Granted Patent
Utility
US 4,954,993 · App. 07/214,189
Semiconductor integrated circuit having a plurality of circuit blocks respectively supplied with power from different power sources
Inventors:
Masaya Yamaguchi, Takamasa Suzuki
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jul 1, 1988
Inventors
Masaya Yamaguchi
Takamasa Suzuki
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.