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:
Oct. 19, 2004
Filed:
Jul. 12, 2001
Applicant:
Inventors:
Hideo Ogiwara, Tachikawa, JP;
Takashi Hikosaka, Tokyo, JP;
Soichi Oikawa, Yokohama, JP;
Hiroshi Sakai, Ichihara, JP;
Kenji Shimizu, Chiba, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 ; G11B 5/70 ;
U.S. Cl.
CPC ...
G11B 5/66 ; G11B 5/70 ;
Abstract
A perpendicular magnetic recording medium comprising a layer exhibiting a super paramagnetism is used as the underlying film to enable the recording medium to achieve a high density recording with a low noise.