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:
Feb. 20, 1990
Filed:
Sep. 06, 1988
Yukoh Takeuchi, Nagoya, JP;
Yoshihisa Kato, Tsushima, JP;
Hitoshi Hayakawa, Tohkai, JP;
Masaru Nagata, Nagoya, JP;
Shinji Nakayama, Nagoya, JP;
Daido Tokushuko Kabushiki Kaisha, Nagoya, JP;
Fuji Valve Co., Ltd., Tokyo, both, JP;
Abstract
A wear-resistant titanium or titanium-alloy member adapted for use as a poppet valve, rocker arm, etc., of an internal combustion engine, which requires lightness in weight and good wear resistance, and a method for manufacturing the member. The surface of the titanium or titanium-alloy member is given a Vickers hardness number of 390 to 1,200, preferably 400 to 800, and a hardened layer depth of 0.1 to 2.0 mm, preferably 0.3 to 1.5 mm, by being melt-hardened while being supplied with hardening elements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile