Invention Grant
- Patent Title: Spark plug
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Application No.: US14650075Application Date: 2013-12-13
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Publication No.: US09935430B2Publication Date: 2018-04-03
- Inventor: Go Matsumura , Kazuyoshi Torii , Yasuhide Shimanokami
- Applicant: NGK SPARK PLUG CO., LTD.
- Applicant Address: JP Nagoya-shi, Aichi
- Assignee: NGK SPARK PLUG CO., LTD.
- Current Assignee: NGK SPARK PLUG CO., LTD.
- Current Assignee Address: JP Nagoya-shi, Aichi
- Agency: Kusner & Jaffe
- Priority: JP2012-275110 20121217
- International Application: PCT/JP2013/083450 WO 20131213
- International Announcement: WO2014/097983 WO 20140626
- Main IPC: H01T13/39
- IPC: H01T13/39 ; H01T13/20 ; H01T13/36
Abstract:
A spark plug having a of center electrode, a ground electrode, and a noble metal tip that is laser-welded to at least one of the center electrode and the ground electrode The noble metal tip is joined to the electrode through a fused portion formed by laser welding, and the fused portion includes a first fused portion and a second fused portion.
Public/Granted literature
- US20150372458A1 SPARK PLUG Public/Granted day:2015-12-24
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