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:
May. 21, 2013
Filed:
May. 30, 2008
Shin-ichi Ohkoshi, Tokyo, JP;
Shunsuke Sakurai, Tokyo, JP;
Takenori Yorinaga, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Shinya Sasaki, Tokyo, JP;
Shin-ichi Ohkoshi, Tokyo, JP;
Shunsuke Sakurai, Tokyo, JP;
Takenori Yorinaga, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Shinya Sasaki, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Dowa Electronics Materials Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a magnetic material having high Hc and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ε-ABFeOor ε-ABCFeO(wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0<x, y, z<1), with ε-FeOas a main phase.