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Michio Asai
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Nagoya-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing a high pressure discharge lamp vessel
Patent number
7,041,240
Issue date
May 9, 2006
NGK Insulators, Ltd.
Sugio Miyazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High pressure discharge vessel for an alumina high-intensity discha...
Patent number
6,969,951
Issue date
Nov 29, 2005
NGK Insulators, Ltd.
Sugio Miyazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting element with mutually confronting electrodes
Patent number
6,646,374
Issue date
Nov 11, 2003
NGK Insulators, Ltd.
Norikazu Niimi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Corrosion-resistant alumina member and arc tube for high-intensity...
Patent number
6,642,656
Issue date
Nov 4, 2003
NGK Insulators, Ltd.
Mitsuru Kurashina
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting container for high-pressure discharge lamp and manuf...
Patent number
6,586,881
Issue date
Jul 1, 2003
NGK Insulators, Ltd.
Sugio Miyazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High pressure discharge lamp having stopper arranged between tubula...
Patent number
6,392,345
Issue date
May 21, 2002
NGK Insulators, Ltd.
Norikazu Niimi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Display and method for producing the same
Patent number
6,310,441
Issue date
Oct 30, 2001
NGK Insulators, Ltd.
Norikazu Niimi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of forming lead-in seal in high pressure discharge lamps
Patent number
6,224,449
Issue date
May 1, 2001
NGK Insulators, Ltd.
Norikazu Niimi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High pressure discharge lamps with metallizing layer
Patent number
6,057,644
Issue date
May 2, 2000
NGK Insulators, Ltd.
Norikazu Niimi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Production of ceramic tubes for metal halide lamps
Patent number
6,027,389
Issue date
Feb 22, 2000
NGK Insulators, Ltd.
Sugio Miyazawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of manufacturing a passage tube for passing plasma producing...
Patent number
5,961,916
Issue date
Oct 5, 1999
NGK Insulators, Ltd.
Toshio Ohashi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Gas tube for passing plasma generating gases
Patent number
5,814,818
Issue date
Sep 29, 1998
NGK Insulators, Ltd.
Toshio Ohashi
G01 - MEASURING TESTING
Information
Patent Grant
Ceramic multi-layer wiring substrate and process for preparation th...
Patent number
5,084,323
Issue date
Jan 28, 1992
Nippondenso Co., Ltd.
Takahashi Nagasaka
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Vessel for a high pressure discharge lamp and method of manufacturi...
Publication number
20030096551
Publication date
May 22, 2003
NGK Insulators, Ltd.
Sugio Miyazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Corrosion-resistant alumina member and arc tube for high-intensity...
Publication number
20020017867
Publication date
Feb 14, 2002
NGK Insulators, Ltd.
Mitsuru Kurashina
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES