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)
06/2002
06/13/2002DE10158553A1 Control circuit for piezoelectric actuator e.g. for vehicle fuel injection system, has controller that determines timing of switch transition from on to off states so peak charging current value reduces with desired stack charge
06/13/2002DE10060018A1 Piezoelectric actuator e.g. for IC engine, has plate-shaped bearer with at least two separate piezo stacks on both upper and lower sides of bearer and drive output near bearer's longitudinal central axis
06/13/2002DE10059785A1 Arrangement of interdigital electrodes used with piezoelectric foils or fibers for actuator, has electrodes that can be contacted individually to set predefinable traction and thrust regions within structure
06/12/2002EP1212801A1 Method for producing piezo actuators with a multiple-layer structure of piezo layers
06/12/2002EP1212800A1 Improved electroactive polymers
06/12/2002EP1212799A1 Device for controlling at least one capacitive actuator
06/12/2002EP0673311B1 C-axis perovskite thin films grown on silicon dioxide
06/12/2002CN1353502A Electron assembly block
06/11/2002US6404109 Piezoelectric/electrostrictive device having increased strength
06/11/2002US6404108 Piezoelectric actuator
06/11/2002US6404107 Packaged strain actuator
06/11/2002US6404105 Contactor/circuit breaker activated by a piezoelectric motor
06/11/2002US6404104 Vibration type actuator and vibration type driving apparatus
06/11/2002US6404103 Ultrasonic motor and electronic apparatus having ultrasonic motor
06/11/2002US6403012 Method of polarization-treating piezoelectric material
06/11/2002US6402981 Composition of piezoelectric porcelain
06/11/2002US6402304 Piezoelectric actuator, ink jet printing head, printer, method for manufacturing piezoelectric actuator, and method for manufacturing ink jet printing head
06/11/2002US6402303 Functional thin film with a mixed layer, piezoelectric device, ink jet recording head using said piezoelectric device, and ink jet printer using said recording head
06/06/2002WO2002045265A1 Improvements in or relating to filters
06/06/2002WO2002045234A2 Electric power supply for a portable electronic device
06/06/2002WO2002045181A1 Head gimbal assembly with piezoelectric microactuator
06/06/2002WO2002044681A1 Pressure sensor unit
06/06/2002WO2002044103A1 Ceramic material and the production thereof
06/06/2002WO2002017407A3 Piezoelectric composite device and method for making same
06/06/2002WO2001065615A3 Biologically powered electroactive polymer generators
06/06/2002US20020068230 Irradiating with ion beam, determining a correlation between time for ion-beam irradiation and amount of frequency changes, measuring and adjusting to a target value
06/06/2002US20020067106 Film bulk acoustic resonator and method for fabrication thereof
06/06/2002US20020067105 Ultrasonic driving mechanism
06/06/2002US20020066882 Piezoelectric ceramic composition and piezoelectric element containing the same
06/06/2002US20020066722 Laser machining of electroactive ceramics
06/06/2002US20020066525 Film transfer method
06/06/2002US20020066524 Piezoelectric film type actuator, liquid discharge head, and method of manufacturing the same
06/06/2002DE10142157A1 Acoustic resonator for cellular telephone, has compensator that partially offers temperature induced effects caused by negative temperature coefficient of frequency
06/06/2002DE10059100A1 Tragbares elektronische Gerät A portable electronic device
06/06/2002DE10058096A1 Adaptronic microsystem has actuating and sensing microelements embedded in matrix material, and no boundary surface at contact points between insulation and matrix material
06/05/2002EP1210759A1 Piezoelectric drive excited by longitudinal and flexural waves
06/05/2002EP1062098B1 Droplet deposition apparatus and method of manufacture
06/04/2002US6400066 Electronic compensator for a piezoelectric actuator
06/04/2002US6400065 Omni-directional ultrasonic transducer apparatus and staking method
06/04/2002US6400064 Ultrasonic motor and method of fabricating
06/04/2002US6400063 Ultrasonic motor and electronic apparatus having an ultrasonic motor
06/04/2002US6400062 Method and apparatus for temperature compensating a piezoelectric device
06/04/2002US6399529 Electric-field-inducible deformable material
06/04/2002US6399521 Heat resistant barrier; mixed oxide
06/04/2002US6398978 Bismuth layer crystal; resonator; high temperature sensor; lead free; high curie point; strontium, lanthanide, bismuth, titanium oxides
06/04/2002US6398350 Piezoelectric vibrator unit, liquid jet head, manufacturing method of piezoelectric vibrator unit, and manufacturing method of liquid jet head
06/04/2002US6398349 Piezoelectric device, ink-jet printing head, and method for manufacturing same, and printer
06/04/2002US6397676 Piezoelectric oscillator and signal detection apparatus using the same
05/2002
05/30/2002WO2002043163A2 Strain/electrical potential transducer
05/30/2002WO2002043162A1 Inertial rotation device
05/30/2002WO2002043110A2 Terminal block for a monolithic multilayer piezoactuator
05/30/2002WO2002042873A2 Self-powered trainable switching network
05/30/2002WO2002042527A1 Diamond substrate having piezoelectric thin film, and method for manufacturing it
05/30/2002WO2002042239A1 Piezoelectric ceramic
05/30/2002WO2002009202A3 Method for producing a semiconductor component with a piezoelectric or pyroelectric layer
05/30/2002US20020064015 Process for polarizing a ferroelectric material in the shape of a cylinder
05/30/2002US20020064001 Head gimbal assembly with piezoelectric microactuator
05/30/2002US20020063497 Thin Film Resonator And Method
05/30/2002US20020063496 Actuator device
05/30/2002US20020062746 Marking apparatus
05/30/2002CA2467666A1 Self-powered trainable switching network
05/29/2002EP1208634A1 Push-pull high force piezoelectric linear motor
05/29/2002EP1208610A1 Piezoelectric bending transducer
05/29/2002DE10151421A1 The piezo operating element drive circuit for fuel injection unit of motor vehicle, has piezo stack and control circuit which adjusts on period of switching system
05/29/2002DE10147911A1 Beschleunigungssensor Acceleration sensor
05/29/2002DE10142268A1 Piezoelectric ceramic composition for surface acoustic wave device, includes preset amount of lead, calcium, barium and strontium
05/29/2002DE10137121A1 Piezoelektrischer Oszillator A piezoelectric oscillator
05/29/2002DE10055241A1 Piezoaktor Piezoelectric actuator
05/29/2002CN1085637C Sintered piezoelectric ceramics, piezoelectric ceramic device, and preparation process thereof
05/28/2002US6396196 Piezoelectric device
05/28/2002US6396194 Ultrasound motor and electronic apparatus equipped with ultrasonic motor
05/28/2002US6396193 Piezoelectric/electrostrictive device having mutually opposing thin plate portions
05/28/2002US6396192 Electrical circuit for the control of piezoelectric drives
05/28/2002US6396094 Oriented rhombohedral composition of PbZr1-xTixO3 thin films for low voltage operation ferroelectric RAM
05/28/2002CA2313431C System and method for monitoring pressure, flow and constriction parameters of plumbing and blood vessels
05/23/2002WO2002041665A1 Cofired multilayered piezoelectric ceramic materials with base metal electrodes
05/23/2002WO2002041413A1 Piezo flexural transducer unit and piezo valve which is equipped with the same
05/23/2002WO2002009203A3 Microelectronic piezoelectric structure
05/23/2002WO2002009131A3 Semiconductor element comprising a sequence of layers for converting acoustic or thermal signals and electrical voltage changes into each other and method for producing the same
05/23/2002US20020060509 Lame mode quartz crystal resonator
05/23/2002US20020060507 Piezoelectric transducer
05/23/2002US20020060319 Crystal thin film and production method therefor
05/23/2002US20020060306 Piezoelectric ceramic composition and piezoelectric element containing the same
05/23/2002US20020060085 Conductive cap, electronic component, and method of forming insulating film of conductive cap
05/23/2002US20020059830 Acceleration sensor
05/23/2002US20020059717 Method of assembling micro-actuator
05/23/2002US20020059708 Process for fabricating hollow electroactive devices
05/23/2002DE10054247A1 Betätigungselement und Verfahren zu seiner Herstellung Actuating element and process for its preparation
05/23/2002DE10034390A1 Pressure sensor for internal combustion engine, has piezoelectric element which generates a signal during deformation of bar connected with a film
05/22/2002EP1207620A2 Lame mode quartz crystal resonator
05/22/2002EP1207397A1 Acceleration sensor
05/22/2002EP1206804A1 Electrode contact for a piezoceramic actuator and method for producing same
05/22/2002EP1206709A1 Piezo-electric tag
05/22/2002EP1016096A4 Active element for magnetomechanical eas marker incorporating particles of bias material
05/22/2002CN1350612A Pressure-sensitive sensor, object detecting device, and opening-closing device
05/22/2002CN1350071A Wet chemical prepn process of leadless functional barium titanate ceramic film
05/22/2002CN1349954A Piezoelectric ceramic material for ultrasonic motor
05/22/2002CN1349953A Great-power and high-curie temperature piezoelectric ceramic
05/22/2002CN1349870A Drive device and its driving method, and small machine tool using same
05/22/2002CN1085442C Piezoelecric resonator, manufacturing method thereof and electronic component using said piezoelectric resonator