| 发明名称 |
A spark plug insulator and a method of making the same. |
| 摘要 |
A spark plug insulator has a sing a sintered body which has a nitride-based ceramic powder ranging from 60 wt% to 98 wt% and a sintering additive. On an entire surface of the sintered body, a pyrolytic boron nitride layer is uniformly deposited, a thickness of which ranges from 10 mu m to 100 mu m. <IMAGE> |
| 申请公布号 |
EP0544952(B1) |
申请公布日期 |
1995.08.09 |
| 申请号 |
EP19910311240 |
申请日期 |
1991.12.03 |
| 申请人 |
NGK SPARK PLUG CO., LTD |
发明人 |
SUGIMOTO, MAKOTO, C/O NGK SPARK PLUG COMP. LIMITED;TANABE, HIROYUKI, C/O NGK SPARK PLUG COMP. LIMITED;MUSASA, MAMORU, C/O NGK SPARK PLUG COMP. LIMITED |
| 分类号 |
C04B41/87;C04B35/58;C04B35/581;C04B35/584;H01T13/38 |
主分类号 |
C04B41/87 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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