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Patent Searching and Data


Title:
OPTICAL FLOPPY DISK DEVICE
Document Type and Number:
Japanese Patent JPS6015877
Kind Code:
A
Abstract:
An optical floppy disk (54) is enclosed in a flexible housing (30) which is optically transparent. The housing and disk are rotated by spindle (62), so that the disk flattens for optical information reading or recording thereon. An optical reading beam (not shown) passes through the housing wall (70) and is focussed on the flattened disk surface, and the spacing of the wall (70) from the disk, and the optical system, ensure that the wall remains out of focus regardless of any imprecise positioning of the housing wall (70).

Inventors:
TOOMASU HAAMAN DEI SUTEFUANO
ROBAATO SADOFUSUKII
Application Number:
JP5130584A
Publication Date:
January 26, 1985
Filing Date:
March 19, 1984
Export Citation:
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Assignee:
IBM
International Classes:
G11B7/24; G11B23/03; G11B17/32; G11B23/00; G11B23/033; (IPC1-7): G11B23/033
Domestic Patent References:
JPS54106204A1979-08-21
JPS531002A1978-01-07
JPS5792443A1982-06-09
JPS5116903A1976-02-10
JPS58177396A1983-10-18
JPS592244A1984-01-07
Attorney, Agent or Firm:
Next student Okada