Invention Grant
- Patent Title: Internal combustion engine component and method of manufacturing internal combustion engine component
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Application No.: US16668594Application Date: 2019-10-30
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Publication No.: US11476643B2Publication Date: 2022-10-18
- Inventor: Naoki Sadaka
- Applicant: NGK SPARK PLUG CO., LTD.
- Applicant Address: JP Nagoya
- Assignee: NGK SPARK PLUG CO., LTD.
- Current Assignee: NGK SPARK PLUG CO., LTD.
- Current Assignee Address: JP Nagoya
- Agency: Kusner & Jaffe
- Priority: JPJP2018-210931 20181108,JPJP2019-131353 20190716
- Main IPC: H01T13/00
- IPC: H01T13/00 ; H01T13/02 ; C23C26/00 ; H01T13/32 ; B23K26/359 ; H01T21/02 ; H01T13/38 ; H01T13/39
Abstract:
A spark plug that prevents a decrease in strength of a member to which a mark is attached while ensuring a readability of the mark, and a method of manufacturing the spark plug. The spark plug is configured to ignite an air-fuel mixture in an internal combustion engine. The spark plug includes: a mark formed of an oxide film generated on a surface of a metallic member or is formed of the metallic member and the oxide film; and a coating material covering the whole mark and allowing transmission of light.
Public/Granted literature
- US20200153207A1 INTERNAL COMBUSTION ENGINE COMPONENT AND METHOD OF MANUFACTURING INTERNAL COMBUSTION ENGINE COMPONENT Public/Granted day:2020-05-14
Information query
