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.:

US 7903374 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 08, 2011

Filed:

Jun. 15, 2010
Applicant:

Yoshihiro Shiroishi, Hachioji, JP;

Inventor:

Yoshihiro Shiroishi, Hachioji, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/147 (2006.01);
U.S. Cl.
CPC ...
Abstract

A magnetic recording and reading device includes a perpendicular magnetic recording medium, a perpendicular magnetic head having a recording head width having a heat-generating portion and a reading head, a fine adjustment portion, and a R/W-IC. The perpendicular magnetic head is configured to perform magnetic recording on the recording medium while locally heating the recording medium so as to enable a change of the coercive force of the recording medium during the recording after correcting of the position of the perpendicular magnetic head by the fine adjustment portion is completed, and to perform reading of the magnetic recording information with the aid of the reading head after correcting of the position of the perpendicular magnetic head by the fine adjustment portion is completed.


Find Patent Forward Citations

Shiroishi, Yoshihiro. (2011). Magnetic recording and reading device (U.S. Patent No. 7903374). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7903374

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