Granted Patent
Utility
US 4,591,654 · App. 06/631,091
Solar cells based on indium phosphide
Inventors:
Masafumi Yamaguchi, Akio Yamamoto, Chikao Uemura
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Jul 16, 1984
Inventors
Masafumi Yamaguchi
Akio Yamamoto
Chikao Uemura
Assignee (at issue)
Nippon Telegraph and Telephone Public Corporation
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.