| 发明名称 | Iron golf club head and iron golf club | ||
| 摘要 | In an iron golf club head with a face portion and a neck portion integrally molded by forging, the iron golf club head is made of an iron steel material at least containing 0.30% by weight or less of carbon and 0.0005% by weight to 0.003% by weight of boron. The face portion has been subjected to quenching processing. | ||
| 申请公布号 | US9522311(B2) | 申请公布日期 | 2016.12.20 |
| 申请号 | US201414479698 | 申请日期 | 2014.09.08 |
| 申请人 | MIZUNO CORPORATION;CHUO INDUSTRIES, LTD. | 发明人 | Doi Kazuhiro;Yoshikawa Jun |
| 分类号 | A63B53/04;C21D8/00;C22C38/00;A63B53/06;C21D9/00;C21D1/18 | 主分类号 | A63B53/04 |
| 代理机构 | Troutman Sanders LLP | 代理人 | Troutman Sanders LLP ;Schutz James E.;Sharpe Daniel T. |
| 主权项 | 1. An iron golf club head comprising: a face portion and a neck portion integrally molded from a single material by forging, the single material being an iron steel material containing: less than or equal to 0.30% carbon by weight,0.0005 to 0.003% boron by weight,0.30 to 1.20% manganese by weight, and0.01% to 0.05% titanium by weight said face portion having been subjected to quenching processing. | ||
| 地址 | Osaka JP | ||