Granted Patent
Utility
US 5,644,158 · App. 08/492,690
Semiconductor memory device reducing hydrogen content
Inventors:
Eiji Fujii, Atsuo Inoue, Koji Arita, Toru Nasu, Akihiro Matsuda
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Jun 20, 1995
Inventors
Eiji Fujii
Atsuo Inoue
Koji Arita
Toru Nasu
Akihiro Matsuda
Assignee (at issue)
Matsushita Electronics 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.