Inventor

Takashi Kawanami

Inventor

Ishikawa, JP

Overview

1992–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 47 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Pprimary

H01PWaveguides71%

Y10TTechnical subjects covered by former us classification13%

G01RMeasuring electric variables9%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems2%

H03FAmplifiers2%

H04BTransmission2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

PatentTitleYear

10,605,835Current sensor2020 10,274,524Current sensor including a first flow path portion and a second flow path folder and power conversion apparatus including the same2019 10,161,971Current sensor that detects a magnetic field produced by a current2018 10,006,945Electric current sensor2018 9,714,959'Current sensor and electronic device incorporating the same'2017 8,102,220'Non-reciprocal circuit device'2012 7,825,744'Nonreciprocal circuit device'2010 7,808,339'Non-reciprocal circuit element'2010 7,679,470'Nonreciprocal circuit device'2010 7,567,141'Nonreciprocal circuit device and communication apparatus'2009 7,432,777'Non-reciprocal circuit element, composite electronic component, and communication apparatus'2008 7,429,901'Non-reciprocal circuit element, composite electronic component, and communication apparatus'2008 7,420,435'Non-reciprocal circuit element, method for manufacturing the same, and communication device'2008 7,319,369'Non-reciprocal circuit element and communication device'2008 7,253,697'Two-port isolator and communication apparatus'2007 7,227,427'Three-port nonreciprocal circuit device, composite electronic component, and communication apparatus'2007 6,971,166'Method of manufacturing a nonreciprocal device'2005 6,965,277'Two-port non-reciprocal circuit device, composite electronic component, and communication apparatus'2005 6,935,002'Method of manufacturing a nonreciprocal circuit device'2005 6,829,816'Method of manufacturing nonreciprocal circuit device'2004 6,734,751'Center electrode assembly, manufacturing method therefor, nonreciprocal circuit device, and communication apparatus'2004 6,734,753'Nonreciprocal circuit element and communication device'2004 6,724,276'Non-reciprocal circuit device and communication apparatus'2004 6,690,248'Nonreciprocal circuit device including ports having different characteristic impedances and communication apparatus including same'2004 6,677,537'Nonreciprocal circuit device and mounting structure of the same'2004 6,657,513'Nonreciprocal circuit device and communication apparatus including the same'2003 6,639,500'Nonreciprocal circuit device and communication apparatus'2003 6,597,257'Nonreciprocal circuit device and communication apparatus incorporating same'2003 6,583,681'Nonreciprocal circuit device with vertical capacitors above half thickness of the ferrite'2003 6,549,086'Nonreciprocal circuit device with a balanced port and communication device incorporating the same'2003 6,469,588'Nonreciprocal device with solder resist film on the ground terminal'2002 6,420,941'Nonreciprocal circuit device'2002 6,222,425'Nonreciprocal circuit device with a dielectric film between the magnet and substrate'2001 6,118,349'Nonreciprocal circuit device'2000 6,087,905'Nonreciprocal circuit device having a low-pass filter formed on a spacer'2000 6,037,844'Nonreciprocal circuit device'2000 6,020,793'Non-reciprocal circuit device'2000 5,994,974'Isolator comprising three central conductors intersecting each other at predetermined angles'1999 5,945,887'Nonreciprocal circuit device and composite electronic component'1999 5,923,224'Nonreciprocal circuit device'1999 5,896,563'Transmitting and receiving switch comprising a circulator and an automatic changeover switch which includes an impedance circuit'1999 5,774,024'Microwave non-reciprocal circuit element'1998 5,662,754'Method of making a high frequency non-reciprocal circuit element'1997 5,498,999'High-frequency use non-reciprocal circuit element'1996 5,419,947'Non-reciprocal circuit elements'1995 5,379,004'High frequency-use non-reciprocal circuit element'1995 5,159,294'Non-reciprocal circuit element'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2020Patents assigned to MURATA MANUFACTURING CO (44)· patent assignee history

1992–2020Based in Nagaokakyo, JP· patent location history

1995Patents assigned to MURATA MFG CO INC (1)· patent assignee history

1999–2007Based in Ishikawa, JP· patent location history

2003Patents assigned to IURATA MFG CO LTD (1)· patent assignee history

2003–2009Based in Ishikawa-gun, JP· patent location history

2008Based in Kanazawa, JP· patent location history

2010–2012Based in Oumihachiman, JP· patent location history

2012Patents assigned to KAWANAMI TAKASHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MURATA MANUFACTURING CO	44	1992–2020
IURATA MFG CO LTD	1	2003
KAWANAMI TAKASHIself	1	2012
MURATA MFG CO INC	1	1995

Locations

Location	Patents	Span
Ishikawa, JP	22	1999–2007
Nagaokakyo, JP	12	1992–2020
Ishikawa-gun, JP	6	2003–2009
Oumihachiman, JP	4	2010–2012
Kanazawa, JP	2	2008