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:
Oct. 09, 2007
Filed:
Aug. 22, 2005
Munekatsu Shimada, Hachioji, JP;
Takae Ono, Legal Representative, Yokohama, JP;
Tetsurou Tayu, Yokosuka, JP;
Makoto Kano, Yokohama, JP;
Hiroshi Yamamoto, Tokyo, JP;
Munekatsu Shimada, Hachioji, JP;
Takae Ono, legal representative, Yokohama, JP;
Tetsurou Tayu, Yokosuka, JP;
Makoto Kano, Yokohama, JP;
Hiroshi Yamamoto, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Horoshi Yamamoto, Tokyo, JP;
Abstract
The present invention provides a rare earth magnet superior in magnetic properties and thermal stability. In an aspect of the present invention, a production method of an alloy thin ribbon for a rare earth magnet includes a step to obtain a quenched thin ribbon by feeding a molten alloy containing praseodymium (Pr), iron (Fe), cobalt (Co), titanium (Ti), boron (B), and silicon (Si) on a rotating roll and a step to apply heat treatment to the quenched thin ribbon at a heating rate within a range of 100° to 150° C./min to crystallize the quenched thin ribbon.