Granted Patent
Utility
US 5,126,826 · App. 07/588,835
Light-emitting or receiving device and method for preparing the same
Inventors:
Kakutaro Kauchi, Toru Tomoshige, Shoji Usuda, Hideyuki Kitayama, Toshikazu Takagi
Patented Case
View Patent ↗
Granted: Jun 30, 1992
Filed: Sep 27, 1990
Inventors
Kakutaro Kauchi
Toru Tomoshige
Shoji Usuda
Hideyuki Kitayama
Toshikazu Takagi
Assignee (at issue)
Mitsui Petrochemical Industries, 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.