P

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 patents
US5920142AJul 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 patents

HITACHI LTD

1 patent

KAWASAKI OSAMU

1 patent

MATSUSHITA ELECTRIC INDUSTRTIA

1 patent

MITSUBISHI HEAVY IND LTD

1 patent

Showing the top 50 of 58 patents by PatentIndex Score.