Claims
- 1. A magnetic disc comprising a base substrate, a coating layer as an intermediate layer and a layer of magnetic recording medium, wherein said coating layer consists essentially of Cu in the range of 34.+-.5% by weight, P in the range of from 7 to 11% by weight, and the rest, at most 60% by weight, being Ni.
- 2. The magnetic disc according to claim 1, wherein said coating layer is formed by chemical plating.
Priority Claims (3)
Number |
Date |
Country |
Kind |
61-61471 |
Mar 1986 |
JPX |
|
61-122807 |
May 1986 |
JPX |
|
61-193147 |
Aug 1986 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 07/028,115, filed on Mar. 19, 1987, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (5)
Number |
Date |
Country |
164135 |
Dec 1985 |
EPX |
60-261022 |
Dec 1985 |
JPX |
61-03317 |
Jan 1986 |
JPX |
188734 |
Aug 1986 |
JPX |
202326 |
Sep 1986 |
JPX |
Non-Patent Literature Citations (1)
Entry |
"Effect of Heat-Treatments on Magnetic Properties of Electroless Nickel Alloy", May, 1976, pp. 606-614. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
28115 |
Mar 1987 |
|