| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide sporting goods having reduced size and weight and hardly generating peeling and abrasion of a surface part. <P>SOLUTION: The sporting goods have a carbon-doped titanium oxide layer 2A on a surface of a body 1 made of a titanium-based material. The carbon-doped titanium oxide layer 2A contains the titanium bonded with the carbon and has a hardness higher than that of the titanium-based material, and the surface is polished to smooth its rugged face. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
