Granted Patent
Utility
US 6,747,897 · App. 10/208,172
Semiconductor charge pump circuit and nonvolatile semiconductor memory device
Inventor:
Satoru Karaki
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Jul 29, 2002
Inventor
Satoru Karaki
Assignee (at issue)
SHARP KABUSHIKI KAISHA
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.