Patents
Patents for H01L 41 - Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof (34,459)
02/1988
02/02/1988US4723085 Vibration wave motor
01/1988
01/26/1988US4721447 Shaping tool for an extruder or calibrator for thermoplastic material
01/20/1988EP0253512A2 Preparation of lead titanate for use in piezoelectric composite transducers
01/20/1988EP0253375A2 Two-dimensional piezoelectric actuator
01/20/1988EP0252929A1 Electrically variable piezoelectric hybrid capacitor.
01/19/1988US4720077 Fuel injection valve
01/14/1988WO1988000399A1 Fine-positioning piezoelectric device
01/14/1988WO1988000132A1 Process for making polarized material and polarized products
01/13/1988EP0252248A2 Actuator
01/12/1988US4719383 Piezoelectric shear wave resonator and method of making same
01/07/1988EP0251468A2 Magnetostrictive drive module
01/06/1988CN85100710B Low qm piezoelectric ceramic material and its preparation method
12/1987
12/29/1987US4716331 Electrically variable piezoelectric hybrid capacitor
12/29/1987US4715098 Method of making coaxial cable
12/22/1987US4714855 Piezo-electric actuator and stepping device using same
12/22/1987US4714848 Electrically induced mechanical precompression of ferroelectric plates
12/22/1987US4714847 Advanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufacture
12/22/1987US4714797 Composite electromotive apparatus utilizing solar energy and the like
12/17/1987WO1987007767A1 Piezoelectric transducers
12/16/1987EP0249275A2 Lead calcium titanate piezoelectric ceramic element
12/15/1987US4713571 Driving circuit of a vibration wave motor
12/09/1987EP0248432A2 Process for preparing a slender or thin ceramic green body
12/09/1987EP0248233A2 Cathode mounting a high-frequency piezoelectric chip
12/08/1987US4712092 Parallel encoded piezoelectric keyboard switch and array
12/08/1987US4712036 Pressure transducer having a piezoelectric element for pressure measurements at high temperatures particularly for the combustion chamber pressure of internal combustion engines
12/08/1987US4711808 Casting onto a polymer substrate having an ionizing radiation-treated surface; chilling; nonstretching
12/03/1987WO1987007218A1 Piezoelectrically operated fluid pump
12/03/1987DE3618106A1 Piezoelektrisch betriebene fluidpumpe Piezoelectric driven fluid pump
12/02/1987EP0247734A2 Piezoelectric composite materials and method of making
12/02/1987EP0247540A2 Electrostriction effect element
12/01/1987US4710311 Piezoelectric ceramic composition
11/1987
11/24/1987US4709209 Magnetostrictive vibration wave position detecting apparatus with variable threshold detecting valves
11/24/1987US4709183 Linear motor
11/17/1987US4707311 Expansion, molding, resin binder, sintering
11/11/1987EP0244421A1 Mounting for piezoelectric bender of fluid control device
11/10/1987US4705980 Drive control method of ultrasonic vibrator
11/10/1987US4705003 Apparatus for controlling electroexpansive actuator avoiding deterioration of polarization
11/10/1987US4704774 Ultrasonic transducer and method of manufacturing same
11/05/1987WO1987006769A1 Electrically controlled driving device
11/03/1987USH372 Piezoelectric charging device
11/03/1987US4703550 Method for manufacturing a torque sensor
10/1987
10/27/1987US4703218 Piezo-electric assembly
10/27/1987US4703215 Stacked piezoelectric ceramics displacement magnifying device
10/27/1987US4703214 Ultrasonic vibrator and its drive control method
10/27/1987CA1228473A1 Piezoelectric ceramic materials
10/22/1987WO1987006394A1 Connectors for use with piezoelectric polymeric film transducers
10/20/1987US4701660 Piezoelectric transducer for low forces
10/15/1987DE3709533A1 Sensor for mechanical forces preceding from animal or human bodies
10/13/1987CA1228151A1 Piezoelectric coaxial cable having a helical inner conductor
10/07/1987EP0239637A1 Crystalline vinylidene fluoride.
09/1987
09/30/1987EP0239094A2 Semiconductor strain gauge bridge circuit
09/30/1987EP0239085A2 Device for micro-movement of objects
09/30/1987EP0238746A2 Gas pressure transducer
09/29/1987US4697118 Piezoelectric switch
09/29/1987US4697117 Rotary ultrasonic motor
09/29/1987US4696192 Fluid pressure sensor
09/28/1987EP0244421A4 Mounting for piezoelectric bender of fluid control device.
09/24/1987WO1987005670A1 Electrically controllable positioning system
09/23/1987EP0237709A1 Beta phase PVDF film formed by casting it into a specially prepared insulating support
09/23/1987EP0237616A2 Line array transducer assembly
09/22/1987US4695988 Underwater piezoelectric arrangement
09/22/1987US4695756 Laminated terminal layer for electronic component
09/22/1987US4695034 Fluid control device
09/17/1987DE3608494A1 Elektrisch ansteuerbare stelleinrichtung Electrically controllable adjustment device
09/16/1987EP0237250A1 Ferroelectric film device
09/15/1987US4694440 Underwater acoustic wave transmitting and receiving unit
09/15/1987CA1226971A1 Method for producing electret-containing devices
09/09/1987EP0235494A1 Active tactile sensor apparatus and method
09/08/1987US4692672 Vibration wave motor
09/08/1987US4692653 Acoustic transducers utilizing ZnO thin film
09/08/1987US4692652 Vibration wave motor
09/08/1987US4692651 Vibration wave motor
09/08/1987US4692650 Vibration wave motor
09/08/1987US4692649 Driving circuit of a vibration wave motor
09/08/1987US4692285 Process of preparing nonfibrous, piezoelectric polymer sheet of improved activity
09/02/1987EP0234274A2 A linear actuator
09/01/1987US4690143 Pacing lead with piezoelectric power generating means
08/1987
08/27/1987WO1987005166A1 Ultrasonic motor
08/25/1987US4689514 Displacement generating device
08/25/1987US4688536 Drive circuit for an electrostrictive actuator in a fuel injection valve
08/25/1987US4688306 Conductive, dielectric polymers
08/18/1987CA1225694A1 Piezoelectric actuator using bimorph element
08/12/1987EP0231940A2 Piezoelectric drive
08/12/1987EP0231892A2 Electric signal transfer element
08/12/1987EP0044342B1 Pressure sensitive piezoelectric polymer signal generator
08/11/1987US4686440 Fine positioning device
08/11/1987US4686407 Split mode traveling wave ring-resonator
08/11/1987CA1225468A1 Method of fabricating composite electrical transducers
08/06/1987DE3603022A1 Piezoelectric relay
08/06/1987DE3546388A1 Compressed-air-driven high-voltage generator
08/05/1987EP0230562A1 Method for preparing piezo-ceramic membranes
08/04/1987US4684842 Gas pressure transducer
08/04/1987US4684841 Saw devices including resistive films
08/04/1987US4684337 Device for polarizing ferroelectric materials
07/1987
07/30/1987DE3614996C1 Elektrisch steuerbare Antriebsvorrichtung Electrically controllable drive device
07/28/1987US4683161 Transducers
07/28/1987CA1224608A1 Process and apparatus for forming non-woven webs from highly oriented melt blown fibers and products produced thereby
07/22/1987EP0229688A2 Mechanical property sensor element and method for making the same
07/22/1987EP0229555A1 Ferro-electric materials composition
07/22/1987EP0229138A1 Langmuir blodgett films