Granted Patent
Utility
US 6,463,188 · App. 09/531,777
Optical integrated circuit device
Inventors:
Hiromi Takahashi, Hideki Ono
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Mar 21, 2000
Inventors
Hiromi Takahashi
Hideki Ono
Assignee (at issue)
OKI ELECTRONIC INDUSTRIES CO., 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.