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. 05, 1985
Filed:
Nov. 09, 1983
Katsuhiro Takano, Gunma, JP;
Yoshishige Koma, Gunma, JP;
Masaru Hagiwara, Gunma, JP;
Shintaro Suzuki, Gunma, JP;
Kanto Denka Kogyo Co., Ltd., Tokyo, JP;
Abstract
Ferromagnetic Fe-Ni alloy powders having the combination of a coercive force of 550-900 Oe (oersted) and a saturation flux density of 90-170 emu/g are provided by applying a nickel compound in a liquid to a particulate, oxygen-containing iron compound having an average particle length of 0.5-5 .mu.m and an average particle width of 0.02-0.5 .mu.m, and then drying and reducing the treated material to produce a metallic powder. The ferromagnetic powders are suitable for production of magnetic recording media because of the balanced magnetic properties.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile