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)
08/1980
08/06/1980EP0013952A1 Filament containing conductive layers, and its use
07/1980
07/22/1980US4214018 Heating to desorb gases, vacuum deposition
07/15/1980CA1081864A1 Manufacture of electrically polarized responsive elements
07/08/1980US4211951 Shear type prestressed piezoelectric force transducer
07/01/1980US4210837 Piezoelectrically driven torsional vibration motor
07/01/1980US4210546 Piezoelectric ceramic compositions
07/01/1980CA1080782A1 Mosaic printer arrangements
06/1980
06/25/1980EP0012583A1 Piezoelectric ceramic production
06/24/1980US4209725 Selenium layer piezoelectric device
06/03/1980CA1078932A1 Quartz crystal resonator
06/03/1980CA1078917A1 Two-directional fine adjusting device
05/1980
05/27/1980US4205248 Quartz crystal vibrator electrode configuration
05/27/1980US4205117 Piezoelectric crystalline film of zinc oxide and method for making same
05/27/1980US4204757 Flash lamp operating mechanism
05/27/1980CA1078532A1 Diffusion bonding of crystals
05/20/1980US4204178 Acoustic wave devices
05/20/1980US4204135 Piezoelectric elements of organic high molecular weight materials
05/20/1980CA1078031A1 Multipole resonator
05/14/1980EP0010983A1 Positioning apparatus
05/13/1980CA1077615A1 Integrally sintered ceramic complex and method of manufacturing the same
04/1980
04/15/1980US4197676 Apparatus for automatic lapping control
04/15/1980CA1075782A1 Surface acoustic wave device
03/1980
03/25/1980US4195243 Piezoelectric wafer mover
03/18/1980US4193703 Matrix printer with piezoelectrically driven printing needles
03/18/1980CA1073705A1 Glassy alloys having near-zero magnetostriction and high saturation induction
03/11/1980US4193010 Sensor device using piezoelectric coating subjected to bending
02/1980
02/26/1980US4190785 Pressure sensitive signal generator using piezoelectric coating
02/26/1980CA1072662A1 Optical scanning
02/19/1980US4189734 Method and apparatus for recording with writing fluids and drop projection means therefor
02/12/1980CA1071750A1 Transducer having piezoelectric film arranged with alternating curvatures
02/12/1980CA1071749A1 Piezo-electric actuating element for a recording head
01/1980
01/29/1980US4185621 Body parameter display incorporating a battery charger
01/22/1980US4185218 Piezoelectric acoustic surface wave filter coupler
01/22/1980US4184971 Ferromagneticpiezoelectric ceramic composition
01/09/1980EP0006624A2 Method for manufacturing ultrasonic transducers
01/08/1980US4183010 Pressure compensating coaxial line hydrophone and method
01/08/1980US4182793 Contains copper sulfide, telluride, selenide, selenate, phosphide, phosphate
01/08/1980CA1069610A1 Piezoelectric crystal
01/01/1980US4180892 Method for the manufacture of a force transducer
12/1979
12/11/1979US4178527 Quartz crystal tuning fork vibrator with unexcited tine centers for reduced flexural amplitudes
12/11/1979CA1067993A1 Piezoelectric transducers
12/04/1979US4176976 Mosaic printing head
11/1979
11/27/1979US4176030 Method for forming a quartz crystal vibrator
11/20/1979CA1066798A1 Vibration detecting device and a method for adapting the same
11/14/1979EP0005265A2 Method for making contact on the adhesive side of the electrode of an electrical device
11/13/1979US4174421 Piezoelectric crystalline film of zinc oxide and method for making same
11/06/1979US4173659 Method for manufacturing sensitive elements having a permanent electric polarization
10/1979
10/30/1979US4172908 Quartz crystal vibrator
10/09/1979US4170737 Top-entry transmission electron microscope
10/09/1979US4170498 Transducer
10/09/1979CA1064087A1 Cylindrical magnetostrictive transducer
10/02/1979US4169803 Ferromagnetic piezoelectric ceramic composition
09/1979
09/25/1979US4169276 Drive circuit for controlling a movable magnetic head
09/04/1979CA1061687A1 Method of polarization of a ferroelectric material
08/1979
08/28/1979US4166258 Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators
08/28/1979US4166230 Slotted, electroded piezoelectric wafer for electro-optic devices
08/28/1979US4166229 Piezoelectric polymer membrane stress gage
08/28/1979CA1061474A1 Method of monitoring the machining by ion bombardment, of a piezoelectric wafer
08/14/1979US4164676 Piezoelectric crystalline film of zinc oxide containing additive elements
07/1979
07/31/1979US4163168 Two-directional piezoelectric driven fine adjusting device
07/24/1979US4162415 Acoustic surface wave transducer and filter built around this transducer
07/24/1979US4162111 Piezoelectric ultrasonic transducer with damped housing
07/17/1979US4161670 Circuit arrangement for driving piezoelectric ink jet printers
07/10/1979US4160928 Case assembly for piezoelectric resonator
07/03/1979US4160184 Piezoelectric actuator for a ring laser
07/03/1979CA1057846A1 Piezoelectric stack insulation
06/1979
06/26/1979US4159435 Acoustic wave devices employing surface skimming bulk waves
06/19/1979US4158368 Magnetostrictive transducer
05/1979
05/30/1979EP0002161A2 Piezo-electric transducing device and process for its manufacture
05/29/1979US4156825 Piezoelectric high voltage generating device
05/29/1979US4156823 Method for damping an ultrasonic transducer
05/22/1979US4156214 Multipole resonator
05/22/1979US4156050 Piezoelectric crystalline films and method of preparing the same
05/22/1979CA1055146A1 High power piezoelectric bender
05/15/1979US4154025 Method for preparing oxide piezoelectric material wafers
05/01/1979US4152616 Piezoelectric crystal mounting
05/01/1979US4152280 Molten salt synthesis of modified lead zirconate titanate solid solution powder
05/01/1979US4152178 Sintered rare earth-iron Laves phase magnetostrictive alloy product and preparation thereof
04/1979
04/24/1979US4151432 High density, mechanical strength, electrical resistance
04/24/1979US4151423 Flowing saline water magnetohydrodynamic electric generator
04/24/1979US4151324 Piezoelectric crystalline films and method of preparing the same
04/24/1979US4150981 And boron
04/24/1979CA1053320A1 Trigger device for an electronic flash unit
04/10/1979US4148853 Process for the manufacture of a capacitor dielectric with inner blocking layers
04/10/1979US4148530 Cut angles for piezoelectric quartz crystal elements
04/03/1979US4147911 Adding electro-conductive particles to dielectric particles and heating in microwave oven
03/1979
03/27/1979US4146808 Thinned withdrawal weighted surface acoustic wave interdigital transducers
03/20/1979US4145627 Crimped seal piezoelectric resonator package
03/13/1979US4144117 Method for producing a lithium tantalate single crystal
03/06/1979US4143343 Acoustic surface wave interaction device
02/1979
02/27/1979US4142124 Piezoelectric crystalline ZnO with 0.01 to 20.0 atomic % Mn
02/21/1979EP0000811A1 Camera having an automatic control mechanism and piezoelectric energy conversion means
02/20/1979US4140936 Square and rectangular electroacoustic bender bar transducer
02/13/1979US4139792 High voltage generating device
02/13/1979US4139678 Piezoelectric crystalline films and method of preparing the same
01/1979
01/30/1979US4137475 Thin film, thermoplastic piezoelectric switches
01/30/1979US4136525 Dielectic refrigerator using orientable defect dipoles
01/24/1979EP0000449A1 Improvements in or relating to piezoelectric materials and to methods for producing such materials.
01/23/1979US4136297 Four corner piezoelectric crystal support
01/23/1979US4135963 Lithium tantalate single crystal growth from a platinum-rhodium crucible in an inert gas, nitrogen or reducing gas atmosphere