Granted Patent
Utility
US 6,576,503 · App. 09/902,778
Laser diodes and manufacturing methods
Inventors:
Takeshi Kikawa, Shigeo Goto
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Jul 12, 2001
Inventors
Takeshi Kikawa
Shigeo Goto
Assignee (at issue)
HITACHI, LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.