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Obu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Spark plug
Patent number
10,879,675
Issue date
Dec 29, 2020
NGK Spark Plug Co., Ltd.
Haruki Yoshida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug
Patent number
10,586,627
Issue date
Mar 10, 2020
NGK Spark Plug Co., Ltd.
Haruki Yoshida
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Spark plug
Patent number
10,424,901
Issue date
Sep 24, 2019
NGK Spark Plug Co., Ltd.
Jumpei Isasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug
Patent number
9,653,888
Issue date
May 16, 2017
NGK Spark Plug Co., Ltd.
Yutaka Yokoyama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SPARK PLUG
Publication number
20190131776
Publication date
May 2, 2019
NGK Spark Plug Co., Ltd.
Jumpei ISASA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SPARK PLUG
Publication number
20180374601
Publication date
Dec 27, 2018
NGK SPARK PLUG CO., LTD.
Haruki YOSHIDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SPARK PLUG
Publication number
20170353013
Publication date
Dec 7, 2017
NGK SPARK PLUG CO., LTD.
Haruki YOSHIDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SPARK PLUG
Publication number
20170093134
Publication date
Mar 30, 2017
NGK SPARK PLUG CO., LTD.
Yutaka YOKOYAMA
H01 - BASIC ELECTRIC ELEMENTS