Inventor
TSUKAHARA TSUNEO
JP9 patents
⚠️ This page may combine multiple inventors who share the name “TSUKAHARA TSUNEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
8 patentsUS6239645B1May 29, 2001
Complementary tuned mixer
NIPPON TELEGRAPH & TELEPHONE41 citations92
US6516186B1Feb 4, 2003
Image-rejection receiver
NIPPON TELEGRAPH & TELEPHONE30 citations91
US6871057B2Mar 22, 2005
Mixer circuit
NIPPON TELEGRAPH & TELEPHONE53 citations89
US6549074B2Apr 15, 2003
Transconductance amplifier, filter using the transconductance amplifier and tuning circuitry for transconductance amplifier in the filter
NIPPON TELEGRAPH & TELEPHONE33 citations89
US5714896AFeb 3, 1998
Fractional-N frequency divider system
NIPPON TELEGRAPH & TELEPHONE42 citations89
US6369633B1Apr 9, 2002
Quadrature signal generation system
NIPPON TELEGRAPH & TELEPHONE18 citations82
US6759912B2Jul 6, 2004
Phase locked loop
NIPPON TELEGRAPH & TELEPHONE10 citations71
US7545845B2Jun 9, 2009
Wireless communication system, wireless transmitter, wireless receiver, wireless communication method, wireless transmission method and wireless reception method
NIPPON TELEGRAPH & TELEPHONE0 citations39