Kenka Tsubota

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Chiryu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spark plug for internal combustion engine and manufacturing method...
- Patent number 8,523,624
- Issue date Sep 3, 2013
- Denso Corporation
- Keiji Kanao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing spark plug for internal-combustion engine
- Patent number 8,398,447
- Issue date Mar 19, 2013
- Denso Corporation
- Ken Hanashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal-combustion engine and method for manufactur...
- Patent number 8,339,021
- Issue date Dec 25, 2012
- Denso Corporation
- Ken Hanashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal combustion engine
- Patent number 8,258,686
- Issue date Sep 4, 2012
- Denso Corporation
- Keiji Kanao
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD...
- Publication number 20120289115
- Publication date Nov 15, 2012
- DENSO CORPORATION
- Keiji KANAO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SPARK PLUG FOR INTERNAL-COMBUSTION ENGINE
- Publication number 20120190266
- Publication date Jul 26, 2012
- DENSO CORPORATION
- Ken Hanashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SPARK PLUG FOR INTERNAL-COMBUSTION ENGINE AND METHOD FOR MANUFACTUR...
- Publication number 20100289397
- Publication date Nov 18, 2010
- Denso Corporation
- Ken Hanashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Spark plug for internal combustion engine and manufacturing method...
- Publication number 20060163992
- Publication date Jul 27, 2006
- DENSON CORPORATION
- Keiji Kanao
- H01 - BASIC ELECTRIC ELEMENTS