Granted Patent
Utility
US 5,739,643 · App. 08/534,823
Device for supplying electric power to flashlamp and method thereof
Inventor:
Takeshi Usui
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Sep 27, 1995
Inventor
Takeshi Usui
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.