Granted Patent
Utility
US 5,124,269 · App. 07/633,192
Method of producing a semiconductor device using a wire mask having a specified diameter
Inventors:
Kenji Kobayashi, Kazunori Tsuge, Yoshihisa Tawada
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Dec 28, 1990
Inventors
Kenji Kobayashi
Kazunori Tsuge
Yoshihisa Tawada
Assignee (at issue)
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
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.