JPS5338280A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Semiconductor laser device
Assignee: NTT Inc
•
Filing: 1976-09-21
•
Granted: —
•
Expires: 1996-09-21
Abstract
Abstract PURPOSE: To cause singlemode oscillation in both longitudinal and transverse modes, suppress transition vibrations and effect stable operation by restricting stripe stripe width in a DFB laser device of a planer stripe structure. COPYRIGHT: (C)1978,JPO&Japio
Inventors
- 👤 Tadahisa Oota
- 👤 Hitoshi Kawaguchi
- 👤 Takeshi Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-06 17:51
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)
JPS5093786A
Cited
JPS50159288A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.