Patent JPS6180650A successfully refreshed from Google Patents.
JPS6180650A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
optical disk device
Assignee: Hitachi Ltd
•
Filing: 1984-09-28
•
Granted: —
•
Expires: 2004-09-28
Abstract
Abstract Translated from Japanese (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Inventors
- 👤 Ikuo Takai
- 👤 高井 郁郎
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-06 08:51
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/0282; G11B19/00; G11B19/20; G11B19/2009; 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.