Granted Patent
Utility
US 6,703,891 · App. 10/179,222
Charge pump with improved reliability
Inventor:
Hitoshi Tanaka
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Jun 26, 2002
Inventor
Hitoshi Tanaka
Assignees (at issue)
HITACHI, LTD.
Hitachi Ulsi Systems 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.