Inventor
KAWANAMI TAKASHI
JP48 patents
⚠️ This page may combine multiple inventors who share the name “KAWANAMI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
45 patentsUS5945887AAug 31, 1999
Nonreciprocal circuit device and composite electronic component
MURATA MANUFACTURING CO100 citations94
US5896563AApr 20, 1999
Transmitting and receiving switch comprising a circulator and an automatic changeover switch which includes an impedance circuit
MURATA MANUFACTURING CO49 citations93
US6222425B1Apr 24, 2001
Nonreciprocal circuit device with a dielectric film between the magnet and substrate
MURATA MANUFACTURING CO24 citations92
US6020793AFeb 1, 2000
Non-reciprocal circuit device
MURATA MANUFACTURING CO25 citations92
US5923224AJul 13, 1999
Nonreciprocal circuit device
MURATA MANUFACTURING CO22 citations92
US5379004AJan 3, 1995
High frequency-use non-reciprocal circuit element
MURATA MANUFACTURING CO23 citations92
US5159294AOct 27, 1992
Non-reciprocal circuit element
MURATA MANUFACTURING CO33 citations92
US9714959B2Jul 25, 2017
Current sensor and electronic device incorporating the same
MURATA MANUFACTURING CO6 citations84
US7825744B2Nov 2, 2010
Nonreciprocal circuit device
MURATA MANUFACTURING CO8 citations84
US6549086B2Apr 15, 2003
Nonreciprocal circuit device with a balanced port and communication device incorporating the same
MURATA MANUFACTURING CO13 citations84
US6420941B2Jul 16, 2002
Nonreciprocal circuit device
MURATA MANUFACTURING CO14 citations83
US7319369B2Jan 15, 2008
Non-reciprocal circuit element and communication device
MURATA MANUFACTURING CO7 citations74
US6690248B2Feb 10, 2004
Nonreciprocal circuit device including ports having different characteristic impedances and communication apparatus including same
MURATA MANUFACTURING CO8 citations74
US6087905AJul 11, 2000
Nonreciprocal circuit device having a low-pass filter formed on a spacer
MURATA MANUFACTURING CO9 citations74
US10274524B2Apr 30, 2019
Current sensor including a first flow path portion and a second flow path folder and power conversion apparatus including the same
MURATA MANUFACTURING CO3 citations73
US6639500B2Oct 28, 2003
Nonreciprocal circuit device and communication apparatus
MURATA MANUFACTURING CO6 citations73
US6583681B1Jun 24, 2003
Nonreciprocal circuit device with vertical capacitors above half thickness of the ferrite
MURATA MANUFACTURING CO10 citations73
US5994974ANov 30, 1999
Isolator comprising three central conductors intersecting each other at predetermined angles
MURATA MANUFACTURING CO10 citations73
US5774024AJun 30, 1998
Microwave non-reciprocal circuit element
MURATA MANUFACTURING CO12 citations73
US5498999AMar 12, 1996
High-frequency use non-reciprocal circuit element
MURATA MANUFACTURING CO11 citations73
US6037844AMar 14, 2000
Nonreciprocal circuit device
MURATA MANUFACTURING CO11 citations72
US7432777B2Oct 7, 2008
Non-reciprocal circuit element, composite electronic component, and communication apparatus
MURATA MANUFACTURING CO2 citations63
US7227427B2Jun 5, 2007
Three-port nonreciprocal circuit device, composite electronic component, and communication apparatus
MURATA MANUFACTURING CO4 citations63
US6965277B2Nov 15, 2005
Two-port non-reciprocal circuit device, composite electronic component, and communication apparatus
MURATA MANUFACTURING CO6 citations63
US6734753B2May 11, 2004
Nonreciprocal circuit element and communication device
MURATA MANUFACTURING CO2 citations63
US6724276B2Apr 20, 2004
Non-reciprocal circuit device and communication apparatus
MURATA MANUFACTURING CO3 citations63
US6677537B2Jan 13, 2004
Nonreciprocal circuit device and mounting structure of the same
MURATA MANUFACTURING CO3 citations63
US6657513B2Dec 2, 2003
Nonreciprocal circuit device and communication apparatus including the same
MURATA MANUFACTURING CO2 citations63
US11637532B2Apr 25, 2023
Amplifier circuit
MURATA MANUFACTURING CO0 citations62
US11143719B2Oct 12, 2021
Magnetic sensor and current sensor
MURATA MANUFACTURING CO0 citations62
US6829816B2Dec 14, 2004
Method of manufacturing nonreciprocal circuit device
MURATA MANUFACTURING CO2 citations62
US6469588B1Oct 22, 2002
Nonreciprocal device with solder resist film on the ground terminal
MURATA MANUFACTURING CO3 citations62
US5662754ASep 2, 1997
Method of making a high frequency non-reciprocal circuit element
MURATA MANUFACTURING CO5 citations62
US6734751B2May 11, 2004
Center electrode assembly, manufacturing method therefor, nonreciprocal circuit device, and communication apparatus
MURATA MANUFACTURING CO3 citations61
US7253697B2Aug 7, 2007
Two-port isolator and communication apparatus
MURATA MANUFACTURING CO6 citations60
US10605835B2Mar 31, 2020
Current sensor
MURATA MANUFACTURING CO0 citations52
US10161971B2Dec 25, 2018
Current sensor that detects a magnetic field produced by a current
MURATA MANUFACTURING CO1 citations52
US10006945B2Jun 26, 2018
Electric current sensor
MURATA MANUFACTURING CO0 citations52
US6971166B2Dec 6, 2005
Method of manufacturing a nonreciprocal device
MURATA MANUFACTURING CO1 citations51
US7808339B2Oct 5, 2010
Non-reciprocal circuit element
MURATA MANUFACTURING CO0 citations42
US7567141B2Jul 28, 2009
Nonreciprocal circuit device and communication apparatus
MURATA MANUFACTURING CO0 citations42
US7429901B2Sep 30, 2008
Non-reciprocal circuit element, composite electronic component, and communication apparatus
MURATA MANUFACTURING CO0 citations42
US7420435B2Sep 2, 2008
Non-reciprocal circuit element, method for manufacturing the same, and communication device
MURATA MANUFACTURING CO0 citations42
US7679470B2Mar 16, 2010
Nonreciprocal circuit device
MURATA MANUFACTURING CO0 citations41
US6935002B1Aug 30, 2005
Method of manufacturing a nonreciprocal circuit device
MURATA MANUFACTURING CO0 citations40