| 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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| 01/02/1979 | CA1045425A1 Piezoelectric dental cleaning device |
| 01/02/1979 | CA1045370A1 Method of preparing ferroelectric ceramics |
| 12/19/1978 | US4130624 Piezo-electric disc mounting methods and apparatus |
| 12/05/1978 | US4128616 Micropositioners using a crystal having moveable domain walls |
| 12/05/1978 | US4128489 Piezo-electric material |
| 12/05/1978 | CA1043841A1 High voltage generating device |
| 11/28/1978 | US4127840 Single crystal of aluminum oxide |
| 11/28/1978 | US4127833 Band pass filter |
| 11/28/1978 | US4127681 Polarized pellicular resin |
| 11/28/1978 | CA1043289A1 Poling machine |
| 11/21/1978 | US4126867 Ink jet printer driving circuit |
| 11/21/1978 | US4126839 Surface acoustic wave apparatus |
| 11/21/1978 | US4126802 Torsional mode CT or DT cut quartz resonator |
| 11/14/1978 | CA1042386A1 Method for continuously polarizing thermoplastic film |
| 11/14/1978 | CA1042385A1 Method of polarizing a high molecular film |
| 10/31/1978 | US4123567 Coating discs with conducting film, removing film from peripheral edge |
| 10/24/1978 | CA1040847A1 Piezoelectric ceramic compositions |
| 10/10/1978 | US4119469 Heat and corrosion resistance, group iii and/or group iv oxides |
| 09/26/1978 | CA1039415A1 Method for producing thermoplastic film electric element |
| 09/12/1978 | USRE29763 Crystal vibrator mounting |
| 09/12/1978 | US4114062 Thickness shear resonator for use as an over-tone quartz crystal |
| 09/12/1978 | CA1038155A1 Piezoelectric ceramics |
| 09/05/1978 | USRE29755 Piezoelectric transducer having a crystal orientation selected from (xyl) + 31.7° (±1°) and (xyl) + 76.7° (±1°) or symmetrical equivalent |
| 09/05/1978 | US4112322 Piezoelectric gas igniter using open frame |
| 08/29/1978 | US4110655 Tin-gold alloy |
| 08/29/1978 | US4110653 Method of modifying the temperature drift of the propagation time of surface elastic waves and a device obtained by said method |
| 08/29/1978 | US4110630 Wave powered electric generator |
| 08/29/1978 | US4109359 Method of making ferroelectric crystals having tailored domain patterns |
| 08/22/1978 | US4109174 Drive circuits for a piezoelectric stack |
| 08/22/1978 | US4109173 High piezoelectric coupling, low diffraction loss, temperature compensated berlinite substrate members for surface acoustic wave devices |
| 08/22/1978 | US4109172 High piezoelectric coupling-temperature compensated berlinite substrate member for surface acoustic wave devices |
| 08/22/1978 | CA1037090A1 Prestressed glass piezoelectric power source |
| 08/08/1978 | US4106065 Drive circuitry for controlling movable video head |
| 08/01/1978 | US4104549 Magnetite ferrite for magnetostrictive vibrators |
| 07/11/1978 | US4099876 Phase-coded control for ring laser gyro |
| 07/11/1978 | US4099519 Diagnostic device |
| 07/04/1978 | US4099211 Positionable transducing mounting structure and driving system therefor |
| 07/04/1978 | US4099078 Quartz crystal tuning fork with three electrodes on each major tine face |
| 06/06/1978 | US4093885 Transducer assembly vibration sensor |
| 06/06/1978 | US4093884 Thin structures having a piezoelectric effect, devices equipped with such structures and in their methods of manufacture |
| 06/06/1978 | US4093883 Piezoelectric multimorph switches |
| 05/30/1978 | US4092588 Method of monitoring the machining by ion bombardment of a piezoelectric wafer |
| 05/23/1978 | US4091302 Portable piezoelectric electric generating device |
| 05/23/1978 | US4090448 Ferroelectric pulsed power source |
| 05/16/1978 | US4089927 Strain sensor employing bi layer piezoelectric polymer |
| 05/09/1978 | US4089034 Machine and method for poling films of pyroelectric and piezoelectric material |
| 05/09/1978 | US4088917 Method and apparatus for the permanent polarization of piezoelectric bodies |
| 05/09/1978 | US4088907 Piezoelectric acoustic emission instrumentation |
| 05/02/1978 | US4087716 Multi-layer element consisting of piezoelectric ceramic laminations and method of making same |
| 05/02/1978 | US4087715 Piezoelectric electromechanical micropositioner |
| 05/02/1978 | US4087366 Composite oxides |
| 04/25/1978 | US4086124 Temperature gradients |
| 04/18/1978 | US4085349 Piezo electric transducer for measuring instantaneous vibration velocity |
| 04/11/1978 | US4084131 Process and apparatus for the determination of the inversion temperature of a quartz piezoelectric resonator element |
| 03/28/1978 | US4080696 Method of making piezoelectric vibrator |
| 03/21/1978 | CA1028363A1 Controlled porosity insulating ceramics and related sintering process |
| 03/14/1978 | US4079437 Machine and method for poling films of pyroelectric and piezoelectric material |
| 03/14/1978 | US4078284 Lead titanate |
| 03/07/1978 | US4077558 Vapor deposition of noble metal and tin or indium |
| 02/28/1978 | USRE29559 Compression accelerometer utilizing a lithium niobate piezoelectric crystal |
| 02/28/1978 | US4076987 Multiple resonator or filter vibrating in a coupled mode |
| 02/21/1978 | US4075582 Surface acoustic wave device |
| 01/31/1978 | US4071838 Solid state force transducer and method of making same |
| 01/31/1978 | US4071797 Quartz piezo-electric element vibrating in a coupled mode |
| 01/10/1978 | US4068141 Transducer for surface wave filters with an asymmetrical transfer function |
| 01/03/1978 | US4067056 Poling machine for continuous film of pyroelectric and/or piezoelectric material |
| 12/13/1977 | US4062790 Piezoelectric ceramic compositions |
| 12/13/1977 | US4062105 Method for fabricating ferroelectric ultrasonic transducers |
| 12/06/1977 | US4061816 Integrally sintered ceramic complex and method of manufacturing the same |
| 11/29/1977 | US4060741 High power piezoelectric bender |
| 11/08/1977 | US4057660 Method for producing thermoplastic film electric element |
| 11/08/1977 | US4057324 Method of making a transparent ferroelectric ceramic element |
| 11/01/1977 | US4056743 Oscillating reed electric motors |
| 11/01/1977 | US4056742 Transducer having piezoelectric film arranged with alternating curvatures |
| 11/01/1977 | US4056654 Coating compositions, processes for depositing the same, and articles resulting therefrom |
| 11/01/1977 | US4055878 Stabilization of piezoelectric resin elements |
| 10/18/1977 | US4054806 Drive circuit for piezoelectric high voltage generating device |
| 10/04/1977 | USRE29429 Oscillator for a timepiece |
| 10/04/1977 | US4052584 Method and apparatus for cutting insulating material |
| 10/04/1977 | US4051582 Techniques for producing an acousto-optical component or a wide-band ultrasonic component |
| 09/27/1977 | US4051396 Encapsulation to prevent fracture of piezoelectric high voltage mechanism |
| 09/27/1977 | US4051395 Weight actuated piezoelectric polymeric transducer |
| 09/20/1977 | US4050049 Solid state force transducer, support and method of making same |
| 09/20/1977 | US4049859 Metallized film |
| 09/13/1977 | US4048526 Kinetic sensor employing polymeric piezoelectric material |
| 09/13/1977 | US4047998 Method of polarizing a thermoplastic resin film |
| 09/06/1977 | US4047060 Acoustic transducer with elastomeric coupling |
| 08/09/1977 | US4041536 Optical scanner |
| 08/09/1977 | US4041335 Piezoelectric ceramic resonator with vibration damping means |
| 07/26/1977 | US4038615 Elastic surface wave device |
| 07/26/1977 | US4038571 Piezoelectric dental cleaning device |
| 07/12/1977 | US4035671 Piezoelectric wire matrix printer head |
| 07/05/1977 | US4033791 Magnetostrictive alloy |
| 06/21/1977 | US4030175 Method of making a metal enclosed transducer assembly |
| 06/07/1977 | US4028647 Monolithic crystal filters |
| 05/10/1977 | US4023055 Mounting device for a quartz tuning fork |
| 04/19/1977 | US4019074 LiNbO3 saw device |
| 04/19/1977 | US4019073 Piezoelectric motor structures |
| 04/12/1977 | US4017754 Actuating devices |
| 04/05/1977 | US4016440 Particularly oriented plate-like monocrystalline piezoelectric body and acoustic surface wave filter device employing same |