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Hiroyuki Tanabe
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Nagoya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Spark plug used for an internal-combustion engine and a method for...
Patent number
8,148,883
Issue date
Apr 3, 2012
NGK Spark Plug Co., Ltd.
Toshitaka Honda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Test method and apparatus for spark plug ceramic insulator
Patent number
8,013,617
Issue date
Sep 6, 2011
NGK Spark Plug Co., Ltd.
Toshitaka Honda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug
Patent number
7,388,323
Issue date
Jun 17, 2008
NGK Spark Plug Co., Ltd.
Tsutomu Shibata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug and method of making the same
Patent number
6,366,008
Issue date
Apr 2, 2002
NGK Spark Plug Co., Ltd.
Osamu Fukushima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug, insulator for spark plug and process for fabricating th...
Patent number
6,265,816
Issue date
Jul 24, 2001
NGK Spark Plug Co., Ltd.
Hirohito Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sintered ceramic body for a spark plug
Patent number
5,760,532
Issue date
Jun 2, 1998
NGK Spark Plug Co., Ltd.
Sugimoto Makoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sintered ceramic body for a spark plug insulator and method of sint...
Patent number
5,702,998
Issue date
Dec 30, 1997
NGK Spark Plug Co., Ltd.
Makoto Sugimoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of making a spark plug insulator
Patent number
5,565,157
Issue date
Oct 15, 1996
NGK Spark Plug Co., Ltd.
Makoto Sugimoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug insulator for use in internal combustion engine
Patent number
5,508,582
Issue date
Apr 16, 1996
NGK Spark Plug Co., Ltd.
Makoto Sugimoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug resistant to accidental discharges
Patent number
5,477,104
Issue date
Dec 19, 1995
NGK Spark Plug Co., Ltd.
Hiroyuki Tanabe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sintered ceramic body for a spark plug insulator and method of sint...
Patent number
5,370,832
Issue date
Dec 6, 1994
NGK Spark Plug Co., Ltd.
Makoto Sugimoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Spark plug insulator and a method of sintering
Patent number
5,283,134
Issue date
Feb 1, 1994
NGK Spark Plug Co., Ltd.
Makoto Sugimoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sintered ceramic body, a method of making same and spark plug insul...
Patent number
5,198,394
Issue date
Mar 30, 1993
NGK Spark Plug Co., Ltd.
Makoto Sugimoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
TEST METHOD AND APPARATUS FOR SPARK PLUG CERAMIC INSULATOR
Publication number
20090224767
Publication date
Sep 10, 2009
NGK SPARK PLUG CO., LTD.
Toshitaka HONDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SPARK PLUG USED FOR AN INTERNAL-COMBUSTION ENGINE AND A METHOD FOR...
Publication number
20070228915
Publication date
Oct 4, 2007
NGK SPARK PLUG CO., LTD.
Toshitaka Honda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Spark plug
Publication number
20060076865
Publication date
Apr 13, 2006
NGK SPARK PLUG CO., LTD.
Tsutomu Shibata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SPARK PLUG AND METHOD OF MAKING THE SAME
Publication number
20020041135
Publication date
Apr 11, 2002
Osamu Fukushima
H01 - BASIC ELECTRIC ELEMENTS