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. 02, 2021
Filed:
Mar. 28, 2017
Seiko Epson Corporation, Tokyo, JP;
Hidefumi Nakamura, Hachinohe, JP;
Taku Kawasaki, Hachinohe, JP;
Abstract
A titanium sintered body is composed of a material containing titanium, and has an oxygen content of 2500 ppm by mass or more and 5500 ppm by mass or less and a surface Vickers hardness of 250 or more and 500 or less. It is preferred that an α-phase and a β-phase are contained as crystal structures, and an area ratio occupied by the α-phase in a cross section is 70% or more and 99.8% or less. It is also preferred that in an X-ray diffraction spectrum obtained by X-ray diffractometry, the value of a peak reflection intensity by the plane orientation (110) of the β-phase is 5% or more and 60% or less of the value of a peak reflection intensity by the plane orientation (100) of the α-phase. It is also preferred that particles composed mainly of titanium oxide are included.