Granted Patent
Utility
US 6,080,709 · App. 09/131,976
Cleaning solution for cleaning substrates to which a metallic wiring has been applied
Inventors:
Norio Ishikawa, Kiyoto Mori, Hidemitsu Aoki
Patented Case
View Patent ↗
Granted: Jun 27, 2000
Filed: Aug 11, 1998
Inventors
Norio Ishikawa
Kiyoto Mori
Hidemitsu Aoki
Assignees (at issue)
Kanto Kagaku Kabushiki Kaisha
NEC 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.