Kazumasa Yoshida

Person

Nagoya-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Spark plug for internal combustion engine and method for manufactur...
- Patent number 8,120,235
- Issue date Feb 21, 2012
- NGK Spark Plug Co., Ltd.
- Kenji Nunome
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for use in an internal-combustion engine with a bilayer...
- Patent number 8,072,125
- Issue date Dec 6, 2011
- NGK Spark Plug Co., Ltd.
- Kazuyoshi Torii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal combustion engine
- Patent number 7,839,064
- Issue date Nov 23, 2010
- NGK Spark Plug Co., Ltd.
- Kazumasa Yoshida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug having specific configuration of center electrode with r...
- Patent number 7,821,186
- Issue date Oct 26, 2010
- NGK Spark Plug Co., Ltd.
- Hiroyuki Kameda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug including ground electrode with arcuately curved face
- Patent number 7,714,489
- Issue date May 11, 2010
- NGK Spark Plug Co., Ltd.
- Kazuyoshi Torii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ignition system
- Patent number 6,617,706
- Issue date Sep 9, 2003
- NGK Spark Plug Co., Ltd.
- Yoshihiro Matsubara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ignition device for internal combustion engines
- Patent number 6,244,247
- Issue date Jun 12, 2001
- NGK Spark Plug Co., Ltd.
- Yoshihiro Matsubara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Spark plug for internal combustion engine
- Patent number 6,225,752
- Issue date May 1, 2001
- NGK Spark Plug Co., Ltd.
- Yoshihiro Matsubara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Semi-creeping discharge type spark plug
- Patent number 6,208,066
- Issue date Mar 27, 2001
- NGK Spark Plug Co., Ltd.
- Akio Kokubu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Spark plug and an internal combustion engine igniting system using...
- Patent number 6,095,124
- Issue date Aug 1, 2000
- NGK Spark Plug Co., Ltd.
- Yoshihiro Matsubara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lateral electrode type spark plug with geometrical relationships wi...
- Patent number 6,091,185
- Issue date Jul 18, 2000
- NGK Spark Plug Co., Ltd.
- Yoshihiro Matsubara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug with center electrode having variable diameter portion r...
- Patent number 5,929,556
- Issue date Jul 27, 1999
- NGK Spark Plug Co., Ltd.
- Yoshihiro Matsubara
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTUR...
- Publication number 20100264803
- Publication date Oct 21, 2010
- NGK Spark Plug Co., Ltd.
- Kenji Nunome
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SPARK PLUG
- Publication number 20090160305
- Publication date Jun 25, 2009
- Hiroyuki KAMEDA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Spark plug for internal combustion engine
- Publication number 20070216277
- Publication date Sep 20, 2007
- NGK SPARK PLUG CO., LTD.
- Kazumasa Yoshida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SPARK PLUG FOR USE IN AN INTERNAL-COMBUSTION ENGINE
- Publication number 20070216275
- Publication date Sep 20, 2007
- NGK SPARK PLUG CO., LTD.
- Kazuyoshi Torii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Spark plug and method for producing spark plug
- Publication number 20070080618
- Publication date Apr 12, 2007
- NGK SPARK PLUG CO., LTD.
- Kazuyoshi Torii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IGNITION SYSTEM
- Publication number 20020167225
- Publication date Nov 14, 2002
- YOSHIHIRO MATSUBARA
- H01 - BASIC ELECTRIC ELEMENTS

Kazumasa Yoshida

Person

Patents Grantslast 30 patents

Spark plug for internal combustion engine and method for manufactur...

Spark plug for use in an internal-combustion engine with a bilayer...

Spark plug for internal combustion engine

Spark plug having specific configuration of center electrode with r...

Spark plug including ground electrode with arcuately curved face

Ignition system

Ignition device for internal combustion engines

Spark plug for internal combustion engine

Semi-creeping discharge type spark plug

Spark plug and an internal combustion engine igniting system using...

Lateral electrode type spark plug with geometrical relationships wi...

Spark plug with center electrode having variable diameter portion r...

Patents Applicationslast 30 patents

SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTUR...

SPARK PLUG

Spark plug for internal combustion engine

SPARK PLUG FOR USE IN AN INTERNAL-COMBUSTION ENGINE

Spark plug and method for producing spark plug

IGNITION SYSTEM