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:
Sep. 19, 2023
Filed:
Jun. 18, 2018
Nippon Steel Corporation, Tokyo, JP;
Michio Kaneko, Tokyo, JP;
Kiyonori Tokuno, Tokyo, JP;
Takao Wada, Tsubame, JP;
Mitsuyuki Hasegawa, Tsubame, JP;
Mitsuru Nakayama, Tsubame, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
The titanium material includes a titanium oxide layer formed on a surface of titanium being a base material, the titanium oxide layer having a thickness measured by a glow discharge spectrometry of 60 to 300 nm, wherein: the titanium oxide layer contains 0.5 to 7.0 at % of nitrogen, and an arithmetic mean roughness Ra of a surface thereof is 2.0 to 4.0 μm; and a power spectrum of a surface roughness of the titanium material has a peak of an amplitude height of 0.005 to 0.020 μm in a range of a wavelength of 1.1 to 2.5 μm and has a peak of an amplitude height of 0.0010 to 0.0030 μm in a range of a wavelength of 0.80 to 0.98 μm. An L*a*b* color space may be L*: 30 to 40, a*: 2.0 to 9.0, and b*: −7.0 to 18.0.