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:
Nov. 04, 2003
Filed:
Jul. 16, 2001
Shinichi Hayashi, Shiroi-machi, JP;
Shoichi Yoshizawa, Inzai, JP;
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
A resin-bonded type magnet molded from a composition comprising a magnetic powder and a resin powder in which a resin binder comprises at least one unsaturated polyester resin cured product as the main ingredient. The resin binder contains a peroxide or a reaction product thereof capable of curing at a temperature of 150° C. or lower, and an anisotropic magnetic field of the magnetic powder is 50 kOe or more, and 50% by weight or more of the particles of magnetic powder has a grain size of 100 &mgr;m or less. The resin-bonded type magnet is obtained by molding by an injection molding process, an injection molding, a compression process, an injection compression molding process, an injection pressing molding process, or a transfer molding process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile