P

Inventor

NAKATSUKA HIROSHI

JP76 patents
⚠️ This page may combine multiple inventors who share the name “NAKATSUKA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

22 patents
US6566821B2May 20, 2003

Drive device and drive method for a cold cathode fluorescent lamp

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD174 citations99
US7259498B2Aug 21, 2007

Piezoelectric resonator, filter, and duplexer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD60 citations98
US7230511B2Jun 12, 2007

Thin film bulk acoustic resonator, method for producing the same, filter, composite electronic component device, and communication device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD60 citations98
US7414495B2Aug 19, 2008

Coupled FBAR filter

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD44 citations93
US7301420B2Nov 27, 2007

Piezoelectric resonator filter

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations93
US7235915B2Jun 26, 2007

Acoustic resonator device, filter device, manufacturing method for acoustic resonator device, and communication apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations93
US6794796B2Sep 21, 2004

Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US6737816B2May 18, 2004

Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations93
US6583534B1Jun 24, 2003

Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations93
US6433458B2Aug 13, 2002

Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations93
US6720705B2Apr 13, 2004

Method of driving a piezoelectric transformer and power source apparatus using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US7224105B2May 29, 2007

Piezoelectric element, composite piezoelectric element, and filter, duplexer and communication equipment using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations84
US7113055B2Sep 26, 2006

Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations84
US7034800B2Apr 25, 2006

Driving circuit and driving method for piezoelectric transformer, backlight apparatus, liquid crystal display apparatus, liquid crystal monitor, and liquid crystal TV

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations84
US6509700B2Jan 21, 2003

Apparatus and method for driving a cathode discharge tube

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations84
US7408429B2Aug 5, 2008

Coupled FBAR filter

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US7202592B2Apr 10, 2007

Piezoelectric transformer, power supply circuit and lighting unit using the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US7145281B2Dec 5, 2006

Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US7138888B2Nov 21, 2006

Filter using piezoelectric resonator

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US7038354B2May 2, 2006

Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panel

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations74
US7012578B2Mar 14, 2006

Light emission control device, backlight device, liquid crystal display apparatus, liquid crystal monitor and liquid crystal television

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6812623B2Nov 2, 2004

Piezoelectric transformer

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74

PANASONIC CORP

9 patents

CASIO COMPUTER CO LTD

6 patents

MAZDA MOTOR

4 patents

NAKATSUKA HIROSHI

4 patents

YAMAKAWA TAKEHIKO

2 patents

SMC KK

1 patent

NITTO DENKO CORP

1 patent

MAZDA MOTOR CORRPORATION

1 patent

Showing the top 50 of 76 patents by PatentIndex Score.