Inventor
HIROTA TETSUO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “HIROTA TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTT DOCOMO INC
10 patentsUS7042283B2May 9, 2006
High-efficiency linear power amplifier
NTT DOCOMO INC95 citations97
US7170342B2Jan 30, 2007
Linear power amplification method and linear power amplifier
NTT DOCOMO INC43 citations92
US7084717B2Aug 1, 2006
Quadrature hybrid circuit
NTT DOCOMO INC22 citations92
US6515544B1Feb 4, 2003
Multi-terminal power combining feed-forward amplifier
NTT DOCOMO INC30 citations92
US7245195B2Jul 17, 2007
Coplanar waveguide filter and method of forming same
NTT DOCOMO INC13 citations84
US7119621B2Oct 10, 2006
Power amplifier
NTT DOCOMO INC16 citations84
US7072409B2Jul 4, 2006
Space multiplex radio communication method and radio communication apparatus
NTT DOCOMO INC12 citations84
US7307045B2Dec 11, 2007
Signal switching device
NTT DOCOMO INC3 citations62
US7774034B2Aug 10, 2010
Signal switching device
NTT DOCOMO INC0 citations51
US7183874B2Feb 27, 2007
Casing contained filter
NTT DOCOMO INC0 citations41