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:
Mar. 16, 2004
Filed:
Aug. 14, 2001
Yoshinori Honda, Hiratsuka, JP;
Yuuichi Kokaku, Yokohama, JP;
Toshinori Ono, Odawara, JP;
Shigehiko Fujimaki, Machida, JP;
Hiroyuki Kataoka, Naka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic recording medium is provided in which film thickness of the DLC layer is 5 nm or less. A tangential force of the magnetic head is small. The magnetic recording medium has excellent durability to sliding property. A magnetic storage device can be realized that is capable of stable floating of the magnetic head at 10 nm or less. The magnetic recording medium has a primary coat layer, a magnetic layer, and an overcoat layer on a substrate, wherein the overcoat layer is composed of a DLC film, and in an area in which depth from the surface of the DLC film is 13 Å or less, there is formed a CN bond.