Granted Patent
Utility
US 6,272,031 · App. 09/611,948
Voltage generator
Inventor:
Yoshihiro Shona
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Jul 6, 2000
Inventor
Yoshihiro Shona
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., 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.