← Back to Patent Explorer
JPS51146127A Expired / Lapsed JP ⏱️ 0.0 years remaining

Memory device

Assignee: Hitachi Ltd
•
Filing: 1975-06-11
•
Granted: —
•
Expires: 1995-06-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE: A memory device, that compensates defect and promotes yield by combining two memories having defects. COPYRIGHT: (C)1976,JPO&Japio

Inventors

  • 👤 Kazuya Hashimoto

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-30 18:18
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

JPS4815424B1 Cited
JPS4869439A Cited
JPS49129449A Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag