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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical substrate, light emitting element, display device and manuf...
Patent number
7,811,947
Issue date
Oct 12, 2010
NEC Corporation
Koji Shigemura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Active matrix organic EL display device and manufacturing method th...
Patent number
7,785,942
Issue date
Aug 31, 2010
NEC Corporation
Yuichi Iketsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Active matrix organic EL display device and manufacturing method th...
Patent number
7,417,251
Issue date
Aug 26, 2008
NEC Corporation
Yuichi Iketsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical substrate, light emitting element, display device and manuf...
Patent number
7,372,075
Issue date
May 13, 2008
NEC Corporation
Koji Shigemura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescence display device
Patent number
7,057,340
Issue date
Jun 6, 2006
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube device mounted with a cold cathode and a method of im...
Patent number
6,756,734
Issue date
Jun 29, 2004
NEC Microwave Tube, Ltd.
Shunji Tsuida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Active matrix organic EL display device and method of forming the same
Patent number
6,597,121
Issue date
Jul 22, 2003
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube device mounted with a cold cathode and a method of im...
Patent number
6,583,567
Issue date
Jun 24, 2003
NEC Microwave Tube, Ltd.
Shunji Tsuida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Cold cathode electron gun
Patent number
6,495,953
Issue date
Dec 17, 2002
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode
Patent number
6,414,421
Issue date
Jul 2, 2002
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron tube device mounted with a cold cathode and a method of im...
Patent number
6,310,438
Issue date
Oct 30, 2001
NEC Corporation
Shunji Tsuida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron gun for electron tube with cold cathode
Patent number
6,294,868
Issue date
Sep 25, 2001
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field-emission cold cathode having improved insulating characterist...
Patent number
6,075,315
Issue date
Jun 13, 2000
NEC Corporation
Nobuya Seko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode apparatus having a heater for heating e...
Patent number
5,994,833
Issue date
Nov 30, 1999
NEC Corporation
Nobuya Seko
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cathode with uniform emission
Patent number
5,905,330
Issue date
May 18, 1999
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cathode having focusing electrode
Patent number
5,723,867
Issue date
Mar 3, 1998
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cathode with resistive gate areas and electron gun u...
Patent number
5,717,279
Issue date
Feb 10, 1998
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode and method for manufacturing the same
Patent number
5,651,898
Issue date
Jul 29, 1997
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode element having exposed substrate
Patent number
5,650,688
Issue date
Jul 22, 1997
NEC Corporation
Hideo Makishima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode element having exposed substrate
Patent number
5,648,698
Issue date
Jul 15, 1997
NEC Corporation
Hideo Makishima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Cold cathode
Patent number
5,635,789
Issue date
Jun 3, 1997
NEC Corporation
Hideo Makishima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Field-emission cathode having integrated electrical interconnects a...
Patent number
5,585,689
Issue date
Dec 17, 1996
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode element with locally thickened gate ele...
Patent number
5,559,390
Issue date
Sep 24, 1996
NEC Corporation
Hideo Makishima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field emission cold cathode and method for manufacturing the same
Patent number
5,493,173
Issue date
Feb 20, 1996
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Heater coil for electron tube
Patent number
5,426,351
Issue date
Jun 20, 1995
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
ACTIVE MATRIX ORGANIC EL DISPLAY DEVICE AND MANUFACTURING METHOD TH...
Publication number
20090053862
Publication date
Feb 26, 2009
NEC Corporation
Yuichi Iketsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL SUBSTRATE, LIGHT EMITTING ELEMENT, DISPLAY DEVICE AND MANUF...
Publication number
20080220554
Publication date
Sep 11, 2008
NEC Corporation
Koji Shigemura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical substrate, light emitting element, display device and manuf...
Publication number
20060012901
Publication date
Jan 19, 2006
NEC Corporation
Koji Shigemura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Active matrix organic el display device and manufacturing method th...
Publication number
20050247939
Publication date
Nov 10, 2005
NEC Corporation
Yuichi Iketsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Organic electroluminescence display device
Publication number
20040227459
Publication date
Nov 18, 2004
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Active matrix organic el display device and method of forming the same
Publication number
20020050795
Publication date
May 2, 2002
NEC Corporation
Hironori Imura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Electron tube device mounted with a cold cathode and a method of im...
Publication number
20020036470
Publication date
Mar 28, 2002
NEC Corporation
Shunji Tsuida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Electron tube device mounted with a cold cathode and a method of im...
Publication number
20010024091
Publication date
Sep 27, 2001
Shunji Tsuida
H01 - BASIC ELECTRIC ELEMENTS