| 发明名称 |
SPARK PLUG AND PROCESS FOR PRODUCING THE SPARK PLUG |
| 摘要 |
A spark plug in which an ignition portion of a ground electrode formed through joining of a noble metal chip to the ground electrode has high durability, and a method of manufacturing the spark plug.
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| 申请公布号 |
US2010264802(A1) |
申请公布日期 |
2010.10.21 |
| 申请号 |
US20080735154 |
申请日期 |
2008.12.19 |
| 申请人 |
TANAKA TOMOO;MIYASHITA NAOMICHI |
发明人 |
TANAKA TOMOO;MIYASHITA NAOMICHI |
| 分类号 |
H01T13/20;H01T21/02 |
主分类号 |
H01T13/20 |
| 代理机构 |
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代理人 |
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| 主权项 |
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