Inventor
KAWASAKI OSAMU
JP58 patents
⚠️ This page may combine multiple inventors who share the name “KAWASAKI OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
44 patentsUS5920142AJul 6, 1999
Electronic part and a method of production thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD206 citations99
US6154940ADec 5, 2000
Electronic part and a method of production thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD93 citations98
US5998907ADec 7, 1999
Surface acoustic wave devices and their manufacturing method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD102 citations97
US6268983B1Jul 31, 2001
Head actuator driven by piezoelectric element
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD56 citations96
US6111338AAug 29, 2000
Acceleration sensor and method for producing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations96
US6098460AAug 8, 2000
Acceleration sensor and shock detecting device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations96
US6087760AJul 11, 2000
Ultrasonic transmitter-receiver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD79 citations96
US5929555AJul 27, 1999
Piezoelectric resonator and method for fabricating the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations96
US5729186AMar 17, 1998
Resonator ladder surface acoustic wave filter suppressing spurious signals
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD87 citations96
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
US6341851B1Jan 29, 2002
Ink jet recording apparatus including a pressure chamber and pressure applying means
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations93
US5796213AAug 18, 1998
Inverter power source apparatus using a piezoelectric transformer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations93
US6270202B1Aug 7, 2001
Liquid jetting apparatus having a piezoelectric drive element directly bonded to a casing
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations92
US5994821ANov 30, 1999
Displacement control actuator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations92
US5644199AJul 1, 1997
Method for driving an ultrasonic motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD41 citations92
US5461273AOct 24, 1995
Method and an apparatus for controlling a moving velocity of an ultrasonic motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations92
US5438229AAug 1, 1995
Ultrasonic motor and ultrasonic motor control method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5408376AApr 18, 1995
Piezoelectric head actuator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US4853579AAug 1, 1989
Drive method for ultrasonic motor providing enhanced stability of rotation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD50 citations92
US4829209AMay 9, 1989
Ultrasonic motor with stator projections and at least two concentric rings of electrodes
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations92
US6615465B2Sep 9, 2003
Method for producing an acceleration sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations84
US6166611ADec 26, 2000
Resonator ladder type surface acoustic wave filter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US5854528ADec 29, 1998
Ultrasonic motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US6497476B1Dec 24, 2002
Liquid injection device, manufacturing method therefor, liquid injection method and manufacturing method for piezo-electric actuator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6243933B1Jun 12, 2001
Piezoelectric resonator and method for fabricating the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US6227051B1May 8, 2001
Acceleration sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations74
US6050144AApr 18, 2000
Acceleration sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US6043725AMar 28, 2000
Filter circuit having plural passing bands
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
US5408156AApr 18, 1995
Ultrasonic motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6069359AMay 30, 2000
Pyroelectric IR sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US5986522ANov 16, 1999
Piezoelectric filter of the ladder type
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations73
US5739532AApr 14, 1998
Pyroelectric IR sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US5521457AMay 28, 1996
Holding structure for a piezoelectric vibrator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations73
US5448129ASep 5, 1995
Ultrasonic motor with vibrating body and moving body driven thereby
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
US5327040AJul 5, 1994
Ultrasonic motor with a vibrating body and a moving body driven thereby
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations73
US5256928AOct 26, 1993
Ultrasonic motor with a vibrator having recesses
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations73
US6028398AFeb 22, 2000
Cold cathode fluorescent lamp driving apparatus using a piezoelectric transformer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations72
US6084336AJul 4, 2000
Piezoelectric transformer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6513915B1Feb 4, 2003
Variable dot ink-jet printer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US5457351AOct 10, 1995
Ultrasonic motor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US5300851AApr 5, 1994
Linear-type actuator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations62
SHARP KK
2 patentsHITACHI LTD
1 patentKAWASAKI OSAMU
1 patentMATSUSHITA ELECTRIC INDUSTRTIA
1 patentMITSUBISHI HEAVY IND LTD
1 patentShowing the top 50 of 58 patents by PatentIndex Score.