,566,453
Issue date
Jan 28, 1986
Tohoku Ricoh Co., Ltd.
Masafumi Kumano
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Focusing-position-detection circuit
Patent number
4,432,622
Issue date
Feb 21, 1984
Ricoh Company, Ltd.
Ikue Kawashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
HEAD-MOUNTED DISPLAY APPARATUS, AND DISPLAY METHOD
Publication number
20170345391
Publication date
Nov 30, 2017
RICOH COMPANY, LTD.
Yuuma USUI
G02 - OPTICS
Information
Patent Application
APPARATUS, SYSTEM, AND METHOD OF INFORMATION SHARING, AND RECORDING...
Publication number
20170328733
Publication date
Nov 16, 2017
Yuuto GOTOH
G02 - OPTICS
Information
Patent Application
INFORMATION TERMINAL DEVICE, METHOD TO PROTECT HANDWRITTEN INFORMAT...
Publication number
20140009420
Publication date
Jan 9, 2014
Mayuka ARAUMI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ELECTRONIC INFORMATION TERMINAL AND ELECTRONIC INFORMATION SYSTEM
Publication number
20130305249
Publication date
Nov 14, 2013
Ikue Kawashima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ELECTRONIC INFORMATION TERMINAL AND ELECTRONIC INFORMATION SYSTEM
Publication number
20130254354
Publication date
Sep 26, 2013
Ikue Kawashima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ELECTROPHORETIC LIQUID AND DISPLAY DEVICE USING ELECTROPHORETIC LIQUID
Publication number
20110134508
Publication date
Jun 9, 2011
Ikue Kawashima
G02 - OPTICS
Information
Patent Application
IMAGE DISPLAY DEVICE AND METHOD FOR CONTROLLING THE SAME
Publication number
20090278657
Publication date
Nov 12, 2009
Ikue Kawashima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ORGANIC TRANSISTOR AND ACTIVE MATRIX DISPLAY
Publication number
20090272966
Publication date
Nov 5, 2009
Takumi Yamaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSISTOR ELEMENT, DISPLAY DEVICE AND THESE MANUFACTURING METHODS
Publication number
20090189148
Publication date
Jul 30, 2009
Mayuka Araumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC THIN FILM TRANSISTOR AND ACTIVE MATRIX DISPLAY
Publication number
20090050879
Publication date
Feb 26, 2009
Takumi Yamaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MULTILAYER WIRING STRUCTURE AND METHOD OF MANUFACTURING THE SAME
Publication number
20090025215
Publication date
Jan 29, 2009
Akishige Murakami
G02 - OPTICS
Information
Patent Application
ORGANIC TRANSISTOR, ORGANIC TRANSISTOR ARRAY, AND DISPLAY APPARATUS
Publication number
20090014715
Publication date
Jan 15, 2009
Takumi YAMAGA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WIRING PATTERN, ELECTRONIC DEVICE, ORGANIC SEMICONDUCTOR DEVICE, LA...
Publication number
20080061288
Publication date
Mar 13, 2008
Hidenori TOMONO
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MULTICOLOR DISPLAY ELEMENT
Publication number
20080013152
Publication date
Jan 17, 2008
Shigenobu Hirano
G02 - OPTICS
Information
Patent Application
Organic transistor and display device
Publication number
20070096088
Publication date
May 3, 2007
Takanori Tano
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Multicolor display element
Publication number
20070024948
Publication date
Feb 1, 2007
Shigenobu Hirano
G02 - OPTICS
Information
Patent Application
Display device and display apparatus
Publication number
20060204866
Publication date
Sep 14, 2006
Shigenobu Hirano
G02 - OPTICS
Information
Patent Application
Image display medium, process for forming image, and multicolor ima...
Publication number
20060125911
Publication date
Jun 15, 2006
Hiroyuki Takahashi
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Optical memory device and process for operating the same
Publication number
20040063006
Publication date
Apr 1, 2004
Hiroyuki Takahashi
G11 - INFORMATION STORAGE
Information
Patent Application
Image display medium, process for forming image, and multicolor ima...
Publication number
20030184644
Publication date
Oct 2, 2003
Hiroyuki Takahashi
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Optical path element, optical switching element, spatial light modu...
Publication number
20030016905
Publication date
Jan 23, 2003
Hitoshi Kondoh
G02 - OPTICS
Information
Patent Application
Image magnifying/reducing optical device and manufacturing method t...
Publication number
20020021501
Publication date
Feb 21, 2002
Ricoh Company, Ltd.
Ikue Kawashima
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL