Patent EP0162274A1 successfully refreshed from Google Patents.
Patent EP0172445A1 successfully refreshed from Google Patents.
JPS524210A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Flexible disc
Assignee: Hitachi Ltd
•
Filing: 1975-05-28
•
Granted: —
•
Expires: 1995-05-28
Abstract
Abstract PURPOSE:To enable the disc center addressing and the driving effect transmission with a simple unit by attaching reinforcement to one or both sides of the disc.
Inventors
- 👤 Nobutake Ishibashi
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-02 21:12
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/0014; G11B23/0021; G11B23/0028; G11B23/0035
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.