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. 02, 2009
Filed:
Dec. 27, 2005
Johannes Adrianus Antonius Theodorus Dams, Veldhoven, NL;
Johannes Adrianus Antonius Theodorus Dams, Veldhoven, NL;
ASML Netherlands B.V., Veldhoven, NL;
Abstract
This invention relates to a magnet assembly that includes a ferromagnetic member extending in a first direction, an array of magnetized poles of opposite polarity arranged adjacent to each other in the first direction and mounted on the ferromagnetic member, wherein a magnetized pole of the array of magnetized poles includes a plurality of permanent magnets arranged to generate a diverging magnetic field towards the ferromagnetic member. In the magnet assembly, each permanent magnet of the magnetized pole has a magnetic polarization having a non-zero component in the first direction and a non-zero component in a second direction substantially perpendicular to the first direction.