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. 14, 1995
Filed:
Sep. 09, 1993
Akio Mishima, Hiroshima, JP;
Tosiharu Harada, Hiroshima, JP;
Mamoru Tanihara, Osaka, JP;
Yasutaka Ota, Hatsukaichi, JP;
Kenji Okinaka, Hiroshima, JP;
Kohji Mori, Hiroshima, JP;
Hirofumi Kawasaki, Aki, JP;
Norimichi Nagai, Hiroshima, JP;
Katsunori Fujimoto, Ube, JP;
Yoshiro Okuda, Hiroshima, JP;
Toda Kogyo Corp., Hiroshima, JP;
Abstract
Disclosed herein are spindle-shaped magnetic iron based alloy particles containing at least one selected from the group consisting of Ni, Al, Si, P, Co, Mg, B and Zn, which have a particle length of 0.05 to 0.40 .mu.m, a crystallite size of 110 to 180 .ANG., a specific surface area of 30 to 60 m.sup.2 /g, a coercive force of 1,300 to 1,700 Oe and a saturation magnetization (.sigma.s) of not less than 100 emu/g and a process for producing the same.