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)
10/1999
10/21/1999DE19853324A1 Horizontal driving gear with linear actuators
10/21/1999DE19817482A1 Thick ferroelectric ceramic layers, useful as actuators, sensors, capacitors, vibrators or storage elements, or for ferroelectric printing processes
10/21/1999DE19817038A1 Piezomotor Piezomotor
10/21/1999DE19814697C1 Piezoelectric actuator, especially multilayer ceramic piezo-actuator used as positioning device, ultrasonic emitter, valve controller or sensor
10/20/1999EP0951078A1 Piezomotor
10/20/1999EP0950889A1 A piezoelectric sensor device and a method for detecting change in electric constants using the device
10/19/1999US5969954 AC/DC converter with a piezoelectric transformer
10/19/1999US5969465 Adjusting operating characteristics of micromachined torsional oscillators
10/19/1999US5969464 Drive device using electromechanical transducer and an apparatus employing the drive device
10/19/1999US5969462 Extensional mode piezoelectric crystal resonator with split electrodes and transformer driving circuit
10/19/1999US5969236 Particle sensor
10/19/1999US5966787 Piezoelectric actuator,
10/14/1999WO1999052158A1 Pulse frequency modulation drive circuit for piezoelectric transformer
10/14/1999WO1999013681B1 Aerogels, piezoelectric devices, and uses therefor
10/14/1999DE19916380A1 New piezoelectric ceramic with a high electromechanical coupling coefficient especially for producing a monolithic piezoelectric element
10/13/1999EP0949693A1 Piezoelectric/electrostrictive element
10/13/1999EP0948821A1 Method for tuning thin film fbars
10/13/1999CN2343679Y 压电式陶瓷升压器 Piezoelectric ceramics booster
10/13/1999CN1045668C Standing wave type piezoelectric motor with position detector and stator making method
10/12/1999USRE36337 Ultrasonic motor
10/12/1999US5965970 Diaphragm structure
10/12/1999US5965804 Knock sensor
10/12/1999US5965219 Misted deposition method with applied UV radiation
10/12/1999US5965057 Composite oxide of zirconium and titanium, in which an oxide of manganese exists in a grain boundary layer at a density higher than that in a crystal grain of said piezoelectric ceramic, and in which a lead glass phase exists in boundary
10/07/1999DE19814594A1 Charging and discharging piezoelectric element to desired voltage
10/06/1999EP0948062A2 Product of non linear piezoelectric material, and method to determine the distribution of characteristic moduls in such a product
10/06/1999EP0947004A1 Rotary piezoelectric motor for vehicle applications
10/06/1999EP0947003A2 Piezoelectric or electrostrictive inertia drive for displacing or positioning in particular heavy objects
10/06/1999EP0947002A1 Piezo-electric driving or adjusting element
10/06/1999EP0947001A1 Method and device for controlling at least one capacitive actuator
10/06/1999EP0947000A1 Method and device for controlling at least one capacitive actuator
10/06/1999EP0946999A1 Method and device for activating a capacitive actuator
10/06/1999EP0946998A1 Device and process for controlling of at least one capacitative actuator
10/05/1999US5963114 Surface-acoustic-wave device having an improved pass-band characteristic and an improved degree of freedom for setting input and output impedances
10/05/1999US5962956 Piezoelectric resonator and electronic component containing same
10/05/1999US5962955 Piezoelectric device and method for fabricating the same, and ink jet printer head and method for fabricating the same
10/05/1999US5962954 Piezo-electric transformer
10/05/1999US5962953 Piezoelectric transformer with monitor electrodes for sensing unbalanced vibration of the transformer
10/05/1999US5962085 Misted precursor deposition apparatus and method with improved mist and mist flow
09/1999
09/30/1999WO1999049092A1 Iron-based magnetic shape memory alloy and method of preparing the same
09/30/1999DE19824916C1 Fuel injection valve for i.c. engine fuel injection system e.g. for automobile
09/30/1999DE19814018A1 Ceramic-polymer, ceramic-ceramic or ceramic-metal composite, e.g. a piezoceramic-polymer composite for an ultrasonic transducer
09/30/1999DE19812981A1 Electromechanical arrangement producing linear movement e.g. for gravure in printing industry
09/30/1999DE19812786A1 Electromechanical arrangement for producing linear movement e.g. for gravure printing
09/30/1999CA2325474A1 Iron-based magnetic shape memory alloy and method of preparing the same
09/29/1999EP0945732A2 A method for optimizing the drive of a piezoelectric actuator, in particular for phacoemulsifier devices, by dynamic detection of its electromechanical characteristics and device based thereupon
09/29/1999EP0945413A1 Zirconia ceramic article
09/29/1999EP0944925A1 Process and device for driving a capacitive actuator
09/29/1999CN1230292A Piezoelectric transformer device
09/29/1999CN1230291A Piezo electric actuator with new type of containing and method for prodn. thereof
09/28/1999US5959505 Crystal oscillator for measuring crystal impedance of a crystal unit
09/28/1999US5959391 Piezoelectric transformer
09/28/1999US5958285 Sintered piezoelectric ceramic, piezoelectric ceramic device, monolithic piezoelectric ceramic device, and method for producing sintered piezoelectric ceramic
09/28/1999US5958154 Comprising nickel-manganese-gallium alloy having austenitic crystal structure above phase transformation temperature and a martensitic twinned crystal structure below phase transformation temperature; magnetocrystalline anisotropy
09/28/1999CA2128311C Process for the manufacture of pzt films
09/23/1999WO1999048197A2 Piezoelectric difraction grating light steering device
09/23/1999DE19802367C1 Mikrodosiervorrichtungsarray und Verfahren zum Betreiben desselben Microdosing and method of operating the same
09/23/1999DE19742447C2 Wanderwellenmotor mit Temperaturmeßeinrichtung und Verfahren zur Temperaturmessung Travelling wave motor with temperature sensing means and method for temperature measurement
09/22/1999EP0943903A1 Mass sensor and mass detection method
09/22/1999EP0943159A1 Electrode edge wave patterns for piezoelectric resonator
09/22/1999EP0868754B1 Magnetic materials
09/21/1999US5955823 High power ultrasonic transducer
09/21/1999US5955820 Ultrasonic motor
09/21/1999US5955819 Standing-wave vibration motor
09/21/1999US5954994 Piezoelectric ceramic composition
09/21/1999US5954993 Combining a calcined ceramic powder of a piezoelectric main component comprising pb, zr, ti and o, and moo3, and firing said mixture
09/16/1999WO1999046127A1 Droplet deposition apparatus and method of manufacture
09/16/1999DE19810525A1 Capacitive actuator excitation method e.g. for four-cylinder internal combustion (IC) engine fuel injection valves
09/16/1999DE19810321A1 Current and charge regulation method for capacitive load e.g. piezoactuator operating in kHz range
09/16/1999CA2324290A1 Droplet deposition apparatus and method of manufacture
09/15/1999EP0941434A1 Valve assembly
09/15/1999CN1228876A Device and process for controlling at least one capacitative actuator
09/15/1999CN1228875A Device and process for controlling at least one capacitative actuator
09/15/1999CN1228874A Device and process for controlling of at least one capacitative actuator
09/14/1999US5952766 Optical apparatus
09/14/1999US5952059 Forming a piezoelectric layer with improved texture
09/14/1999US5951908 Piezoelectrics and related devices from ceramics dispersed in polymers
09/14/1999CA2088234C A vibration driven motor or actuator
09/10/1999WO1999045631A2 Actuators and apparatus
09/10/1999WO1999045601A2 Magnetostrictive stress sensor
09/10/1999WO1999045600A2 Piezoelectric transformer
09/10/1999WO1999045598A1 Piezoelectric device, ink-jet recording head, method fo manufacture, and printer
09/08/1999EP0940863A2 Ultrasonic motor and electronic apparatus having an ultrasonic motor
09/07/1999US5949179 Piezoelectric transformer and power supply including the same
09/07/1999US5949178 Vibration wave driving apparatus and a vibration member, and manufacturing method of the apparatus and the member
09/07/1999US5949177 Linear piezoelectric motor employing internal feedback
09/07/1999US5948652 Method of manufacturing a piezosensitive material or a magnetic material
09/07/1999US5946969 Lever displacement enlarging mechanism
09/02/1999WO1999044282A1 Device for controlling ultrasonic motor
09/02/1999WO1999044281A1 Method of driving ultrasonic motor
09/02/1999WO1999044280A1 Ultrasonic motor
09/02/1999WO1999044279A1 Ultrasonic motor
09/02/1999DE19906836A1 Piezoelectric ceramic composition for piezoelectric ceramic filters and oscillators
09/02/1999DE19906835A1 New piezoelectric ceramic composition useful for piezoelectric ceramic filters and oscillators
09/02/1999DE19904858A1 Piezoelectric actuator for ink jet print head, facsimile machines and copiers
09/02/1999DE19807903A1 Force transmission device e.g. for engine common rail fuel injection system
09/01/1999EP0938753A1 Piezoelectric actuator with an electrical connection
09/01/1999EP0819048A4 Method for making a thin layer composite unimorph ferroelectric driver and sensor
09/01/1999CN1227200A Piezoelectric ceramics and piezoelectric device
08/1999
08/31/1999US5945771 Vibration wave driven motor and a printing apparatus