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. 19, 2007
Filed:
Jul. 29, 2002
Eiji Sakaguchi, Kameoka, JP;
Hitoshi Morimoto, Hyogo, JP;
Eiji Sakaguchi, Kameoka, JP;
Hitoshi Morimoto, Hyogo, JP;
Neomax Co., Ltd., Osaka, JP;
Abstract
The method of the present invention includes a step of preparing a rare earth magnetdisposed for forming a cylinder, a first magnetizing step of applying a first external magnetic field Hto the rare earth magnet, thereby forming a first region Rmagnetized from an inner side to an outer side of the cylinderand a second region Rmagnetized from the outer side to the inner side, and a second magnetizing step of applying a second external magnetic field Hso that an external magnetic field component forming an angle of more than 0° and less than 50° with a direction of the external magnetic field component applied in the first magnetizing step to a boundary between the first region Rand the second region R