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:
Aug. 18, 2009
Filed:
Aug. 04, 2004
Kazunori Igarashi, Niigata, JP;
Gakuji Uozumi, Naka, JP;
Yasushi Nayuki, Choshi, JP;
Ryoji Nakayama, Naka, JP;
Kazunori Igarashi, Niigata, JP;
Gakuji Uozumi, Naka, JP;
Yasushi Nayuki, Choshi, JP;
Ryoji Nakayama, Naka, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
JEMCO Inc., Akita-Ken, JP;
Abstract
The invention provides an Fe—Ni—Mo soft magnetic flaky powder having a component composition of, in percent by mass, Ni: 60 to 90%, Mo: 0.05 to 1.95%, and the balance of Fe and unavoidable impurities, and a flat surface of an average particle size of 30 to 150 μm, and an aspect ratio (average particle size /average thickness) of 5 to 500; and having a peak intensity ratio I/Iwithin a range between 0.43 and 10, where Iis the peak height of the face index (200) and Iis the peak height of the face index (111), in an X-ray diffraction pattern measured in such a manner that the plane including the X-ray incident direction and the diffraction direction is perpendicular to the flat surface of the soft magnetic flaky powder, and the angle between the incident direction and the flat surface is equal to the angle between the diffraction direction and the flat surface. Furthermore, the invention provides a soft magnetic flaky powder with oxide layer wherein an oxide layer of a thickness of 50 to 1000 Å is formed on the surface of this soft magnetic flaky powder.