Invention Grant
- Patent Title: Method for fabricating magnetic recording medium
- Patent Title (中): 制造磁记录介质的方法
-
Application No.: US456971Application Date: 1995-06-01
-
Publication No.: US5516547APublication Date: 1996-05-14
- Inventor: Teruhisa Shimizu , Shinji Takayama
- Applicant: Teruhisa Shimizu , Shinji Takayama
- Applicant Address: NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: NY Armonk
- Priority: JPX3-254179 19910906
- Main IPC: G11B5/66
- IPC: G11B5/66 ; G11B5/64 ; G11B5/65 ; G11B5/85 ; G11B5/851 ; B05D5/12
Abstract:
The invention is intended to provide a magnetic recording medium suitable for longitudinal recording, which has low medium noise and high coercivity. A magnetic recording medium includes a substrate 1 and a magnetic layer 2 formed on the substrate 1. The magnetic layer 2 consists of a mixture of a magnetic alloy and a non-magnetic compound. The magnetic alloy is Co-based, Fe-based, or CoFe-based, and the non-magnetic compound is selected from a group consisting of oxides and nitrides. The volume percentage of the non-magnetic compound in the entire volume of the mixed magnetic alloy and non-magnetic compound is preferably not less than about 2% and not more than about 30%.
Public/Granted literature
- US4458009A Process for the production of color photographic images and photographic recording materials Public/Granted day:1984-07-03
Information query
IPC分类: