| 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) |
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| 04/09/1991 | US5006746 Travelling-wave motor |
| 04/09/1991 | US5005298 Displacement controller for fine positioning device |
| 04/05/1991 | CA2021015A1 Active polarization control servo and method |
| 04/04/1991 | WO1991004586A1 Piezoelectric ceramic composition for actuator |
| 04/04/1991 | WO1991004585A1 Piezoelectric cylindrical transducer for producing or detecting asymmetrical vibrations |
| 04/04/1991 | WO1991004584A1 Miniature actuator |
| 04/03/1991 | EP0420622A2 Frictional material for vibration motor |
| 04/03/1991 | EP0420136A1 Method of producing magnetostriction type torque sensor shafts |
| 04/03/1991 | EP0419778A1 Piezoelectric actuator |
| 04/02/1991 | US5004964 Control apparatus for vibration driven motor |
| 04/02/1991 | US5004945 Piezoelectric type actuator |
| 04/02/1991 | US5004914 Fiber-optic interferometric chemical sensor |
| 04/02/1991 | US5004555 Heat cycle treatment for improving the performance of piezoelectric ceramics |
| 03/27/1991 | EP0419098A1 Cobalt-iron magnetostrictive alloys, and their use in products |
| 03/27/1991 | EP0418360A1 Dielectric substrate with reduced and stabilized surface electrical conductivity, process for its manufacture, and use of the substrate |
| 03/26/1991 | US5003428 Electrodes for ceramic oxide capacitors |
| 03/19/1991 | US5001681 Monolaminar piezoelectric bender bar |
| 03/19/1991 | US5001404 Vibration wave motor |
| 03/19/1991 | US5001382 Stepping motor and a method of driving the same |
| 03/13/1991 | EP0416884A2 Vibration wave driven motor |
| 03/13/1991 | EP0416551A2 Method of producing a displacement device |
| 03/13/1991 | EP0416540A2 Ink jet printer recording head |
| 03/12/1991 | US4999819 Transformed stress direction acoustic transducer |
| 03/12/1991 | US4999536 Vibrator-type actuator |
| 03/06/1991 | EP0415657A2 Vibrator-type actuator |
| 03/06/1991 | EP0415586A2 Improved electro-active composite poling efficiency |
| 03/06/1991 | EP0319565B1 A transporter |
| 03/05/1991 | US4998048 Driving device for vibration wave driven motor |
| 03/05/1991 | US4997177 Method of and apparatus for conveying object by utilizing vibration |
| 03/05/1991 | CA1281123C Line array transducer assembly |
| 02/27/1991 | EP0414138A2 Piezoelectric transformer |
| 02/26/1991 | US4995149 Method for hermetically sealing electronic devices |
| 02/21/1991 | WO1991002382A1 Fine movement device |
| 02/21/1991 | WO1991002169A1 Method of making a microvalve |
| 02/20/1991 | EP0413397A1 Electro-mechanical transducer and positioning device comprising such an electro-mechanical transducer |
| 02/20/1991 | EP0413111A1 Ultrasonic progressive wave motor with two or more steps |
| 02/20/1991 | EP0413042A1 Method of producing micromechanical sensors for the AFM/STM profilometry and micromechanical AFM/STM sensor head |
| 02/20/1991 | EP0413041A1 Method of producing micromechanical sensors for the AFM/STM profilometry and micromechanical AFM/STM sensor head |
| 02/19/1991 | US4994703 Containing photopolymerizable compound |
| 02/14/1991 | DE3926512A1 Low speed in situ electromotor or engine - produces slow relative movement between outer surfaces and intermediate flexible body |
| 02/14/1991 | DE3926350A1 Mfg. piezoelectric composite plate - heating support and piezoceramic layer separately up to adhesive layer attaining adhesive temp. |
| 02/12/1991 | US4992694 Piezoelectric crystal element on the basis of GAPO4 |
| 02/12/1991 | US4991309 Fine positioning device and displacement controller therefor |
| 02/06/1991 | EP0411508A2 Method and device for driving a supersonic motor |
| 02/06/1991 | EP0411117A1 Unitary push-pull force transducer |
| 02/05/1991 | US4990835 Automotive motor-driven device controlling and driving system |
| 02/05/1991 | US4990818 Method of making a transducer from a boule of lithium tetraborate and transducer so made |
| 02/05/1991 | US4990817 Chip type electronic part |
| 02/05/1991 | US4990584 Piezoelectric or pyroelectric material |
| 01/30/1991 | EP0410106A2 System for magnification correction of conductive x-ray lithography mask substrates |
| 01/29/1991 | US4988909 Lead, barium, zirconium, and titanium-oxides |
| 01/29/1991 | US4988908 Piezoelectric transducers for a ring laser gyroscope dither motor |
| 01/26/1991 | WO1991001381A1 Piezoelectric cell growth biosensing method and system |
| 01/26/1991 | CA2064188A1 Piezoelectric cell growth biosensing method and system |
| 01/23/1991 | EP0409018A2 Electrodes for electrical ceramic oxide devices |
| 01/22/1991 | US4987526 System to provide high speed, high accuracy motion |
| 01/22/1991 | US4987515 Ceramic capacitor with electrodes formed by reduction |
| 01/22/1991 | US4987334 Piezoelectric dither motor |
| 01/22/1991 | US4986808 Magnetostrictive transducer |
| 01/22/1991 | CA1279399C Connectors for use with piezoelectric polymeric film transducers |
| 01/18/1991 | CA2021277A1 Electrodes for electrical ceramic oxide devices |
| 01/16/1991 | EP0408306A2 Piezoelectric/electrostrictive actuator having at least one piezoelectric/electrostrictive film |
| 01/16/1991 | EP0408305A2 Piezoelectric/electrostrictive actuator |
| 01/16/1991 | EP0407460A1 An integrated mass storage device. |
| 01/15/1991 | US4985926 High impedance piezoelectric transducer |
| 01/15/1991 | US4985195 Method of forming a molecularly polarized polmeric sheet into a non-planar shape |
| 01/15/1991 | US4985108 Noncrystalline magnetic alloy coupled to tacky material |
| 01/10/1991 | DE3920957A1 Piezoelectric foil as appts. coating - surrounds appts. completely and responds to touching contact |
| 01/09/1991 | EP0407099A1 Multi-layered ceramic elements and method for producing same |
| 01/09/1991 | EP0406843A2 Vibration driven motor and system |
| 01/09/1991 | EP0406807A2 Sheet feeding device |
| 01/09/1991 | EP0406413A1 Scanning type tunnel microscope |
| 01/08/1991 | US4984222 Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length |
| 01/08/1991 | US4983875 Actuator |
| 01/08/1991 | US4983874 Vibrator and ultrasonic motor employing the same |
| 01/08/1991 | US4983318 Applying a pulsating electric field |
| 01/06/1991 | CA2020367A1 Multi-layered ceramic elements and method for producing same |
| 01/02/1991 | EP0405854A2 Ultrasonic motor |
| 01/02/1991 | EP0405362A1 Method for manufacturing alloy rod having giant magnetostriction |
| 01/02/1991 | EP0405360A1 Method for manufacturing alloy rod having giant magnetostriction |
| 01/02/1991 | EP0404799A1 Integrated scanning tunneling microscope. |
| 01/01/1991 | US4982309 Metal, metal oxide |
| 12/27/1990 | WO1990016087A2 Piezoelectric device with air-filled kerf |
| 12/27/1990 | EP0404511A2 Ultrasonic motor |
| 12/27/1990 | EP0404158A2 Sheet feeding apparatus |
| 12/27/1990 | EP0404113A2 Sheet feeding apparatus |
| 12/27/1990 | EP0404082A2 Piezoelectric bending transducer and its usage |
| 12/27/1990 | EP0404023A2 Control apparatus for vibration driven motor |
| 12/25/1990 | US4980599 Ultrasonic motor |
| 12/25/1990 | US4980597 Ultrasonic motor with vibration suppressor |
| 12/25/1990 | US4980596 Acoustic charge transport device having direct optical input |
| 12/25/1990 | US4979275 Device for magnifying displacement of piezoelectric element or the like and method for producing same |
| 12/20/1990 | DE4025435A1 Piezoelectric flexural transducer with graphite fibre layer - comprising fabric impregnated with epoxide] resin, bonded between piezoceramic layers |
| 12/19/1990 | EP0403298A2 Driving device for ultrasonic wave motor |
| 12/18/1990 | US4978882 Vibration wave driven motor |
| 12/18/1990 | US4978881 Piezoelectric actuator of lamination type |
| 12/18/1990 | CA1278088C Piezo-electric device |
| 12/13/1990 | DE4017409A1 Oriented crystalline ferroelectric thin film - which is crystallised silica-based glass substrate |
| 12/12/1990 | EP0401802A2 Drive system of actuator having piezoelectric device for use in motor vehicle |
| 12/12/1990 | EP0401762A2 Vibration driven motor |