Granted Patent
Utility
US 6,190,932 · App. 09/389,514
Method of manufacturing tandem type thin film photoelectric conversion device
Inventors:
Masashi Yoshimi, Yoshifumi Okamoto
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Sep 3, 1999
Inventors
Masashi Yoshimi
Yoshifumi Okamoto
Assignee (at issue)
KANEKA 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.