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. 26, 2012
Filed:
Sep. 30, 2008
Hidetoshi Honda, Miyagi, JP;
Seiichi Onodera, Miyagi, JP;
Naoki Ikeda, Miyagi, JP;
Takanori Sato, Miyagi, JP;
Kazunari Motohashi, Miyagi, JP;
Daizo Shiga, Miyagi, JP;
Hidetoshi Honda, Miyagi, JP;
Seiichi Onodera, Miyagi, JP;
Naoki Ikeda, Miyagi, JP;
Takanori Sato, Miyagi, JP;
Kazunari Motohashi, Miyagi, JP;
Daizo Shiga, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A magnetic recording medium includes a tape-shaped nonmagnetic support, and a vertical magnetic layer formed on a main surface of the nonmagnetic support by a vacuum thin-film forming technique, signals being recorded on and reproduced from the vertical magnetic layer in a linear system. In the magnetic recording medium, the dipulse ratio of the vertical recording layer is 0.36 or more.