| 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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| 03/15/1977 | US4012588 Position determining apparatus and transducer therefor |
| 03/08/1977 | US4011474 Piezoelectric stack insulation |
| 02/01/1977 | US4006371 Electroacoustical transducer comprising piezoelectric element |
| 01/25/1977 | US4005319 Piezoelectric generator operated by fluid flow |
| 01/04/1977 | US4001615 Electrically actuated piezoelectric high voltage impact mechanism |
| 12/21/1976 | US3998748 Piezoelectric ceramic compositions |
| 12/21/1976 | US3998523 Electro-optic ceramic material |
| 11/16/1976 | US3992640 Piezo crystal housing and mount |
| 11/09/1976 | US3991330 Acoustic surface wave device using single crystal of Tl3 VS4 or Tl3 NbS4 |
| 11/02/1976 | US3989964 Piezoelectric switch activating means |
| 11/02/1976 | US3989963 Control circuits for piezo electric transducers |
| 10/26/1976 | US3988620 Transducer having enhanced acceleration cancellation characteristics |
| 10/26/1976 | US3988232 Method of making crystal films |
| 10/12/1976 | US3985914 Method for continuously polarizing thermoplastic film |
| 10/12/1976 | US3984903 Method of spanning across a frame a high-molecular-weight piezoelectric element |
| 10/05/1976 | US3984738 Piezoelectric igniter for lighters |
| 09/21/1976 | US3981687 Irradiation polymerization |
| 09/14/1976 | US3980911 Support structure and housing for piezoelectric crystal |
| 08/24/1976 | US3976899 Snap action mechanical-electrical piezoelectric transducer |
| 08/24/1976 | US3976898 Prestressed glass, aezoelectric electrical power source |
| 08/24/1976 | US3975808 Method for producing a key which is to be actuated by way of a pressure force directioned and dimensioned in a certain manner |
| 08/17/1976 | US3975650 Ultrasonic generator drive circuit |
| 08/03/1976 | US3973149 Devices using piezoelectric Ti3 BX4 compounds |
| 07/20/1976 | US3970880 Crystal mounting structure and method of assembly |
| 07/20/1976 | US3970572 Lead-tin or antimony-titanium-zirconium oxide |
| 07/20/1976 | US3969927 Vibration measuring and the apparatus therefor |
| 06/29/1976 | US3967142 Piezoelectric crystal firing spring and mount |
| 06/29/1976 | US3967141 Piezoelectric energy source |
| 06/15/1976 | US3963631 Calcining, sintering, heat treatment |
| 06/15/1976 | US3963630 Lead zirconate-titanate powder of particle sizes between 0.02 and 0.2 micron, process for producing same, and high-density piezoelectric ceramics made of powder |
| 06/01/1976 | US3961210 Piezoelectric dot resonator driven at a harmonic overtone |
| 05/18/1976 | US3958230 Arrangement including a piezo-ferroelectric body |
| 05/18/1976 | US3958161 Method of controlling the polarization condition of transducers |
| 05/18/1976 | US3957162 Method and device for displacement of a workpiece |
| 05/11/1976 | US3956646 Lithium niobate piezoelectric substrate for use in an elastic surface wave device |
| 05/11/1976 | US3956150 Method of preparing ferroelectric ceramics |
| 05/04/1976 | US3955109 Crystal resonator of (yzw)θ orientation having a thickness to width ratio of less than one |
| 04/27/1976 | US3953836 Acoustic storage device for high-frequency electrical signals |
| 04/27/1976 | US3953825 Electronically focused imaging system and method |
| 04/27/1976 | US3953109 Domain switching element |
| 04/20/1976 | US3952215 Stepwise fine adjustment |
| 04/20/1976 | US3951707 Method for fabricating glass-backed transducers and glass-backed structures |
| 04/13/1976 | US3950659 Method of producing transducers with phase, area and depth controlled polarization |
| 04/06/1976 | US3949247 Mounting arrangement for a piezoelectric element |
| 04/06/1976 | US3949246 Piezoelectric bimorph controlled variable capacitor |
| 04/06/1976 | US3948089 Strain gauge apparatus |
| 03/23/1976 | US3946398 Method and apparatus for recording with writing fluids and drop projection means therefor |
| 03/23/1976 | US3946342 Weighting surface wave filters by withdrawing electrodes |
| 03/23/1976 | US3945099 Method and apparatus for making a surface wave transducer device |
| 03/16/1976 | US3943614 Method of polarizing high molecular weight films |
| 03/09/1976 | US3943387 Process for making a piezoelectric body |
| 02/24/1976 | US3940638 Thin quartz oscillator with support of leads |
| 02/24/1976 | US3940637 Polymeric piezoelectric key actuated device |
| 02/10/1976 | US3938064 Devices using low loss dielectric material |
| 02/03/1976 | US3936678 Magnetically latched piezoelectric striking igniter |
| 02/03/1976 | US3936146 Irregular ferroelectric element for controllable single domain |
| 01/13/1976 | US3932777 Vacuum electrolysis of quartz |
| 01/13/1976 | US3932112 Magnetoelastic, remanent, hysteretic devices |
| 01/06/1976 | US3931446 Polyvinylidene fluoride |