Abstract: A magnetizing printer and a method are described herein for printing one or more magnetic sources (maxels) having a first polarity onto a side of a previously magnetized magnet having an opposite polarity.
Abstract: A magnetic write transducer includes a yoke having a lower pole portion, an upper pole portion, and a first bobbin portion; a first coil turn wrapped around the first bobbin portion of the yoke in a first plane; a second coil turn wrapped around the first bobbin portion of the yoke in a second plane above the first plane; a third coil turn wrapped around the First bobbin portion of the yoke in a third plane above the second plane; and a fourth coil turn wrapped around the first bobbin portion of the yoke in a fourth plane above the third plane.
Type:
Grant
Filed:
April 12, 2007
Date of Patent:
August 23, 2011
Assignee:
International Business Machines Corporation
Inventors:
Robert Glenn Biskeborn, Leif Stefan Kirschenbaum
Abstract: A magnetic head including an induction coil having coil turns that are disposed between two magnetic poles of the magnetic head. The coil turns include a lower coil turn portion and an upper coil turn portion. In fabricating the induction coil, the lower coil turn portion is fabricated first, and the upper coil turn portion is fabricated directly upon the lower coil turn portion. The lower coil turn portion may be fabricated using damascene methods and the upper coil turn portion may be fabricated utilizing photolithographic methods. The lower coil turn portion and the upper coil turn portion of the induction coil turns are electrically connected, such that the thickness of the overall induction coil turns is increased. As a result, the electrical resistance of the coil turns is decreased, and heat generated in the coil is reduced.
Type:
Grant
Filed:
June 28, 2006
Date of Patent:
December 15, 2009
Assignee:
Hitachi Global Storage Technologies B.V.