Granted Patent
Utility
US 6,542,526 · App. 09/297,147
Optical information processor and semiconductor light emitting device suitable for the same
Inventors:
Atsuko Niwa, Tsukuru Ohtoshi, Takao Kuroda, Makoto Okai, Takeshi Shimano
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Apr 26, 1999
Inventors
Atsuko Niwa
Tsukuru Ohtoshi
Takao Kuroda
Makoto Okai
Takeshi Shimano
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.