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)
07/1988
07/28/1988WO1988005605A1 Piezoelectric multiaxis micropositioner
07/28/1988DE3800230A1 Drive device for an ultrasound motor
07/28/1988DE3701470A1 Method for producing a transducer element for electroacoustic transducers
07/28/1988DE3701469A1 Method for producing a transducer element for electroacoustic transducers
07/27/1988CN87108230A Magnetoelastic torque transducer
07/13/1988EP0273942A1 Fine-positioning piezoelectric device
07/12/1988US4757226 Surface acoustic wave convolver
07/12/1988US4757223 Linear actuator
07/12/1988US4757219 Lamination type of magnetostrictor and manufacturing method thereof
07/12/1988US4756290 Drive circuit of electrostrictive element actuator in diesel engine fuel injection device
07/06/1988EP0273394A2 Lens shutter using an electrostrictive strain element as driving source means
07/05/1988US4755707 Input device
07/05/1988US4755705 Piezoelectric motor
07/05/1988US4755493 Ceramic composition for dielectric ceramic bodies
07/05/1988US4755314 Single crystal wafer of lithium tantalate
06/1988
06/28/1988US4754441 Directional flextensional transducer
06/22/1988EP0271787A2 Personal-protection radio apparatus
06/21/1988US4752712 Piezoelectric laminate stack
06/21/1988US4752711 Vibration wave motor
06/16/1988WO1988004492A1 Drive unit and motor device using the same
06/16/1988WO1988004475A1 Piezoelectric/pyroelectric elements and a process for making same
06/14/1988US4751713 Gas laser having a piezoelectric fan
06/14/1988US4751014 Underwater transducers
06/14/1988US4751013 Porous piezoelectric material and method for making it
06/08/1988EP0270447A1 Echographie probe with an arrangement of piezoelectric elements
06/08/1988EP0270122A2 Magnetoelastic torque transducer
06/07/1988US4749900 Multi-layer acoustic transducer for high frequency ultrasound
06/07/1988US4749898 Superprecision positioning device
06/07/1988US4749897 Driving device for piezoelectric element
06/07/1988US4749896 Vibration wave motor
06/07/1988US4748954 Electrostrictive actuator device and fuel injection device using same
06/07/1988CA1237761A1 Actuator system having magnetomechanical cantilever beam
06/02/1988WO1988004091A1 Echography probe with arrangement of piezoelectric elements
06/02/1988WO1988003846A1 An improved photo-selective plating method
05/1988
05/31/1988US4748366 Novel uses of piezoelectric materials for creating optical effects
05/31/1988CA1237490A1 Piezoceramic coupler control circuit
05/24/1988US4746905 Sound producing device
05/19/1988DE3638342A1 Electrical component, made of ceramic and having multilayer metallisation, and a method for its production
05/11/1988EP0266452A1 Piezoelectric transducer
05/10/1988US4743792 Piezoelectric motor
05/10/1988US4743791 Vibration wave motor
05/10/1988US4743788 Input frequency control device for surface acoustic wave motor
05/10/1988US4743392 Lead-titanium-oxygen, underwater transducer
05/04/1988EP0130180B1 Tubular pneumodynamic bearing
05/03/1988US4742499 Flextensional transducer
05/03/1988US4742263 Piezoelectric switch
05/03/1988US4742261 Constant length strut
05/03/1988US4742260 Piezoelectrically driving device
05/03/1988US4741416 Hydraulic shock absorber with adjustable damping force
05/03/1988CA1236182A1 Piezoelectric resonating device
05/03/1988CA1236154A1 Actuator
04/1988
04/27/1988EP0265090A2 Method for making multisensor piezoelectric elements
04/27/1988EP0264666A1 Activity sensor for a cardiac pace-maker
04/27/1988EP0264612A1 Current sensor and method for registering the current flux in analysing conductors
04/27/1988EP0264403A1 Electrically controlled driving device
04/20/1988EP0264240A2 Piezoelectric or pyroelectric vinylidene cynamide copolymer material
04/20/1988EP0264147A2 Fine positioning device and displacement controller therefor
04/19/1988US4739212 Ultrasonic motor
04/19/1988US4739211 Force transducer
04/19/1988US4738869 Photoselective electroless plating method employing UV-absorbing substrates
04/14/1988DE3634484A1 Transducer plate for piezoelectric transducers
04/12/1988US4737676 Transducer with a flexible piezoelectric layer as a sensor element
04/06/1988EP0262637A2 Piezoelectric actuator
04/06/1988EP0262408A2 Piezoelectric positioner
04/06/1988EP0262248A1 Means for electrically connecting electrodes on different surfaces of piezoelectric polymeric films
04/06/1988CN86108741B Pnn piezoelectric ceramic sintered at ultralow temp.
04/05/1988US4736132 For rapidly and accurately positioning an optical surface
04/05/1988US4736131 Linear motor driving device
04/05/1988US4736129 Ultrasonic motor
04/05/1988CA1234884A1 Polyvinylidene fluoride film for use in wound capacitors
03/1988
03/30/1988EP0261810A2 Drive method for ultrasonic motor providing enhanced stability of rotation
03/29/1988US4734610 Vibration wave motor
03/29/1988US4734228 Surfaces of dielectrics are exposed to jets of charged droplets
03/29/1988US4734044 Connectors for use with piezoelectric polymeric film transducers
03/29/1988CA1234618A1 Piezoelectric transducer and pressure sensor using such a transducer
03/22/1988US4733379 Line array transducer assembly
03/22/1988US4733121 Solid state heat to electricity converter
03/22/1988US4732717 Ceramic particles dispersed in polymer sheet; electrodes
03/22/1988US4732129 Control apparatus for electroexpansive actuator enabling variation of stroke
03/16/1988EP0260238A2 Device for transmitting electric energy to computers and data nets
03/16/1988EP0260173A1 Piezo-electric hydrophones with improved sensitivity
03/16/1988EP0259813A2 Process for making a composite of an electrically conducting polymer and a ceramic material
03/15/1988US4730585 Diesel engine fuel injection system with a rate-of-injection control arrangement
03/09/1988EP0258449A1 Ultrasonic motor
03/02/1988EP0257929A2 Piezoelectric switch
03/01/1988US4728845 1-3-0 Connectivity piezoelectric composite with void
03/01/1988US4728844 Fluoropolymer and bismuth oxide
03/01/1988US4728843 Ultrasonic vibrator and drive control method thereof
03/01/1988US4727757 Ferro-magnetic foil for a torque sensor
02/1988
02/25/1988WO1988001438A1 Piezoelectric switch
02/24/1988CN86108741A Pnn piezoelectric ceramic sintered at ultralow temp. and it's process
02/23/1988US4727278 Piezoelectric multiaxis micropositioner
02/23/1988US4727276 Driving circuit for vibration wave motor
02/23/1988US4726099 Impregnating carbon fibers, calcining; embedding ceramic in polymer matrix
02/16/1988US4725753 For precision remote movement of an object in ultra-high vacuum
02/10/1988EP0255718A2 Use of amphiphilic amide compounds in Z-type Langmuir-Blodgett films
02/10/1988EP0255636A1 Acoustic shock wave sensor
02/09/1988US4724351 Double resonating beam force transducer with reduced longitudinal pumping
02/03/1988CN85101648B Piezoelectric resonance component having an improved group delay time characteristic
02/02/1988US4723086 Coarse and fine motion positioning mechanism