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.

Date of Patent:
Dec. 29, 2009

Filed:

Jul. 27, 2006
Applicants:

Chee-kheng Lim, Yongin-si, KR;

Eun-sik Kim, Seoul, KR;

Yong-su Kim, Seoul, KR;

Young-hun Im, Suwon-si, KR;

Inventors:

Chee-kheng Lim, Yongin-si, KR;

Eun-sik Kim, Seoul, KR;

Yong-su Kim, Seoul, KR;

Young-hun Im, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/11 (2006.01); G11B 5/23 (2006.01);
U.S. Cl.
CPC ...
Abstract

A perpendicular magnetic recording head includes: a main pole; a return pole spaced a predetermined gap from the main pole; an induction coil inducing a magnetic field on the main pole; and two or more gap shields, wherein the two or more gap shields are formed in the gap between the main pole and the return pole.


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