Granted Patent
Utility
US 4,954,729 · App. 07/371,865
Output buffer circuit used for stable voltage source
Inventor:
Takahiko Urai
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jun 27, 1989
Inventor
Takahiko Urai
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.