Granted Patent
Utility
US 6,646,464 · App. 10/020,312
Data hold circuit, a semiconductor device and a method of designing the same
Inventor:
Tetsuya Maruyama
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Dec 18, 2001
Inventor
Tetsuya Maruyama
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.