Title:
SIGNAL RECORDING AND REPRODUCING DISC
Document Type and Number:
Japanese Patent JPS5263615
Kind Code:
A
Abstract:
PURPOSE: A sheet disc is sealed in a jacket, an opening to adjmit the rotation axis if found in the center of the jacket, and a head admitting a hole extending in the radical direction of the sheet disc is formed in both the top and bottom surfaces of the jacket, so that the efficient and large amt. recording may be feasibble.
Inventors:
KASUYA HIROHARU
Application Number:
JP13874675A
Publication Date:
May 26, 1977
Filing Date:
November 20, 1975
Export Citation:
Assignee:
SONY CORP
International Classes:
G11B23/033; G11B5/027; G11B23/02; H04N5/78; (IPC1-7): G11B5/027; H04N5/78
Domestic Patent References:
| JPS4986008A | 1974-08-17 |