Granted Patent
Utility
US 6,092,669 · App. 09/274,311
Equipment for producing thin-film solar cell
Inventors:
Katsumi Kushiya, Muneyori Tachiyuki, Takahisa Kase
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Mar 23, 1999
Inventors
Katsumi Kushiya
Muneyori Tachiyuki
Takahisa Kase
Assignee (at issue)
Showa Shell Sekiyu K.K.
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.