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Koninklijke Philips NV
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Philips Gloeilampenfabrieken NV
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Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of DE824699CpublicationCriticalpatent/DE824699C/de
H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
H10N30/00—Piezoelectric or electrostrictive devices
H10N30/01—Manufacture or treatment
H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
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Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Compositions Of Oxide Ceramics
(AREA)
DEN914A1949-05-271950-05-24Verfahren zum Polarisieren eines keramischen elektromechanisch empfindlichen Umformermaterials
ExpiredDE824699C
(de)
Ferromagnetisch hochpermeabler Mangan-Zink-Ferritkern mit großer zeitlicher und thermischer Konstanz der Anfangspermeabilität und Verfahren zu dessen Herstellung