Invention Grant
- Patent Title: Process for producing magnetic recording medium
- Patent Title (中): 磁记录介质的制造方法
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Application No.: US11448076Application Date: 2006-06-07
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Publication No.: US07901737B2Publication Date: 2011-03-08
- Inventor: Nobuhiro Yasui , Toru Den
- Applicant: Nobuhiro Yasui , Toru Den
- Applicant Address: JP Toshiba
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Toshiba
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-171430 20050610
- Main IPC: C23C16/06
- IPC: C23C16/06

Abstract:
A magnetic recording medium is provided which is contaminated less and improved in magnetic properties. The process for producing a magnetic recording medium having a recording layer constituted of magnetic granule portions dispersed in a nonmagnetic matrix portion comprises a first step of forming, on a base body, a nonmagnetic matrix portion, and Cu or Ag granule portions dispersed therein by a gas-phase deposition method, a second step of laminating magnetic granule portions on the Cu or Ag granule portions and laminating an additional nonmagnetic matrix portion on the nonmagnetic matrix portion formed in the first step, and a third step of heat-treating the laminate.
Public/Granted literature
- US20060280862A1 Process for producing magnetic recording medium Public/Granted day:2006-12-14
Information query
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