Granted Patent
Utility
US 6,107,862 · App. 08/807,237
Charge pump circuit
Inventors:
Hiroshi Mukainakano, Kimio Shibata
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Feb 28, 1997
Inventors
Hiroshi Mukainakano
Kimio Shibata
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.