Granted Patent
Utility
US 6,750,707 · App. 10/066,694
Multi-carrier RF amplifiers
Inventors:
Ken Takei, Kenji Sekine
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Feb 6, 2002
Inventors
Ken Takei
Kenji Sekine
Assignee (at issue)
HITACHI, LTD.
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.