The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2005
Filed:
Feb. 23, 2001
Michio Kaneko, Futtsu, JP;
Teruhiko Hayashi, Hikari, JP;
Kazuhiro Takahashi, Hikari, JP;
Kiyonori Tokuno, Tokyo, JP;
Junichi Tamenari, Hikari, JP;
Kinichi Kimura, Tokyo, JP;
Hiroshi Shimizu, Tokyo, JP;
Shoichi Maruyama, Tokyo, JP;
Michio Kaneko, Futtsu, JP;
Teruhiko Hayashi, Hikari, JP;
Kazuhiro Takahashi, Hikari, JP;
Kiyonori Tokuno, Tokyo, JP;
Junichi Tamenari, Hikari, JP;
Kinichi Kimura, Tokyo, JP;
Hiroshi Shimizu, Tokyo, JP;
Shoichi Maruyama, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
Titanium resistant to discoloration in an atmospheric environment characterized by having an average carbon concentration of 14 at % or less in a range to a depth of 100 nm from the surface and having an oxide film of a thickness of 12 to 40 nm at its surface. Titanium resistant to discoloration in an atmospheric environment characterized in that, in X-ray diffraction of its surface, a ratio (X/X) of a (200) peak intensity Xof TiC to a (110) peak intensity Xof titanium is not more than 0.18 and by having an oxide film of a thickness of 12 to 40 nm at its surface.