Granted Patent
Utility
US 6,384,686 · App. 09/881,013
Radio communication apparatus and radio frequency power amplifier
Inventors:
Hirotaka Ueno, Yasuhiro Nunogawa, Tetsuaki Adachi
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Jun 15, 2001
Inventors
Hirotaka Ueno
Yasuhiro Nunogawa
Tetsuaki Adachi
Assignees (at issue)
HITACHI, LTD.
Hitachi Ulsi Systems Co., Ltd.
Hitachi Tohbu Semiconductor, 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.