Granted Patent
Utility
US 6,576,398 · App. 09/799,068
Pattern formation material and method
Inventors:
Shinji Kishimura, Masaru Sasago, Masamitsu Shirai, Masahiro Tsunooka
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Mar 6, 2001
Inventors
Shinji Kishimura
Masaru Sasago
Masamitsu Shirai
Masahiro Tsunooka
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.