Patent US5371379A successfully refreshed from Google Patents.
US5371379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production instrument for producing compound semiconductor quantum boxes and light emitting devices using those quantum boxes
Assignee: Panasonic Holdings Corp
•
Filing: 1993-04-09
•
Granted: 1994-12-06
•
Expires: 2013-04-09
Abstract
Abstract A method and instrument are provided for producing compound semiconductor crystallized ultrafine particles of Group II-VI or Groups III-V making use of a vapor phase reaction of an element of Group II or III with an element of Group IV or V. Also disclosed is a gain modulation type quantum box laser element of high performance constructed by geometrically disposing the ultrafine particles.
Inventors
- 👤 Tadashi Narusawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:16
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/30; H01S5/34; H01S5/341; B; B82; B82Y; B82Y20/00; H10; H10H; H10H20/00; H10H20/80; H10H20/81; H10H20/811; H10H20/812; H10H20/817; H10H20/818
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
88 words
A light emitting device comprising a light emitting source including a plurality of compound semiconductor quantum boxes disposed on a substrate at an interval of "a" given by the following equation: a=N·λ/n wherein N is a positive integer, λ is a wavelength of emitted light of said device and n is a media refraction factor, a series of current block layers which surrounds said quantum boxes, and clad layers which sandwich said quantum boxes and current block layers, said current block layers being made of SiO 2 .
Claim 2
Dependent Claim
88 words
A light emitting device comprising a light emitting source including a plurality of compound semiconductor quantum boxes disposed on a substrate at an interval of "a" given by the following equation: a=N·λ/n wherein N is a positive integer, λ is a wavelength of emitted light of said device and n is a media refraction factor, a series of current block layers which surrounds said quantum boxes, and clad layers which sandwich said quantum boxes and current block layers, said current block layers being made of SiO 2 .
Claim 3
Dependent Claim
15 words
The light emitting device of claim 1, wherein said substrate is a compound semiconductor substrate.
References Cited (Backward Citations)
US4575924A
Cited
US4748132A
Cited
US4783427A
Cited
US4751194A
Cited
US4857971A
Cited
US5079186A
Cited
US5229170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-05 | 1998-06-06 | 1998-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-05 | 2002-06-06 | 2002-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-05 | 2006-06-06 | 2006-12-06 | $7700.00 | Window Closed / Lapsed |