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:
Jul. 04, 2006
Filed:
Jun. 27, 2002
Ryoichi Hiratsuka, Miyagi, JP;
Ichiro Kanagawa, Miyagi, JP;
Kasumi Suzuki, Miyagi, JP;
Tomoe Ozaki, Miyagi, JP;
Ryoichi Hiratsuka, Miyagi, JP;
Ichiro Kanagawa, Miyagi, JP;
Kasumi Suzuki, Miyagi, JP;
Tomoe Ozaki, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A method of manufacturing a metallic thin film type magnetic recording medium is provided. The method comprises the steps of arranging an initial substance of said recording medium in opposition to a plasma discharge electrode, said initial substance comprising a non-magnetic support base, a metallic layer capable of functioning as a metallic electrode formed on said non-magnetic support base and a metallic magnetic layer formed on said metallic layer, and forming a protection film on a surface of said initial substance of said recording medium by way of generating plasma discharge while feeding raw material gas between said metallic layer/said metallic magnetic layer and said plasma discharge electrode.