Granted Patent
Utility
US 5,331,572 · App. 07/871,287
Integrated circuit and layout system therefor
Inventor:
Naoya Takahashi
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Apr 20, 1992
Inventor
Naoya Takahashi
Assignee (at issue)
NEC CORPORATION
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.