JPS5651027A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Magnetic recording medium
Assignee: Maxell Ltd
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Filing: 1979-10-02
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Granted: —
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Expires: 1999-10-02
Abstract
Abstract PURPOSE: To increase the SN ratio, by improving the dispersibility of carbon black, through containing a specific carbon black in a magnetic layer. CONSTITUTION: By containing a carbon black including 3wt% or more of voltage matter in a magnetic substance layer, the dispersibility of the carbon black is made excellent and the smoothness of the surface of magnetic substance layer can be improved. Even if the amount of carbon black used is more, the SN ratio can be increased. COPYRIGHT: (C)1981,JPO&Japio
Inventors
- 👤 Seiji Wataya
- 👤 Takeshi Matsuura
- 👤 Akira Morioka
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 10:48
CPC Classifications
—
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