Granted Patent
Utility
US 6,757,356 · App. 10/032,295
Electric discharge detection circuit
Inventor:
Shigeki Yagi
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Dec 21, 2001
Inventor
Shigeki Yagi
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.