发明授权
- 专利标题: Spark plug having a precious metal tip
- 专利标题(中): 火花塞具有贵金属尖端
-
申请号: US10514786申请日: 2004-03-22
-
公开(公告)号: US07382084B2公开(公告)日: 2008-06-03
- 发明人: Osamu Yoshimoto , Wataru Matsutani , Yoshihiro Matsubara , Kenji Nunome
- 申请人: Osamu Yoshimoto , Wataru Matsutani , Yoshihiro Matsubara , Kenji Nunome
- 申请人地址: JP Nagoya
- 专利权人: NGK Spark Pulg Co., Ltd.
- 当前专利权人: NGK Spark Pulg Co., Ltd.
- 当前专利权人地址: JP Nagoya
- 代理机构: Morgan, Lewis & Bockius LLP
- 优先权: JP2003-082491 20030325; JP2003-151102 20030528
- 国际申请: PCT/JP2004/003831 WO 20040322
- 国际公布: WO2004/105204 WO 20041202
- 主分类号: H01T13/20
- IPC分类号: H01T13/20
摘要:
An object of the invention is to provide a spark plug having a discharge portion made of a precious metal tip, in which peeling of the precious metal tip from a surface of the discharge portion can be suppressed while spark abrasion, oxidation abrasion and abnormal abrasion of the discharge portion can be suppressed.
公开/授权文献
- US20060061250A1 Spark plug 公开/授权日:2006-03-23
信息查询