Patent JPS53124409A successfully refreshed from Google Patents.
JPS53124409A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Recorder of video signal
Assignee: Sony Corp
•
Filing: 1977-04-07
•
Granted: —
•
Expires: 1997-04-07
Abstract
Abstract PURPOSE:To reduce the diameter of a tape guide drum by winding a magnetic tape to the guide drum in such a manner that it opposedly contacts a first or second magnetic head at a specific angle range in one revolution of the first or second head.
Inventors
- 👤 Yoshimi Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-27 19:00
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/008
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.