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:
Jun. 03, 2014
Filed:
Oct. 02, 2009
Yasuhiko Fujii, Hiroshima-ken, JP;
Minoru Ohsugi, Hiroshima-ken, JP;
Yasushi Nishio, Hiroshima-ken, JP;
Yosuke Koyama, Hiroshima-ken, JP;
Shigeru Takaragi, Hiroshima-ken, JP;
Yasuhiko Fujii, Hiroshima-ken, JP;
Minoru Ohsugi, Hiroshima-ken, JP;
Yasushi Nishio, Hiroshima-ken, JP;
Yosuke Koyama, Hiroshima-ken, JP;
Shigeru Takaragi, Hiroshima-ken, JP;
Toda Kogyo Corporation, Otake-shi, Hiroshima-ken, JP;
Abstract
The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 μm and a particle diameter x90 of 4.3 to 5.4 μm wherein the x90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.