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Hirofumi Suzuki
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Kuwana-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Alumina sintered body and spark plug using the same
Patent number
9,583,916
Issue date
Feb 28, 2017
Denso Corporation
Shota Imada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Alumina sintered body and method for manufacturing same, and spark...
Patent number
8,431,505
Issue date
Apr 30, 2013
Nippon Soken, Inc.
Itsuhei Ogata
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Spark plug
Patent number
7,109,645
Issue date
Sep 19, 2006
Denso Corporation
Hirofumi Suzuki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ignition device for internal combustion engine
Patent number
7,080,638
Issue date
Jul 25, 2006
Denso Corporation
Atsuya Mizutani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug with powder filling
Patent number
6,975,062
Issue date
Dec 13, 2005
Denso Corporation
Hirofumi Suzuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition device for internal combustion engine and a manufacturing...
Patent number
6,873,094
Issue date
Mar 29, 2005
Denso Corporation
Hiromi Hiramatsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lead-free glaze and spark plug
Patent number
6,492,289
Issue date
Dec 10, 2002
Denso Corporation
Hirofumi Suzuki
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
Information
Patent Application
ALUMINA SINTERED BODY AND SPARK PLUG USING THE SAME
Publication number
20160254651
Publication date
Sep 1, 2016
DENSO CORPORATION
Shota IMADA
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
ALUMINA SINTERED BODY
Publication number
20110251042
Publication date
Oct 13, 2011
NIPPON SOKEN, INC.
Hiroshi Araki
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
ALUMINA SINTERED BODY AND METHOD FOR MANUFACTURING SAME, AND SPARK...
Publication number
20100229813
Publication date
Sep 16, 2010
NIPPON SOKEN, INC.
Itsuhei Ogata
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Alumina compound sintered compact, spark plug using the same and me...
Publication number
20080124266
Publication date
May 29, 2008
DENSO CORPORATION
Itsuhei Ogata
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Alumina composite sintered body, evaluation method thereof and spar...
Publication number
20070298245
Publication date
Dec 27, 2007
DENSO CORPORATION
Itsuhei Ogata
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Alumina-based ceramic composition and spark plug using the same
Publication number
20060186780
Publication date
Aug 24, 2006
NIPPON SOKEN, INC.
Itsuhei Ogata
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Spark plug
Publication number
20050127808
Publication date
Jun 16, 2005
DENSO CORPORATION
Hirofumi Suzuki
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Ignition device for internal combustion engine
Publication number
20050045167
Publication date
Mar 3, 2005
Denso Corporation
Atsuya Mizutani
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Spark plug
Publication number
20040222728
Publication date
Nov 11, 2004
Hirofumi Suzuki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Spark plug with elastically and plastically improved gasket
Publication number
20040066124
Publication date
Apr 8, 2004
DENSO CORPORATION
Keiji Kanao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ignition device for internal combustion engine and a manufacturing...
Publication number
20030184202
Publication date
Oct 2, 2003
Hiromi Hiramatsu
H01 - BASIC ELECTRIC ELEMENTS