IP Library › Granted Patent US 6,683,324
Granted Patent Utility
US 6,683,324 · Confirmation No. 7427

SEMICONDUCTOR LASER DEVICE IN WHICH THICKNESSES OF OPTICAL GUIDE REGION AND ALGAN CLADDING LAYERS SATISFY PREDETERMINED CONDITION

Inventor: Toshiro Hayakawa
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2003-11-05 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-10-27 LET. Miscellaneous Incoming Letter 1 View
2001-09-26 TRNA Transmittal of New Application 1 View
2001-09-26 SPEC Specification 17 View
2001-09-26 CLM Claims 1 View
2001-09-26 ABST Abstract 1 View
2001-09-26 DRW Drawings-only black and white line drawings 4 View
2001-09-26 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,683,324
App. No.
09/962,138
Filed
2001-09-26
Granted
2004-01-27
Pub. No.
US20020036293A1
Art Unit
2814
PTA
0 days