Granted Patent
Utility
US 6,111,465 · App. 08/948,334
Amplifying unit comprising an input transformer capable of contributing to a wider frequency band of a broadband amplifier
Inventors:
Yuji Kakuta, Yoshiaki Fukasawa, Yasuhiro Shirakawa, Yoshiaki Wakabayashi
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Oct 9, 1997
Inventors
Yuji Kakuta
Yoshiaki Fukasawa
Yasuhiro Shirakawa
Yoshiaki Wakabayashi
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.