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:
Jul. 13, 2004
Filed:
Feb. 28, 2002
Kiyohito Ishida, Sendai-shi, Miyagi, JP;
Katsunari Oikawa, Shibata-gun, Miyagi, JP;
Toshimitsu Fujii, Nagoya, JP;
Yukinori Matsuda, Nagoya, JP;
Kozo Ozaki, Nagoya, JP;
Seiji Kurata, Nagoya, JP;
Takayuki Shimizu, Nagoya, JP;
Other;
Abstract
A free-cutting tool steel is provided containing Fe and C in an amount of 0.1 to 2.5 wt %, Ti and or Zr where W +0.52W constitutes 0.03 to 3.5 wt %, and W represents Ti content and W represents Zr content, at least any one of S, Se and Te where W +0.4W +0.25W constitutes 0.01 to 1.0 wt %, and (W +0.52W )/(W +0.4W +0.25W ) constitutes 1 to 4, and W represents S content, W represents Se content and W represents Te content; and dispersed therein a texture thereof from 0.1 to 10% in terms of area ratio in a section of a machinability improving compound phase of a metallic element component of Ti and/or Zr as major components, and a binding component for the metallic element component containing C and any one of S, Se and Te.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile