Inventor
YUDA NAOKI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “YUDA NAOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
24 patentsUS6980158B2Dec 27, 2005
Mobile telecommunication antenna and mobile telecommunication apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations96
US6496083B1Dec 17, 2002
Diode compensation circuit including two series and one parallel resonance points
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD76 citations96
US5907265AMay 25, 1999
High-frequency circuit board trace crossing and electronic component therefor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD73 citations94
US5594394AJan 14, 1997
Antenna diversity switching device with switching circuits between the receiver terminal and each antenna
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD56 citations94
US6836248B2Dec 28, 2004
Antenna device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US6608534B2Aug 19, 2003
Matching circuit chip, filter with matching circuit, duplexer and cellular phone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations92
US6445261B1Sep 3, 2002
Saw filter antenna sharing device using the same, and mobile communication terminal using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US6445266B1Sep 3, 2002
Multilayer filter having varied dielectric constant regions
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US6177853B1Jan 23, 2001
Multilayer filter with electrode patterns connected on different side surfaces to side electrodes and input/output electrodes
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US7232263B2Jun 19, 2007
Optical communications module and substrate for the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations91
US6366564B1Apr 2, 2002
Diplexer duplexer and two-channel mobile communications equipment
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD54 citations91
US6177911B1Jan 23, 2001
Mobile radio antenna
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations91
US6150898ANov 21, 2000
Low-pass filter with directional coupler and cellular phone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations91
US6388625B1May 14, 2002
Antenna device and mobile communication unit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations89
US5969690AOct 19, 1999
Mobile radio antenna
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations83
US6850779B1Feb 1, 2005
Mobile communication antenna and mobile communication apparatus using it
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US6608533B2Aug 19, 2003
Matching circuit chip, filter with matching circuit, duplexer and cellular phone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations74
US6326863B1Dec 4, 2001
Matching circuit chip, filter with matching circuit, duplexer and cellular phone
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6359531B1Mar 19, 2002
Multilayer filter with electrode patterns connected on different side surfaces to side electrodes and input/output electrodes
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations73
US6335663B1Jan 1, 2002
Multiplexer/branching filter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US5832578ANov 10, 1998
Method of manufacturing a filter by forming strip lines on a substrate and dividing the substrate
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations72
US5489881AFeb 6, 1996
Stripline resonator filter including cooperative conducting cap and film
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations72
US7084825B2Aug 1, 2006
Antenna and electronic device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations71
US7872540B2Jan 18, 2011
Oscillator device and transmitter module using same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations51