Granted Patent
Utility
US 5,109,505 · App. 07/413,707
Semiconductor memory disk apparatus with backup device capable of being accessed immediately after power source is recovered
Inventor:
Jyun-ichi Kihara
Patented Case
View Patent ↗
Granted: Apr 28, 1992
Filed: Sep 28, 1989
Inventor
Jyun-ichi Kihara
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.