Granted Patent
Utility
US 6,489,749 · App. 09/806,288
Battery state monitoring circuit having differentiating circuit
Inventors:
Takao Nakashimo, Hiroshi Mukainakano
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Aug 24, 2001
Inventors
Takao Nakashimo
Hiroshi Mukainakano
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.