Granted Patent
Utility
US 6,281,667 · App. 09/652,189
Voltage regulator
Inventor:
Atsuko Matsumura
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Aug 31, 2000
Inventor
Atsuko Matsumura
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.