← Back to Patent Explorer
JPS5414756A Expired / Lapsed JP ⏱️ 0.0 years remaining

Photo switch

Assignee: NTT Inc
•
Filing: 1977-07-06
•
Granted: —
•
Expires: 1997-07-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE:To improve the poorness of coupling efficiency by mechanically changing over fibers with the two stationary jigs provided on the same axial line and the rotary jig disposed therebetween and providing matching oil tanks at the fiber connection parts.

Inventors

  • 👤 Yoshiharu Horikoshi
  • 👤 Seiji Oohara

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-01 11:23
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)

GB1236561A 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