Granted Patent
Utility
US 6,198,255 · App. 09/549,359
Charge/discharge controlling semiconductor device
Inventor:
Shinichi Yoshida
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Apr 14, 2000
Inventor
Shinichi Yoshida
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.