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. 26, 2008
Filed:
Jan. 30, 2004
Takako Takei, Tokyo, JP;
Takeshi Araki, Tokyo, JP;
Takanori Sone, Tokyo, JP;
Hiroyuki Teramoto, Tokyo, JP;
Takayuki Hanaki, Tokyo, JP;
Noriaki Matsunaga, Tokyo, JP;
Takako Takei, Tokyo, JP;
Takeshi Araki, Tokyo, JP;
Takanori Sone, Tokyo, JP;
Hiroyuki Teramoto, Tokyo, JP;
Takayuki Hanaki, Tokyo, JP;
Noriaki Matsunaga, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A plastic magnet precursor which can be supplied in molding a plastic magnet with a constant composition without requiring kneading in which a resin is melted and sheared. Through injection molding using the precursor, a plastic magnet having little deterioration of magnetic properties and a small variation in quality is obtained. The plastic magnet precursor according to the present invention includes an Nd—Fe—B isotropic magnet powder and a ferrite anisotropic magnet powder subjected to coating with a titanate coupling agent, and a thermoplastic resin powder adhered around the magnet powder.