Inventor
TODA YOSHIFUMI
JP12 patents
Patents
12 patentsUS5659594AAug 19, 1997
Mobile telephone system capable of adapting a portable telephone set
FUJITSU LTD73 citations95
US5603106AFeb 11, 1997
Adjustable transmission power control circuit
FUJITSU LTD81 citations95
US5256987AOct 26, 1993
Power amplifier device having a plurality of power amplifier units connected in parallel
FUJITSU LTD151 citations95
US5117502AMay 26, 1992
Mobile radio communication system
FUJITSU LTD83 citations95
US5388125AFeb 7, 1995
Frequency converter circuit with improved intermediate frequency stability
FUJITSU LTD22 citations92
US5373532ADec 13, 1994
π/4 quadrature phase shift keying modulator
FUJITSU LTD21 citations92
US5126687AJun 30, 1992
Amplifier system for automatically minimizing distortion
FUJITSU LTD41 citations92
US6343221B1Jan 29, 2002
Digital portable telephone device
FUJITSU LTD17 citations91
US5389899AFeb 14, 1995
Frequency synthesizer having quick frequency pull in and phase lock-in
FUJITSU LTD77 citations91
US5446920AAug 29, 1995
Variable transmission power type transmitter
FUJITSU LTD9 citations73
US5317602AMay 31, 1994
Base-band delayed detector with synchronizing circuit
FUJITSU LTD11 citations73
US6751471B2Jun 15, 2004
Digital portable telephone device
FUJITSU LTD2 citations61