Granted Patent
Utility
US 6,512,413 · App. 10/154,852
Voltage booster circuit apparatus
Inventors:
Mitsuhiko Okutsu, Shoji Sato
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: May 28, 2002
Inventors
Mitsuhiko Okutsu
Shoji Sato
Assignees (at issue)
HITACHI, LTD.
Hitachi Engineering 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.