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:
Nov. 20, 2012
Filed:
May. 20, 2008
Joo-ho Lee, Hwaseong-si, KR;
Kook-hyun Sunwoo, Hwaseong-si, KR;
Eun-sik Kim, Seoul, KR;
Kyoung-won NA, Seoul, KR;
Sang-hun Lee, Seoul, KR;
Joo-ho Lee, Hwaseong-si, KR;
Kook-hyun Sunwoo, Hwaseong-si, KR;
Eun-sik Kim, Seoul, KR;
Kyoung-won Na, Seoul, KR;
Sang-hun Lee, Seoul, KR;
Seagate Technology International, Cupertino, CA (US);
Abstract
Provided are a perpendicular magnetic recording head and a method of manufacturing the same. The perpendicular magnetic recording head includes a main pole including a pole tip applying a recording magnetic field to a recording medium, a coil surrounding the main pole in a solenoid shape such that recording magnetic field for recording information to a recording medium is generated at the pole tip, and a return yoke forming a magnetic path for the recording magnetic field together with the main pole and surrounding a portion of the coil passing above the main pole. The number of times that the coil passes above the main pole is smaller than the number of times that the coil passes below the main pole.