Granted Patent
Utility
US 6,654,680 · App. 09/887,010
CPU diagnosing device and method
Inventors:
Kousaku Shimada, Takashi Okamoto
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Jun 25, 2001
Inventors
Kousaku Shimada
Takashi Okamoto
Assignee (at issue)
HITACHI, 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.