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Brevets

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Brevet citant Date de dépôt Date de délivrance Cessionnaire d'origine Titre
US415035214 avr. 197717 avr. 1979Ing. C. Olivetti & C., S.p.A.Precision transducer for position measurements
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US45231705 nov. 198211 juin 1985Spang & CompanyAdjustable air gap ferrite structures and methods of manufacture
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US454355316 mai 198424 sept. 1985Murata Manufacturing Co., Ltd.Chip-type inductor
US456593116 janv. 198521 janv. 1986Electronizue Serge Dassault S.A.Isolated amplifier circuit for amplifying pulses, in particular for a high voltage output
US47500776 janv. 19867 juin 1988Mitsubishi Denki Kabushiki KaishaCoil device
US47699005 août 198713 sept. 1988Murata Manufacturing Co., Ltd.Method of making a chip coil
US480345315 sept. 19877 févr. 1989Murata Manufacturing Co., Ltd.Laminated transformer
US487375727 juin 198817 oct. 1989The Foxboro CompanyMethod of making a multilayer electrical coil
US493772917 mai 198926 juin 1990Bull S.A.Chopper power supply including a printed circuit transformer
US495963128 sept. 198825 sept. 1990Kabushiki Kaisha ToshibaPlanar inductor
US507250828 févr. 199117 déc. 1991Murata Mfg. Co., Ltd.Method of making an inductive-resistive circuit element
US512671420 déc. 199030 juin 1992The United States of America as represented by the Secretary of the NavyIntegrated circuit transformer
US513265017 avr. 199021 juil. 1992LC noise filter
US514276713 nov. 19901 sept. 1992BF Goodrich CompanyMethod of manufacturing a planar coil construction
US516696511 avr. 199124 nov. 1992Varian Associates, Inc.High voltage DC source including magnetic flux pole and multiple stacked AC to DC converter stages with planar coils
US51841034 févr. 19912 févr. 1993Bull, S.A.High coupling transformer adapted to a chopping supply circuit
US527639616 mars 19924 janv. 1994Landis & Gyr Betriebs AGPlanar magnetic harmonic sensor for detecting small quantities of magnetic substances
US527850016 mars 199211 janv. 1994Landis & Gyr Betriebs AGPlanar, core saturation principle, low flux magnetic field sensor
US53009119 oct. 19925 avr. 1994International Business Machines CorporationMonolithic magnetic device with printed circuit interconnections
US535300130 oct. 19924 oct. 1994Burr-Brown CorporationHybrid integrated circuit planar transformer
US553266711 oct. 19952 juil. 1996Hughes Aircraft CompanyLow-temperature-cofired-ceramic (LTCC) tape structures including cofired ferromagnetic elements, drop-in components and multi-layer transformer
US55789815 mai 199326 nov. 1996Murata Manufacturing Co., Ltd.Laminated inductor
US558347425 mai 199410 déc. 1996Kabushiki Kaisha ToshibaPlanar magnetic element
US559813521 sept. 199228 janv. 1997Murata Manufacturing Co., Ltd.Transformer
US559832728 janv. 199428 janv. 1997Burr-Brown CorporationPlanar transformer assembly including non-overlapping primary and secondary windings surrounding a common magnetic flux path area
US57838793 juin 199721 juil. 1998Eastman Kodak CompanyMicromotor in a ceramic substrate
US584935518 sept. 199615 déc. 1998AlliedSignal Inc.Electroless copper plating
US587766612 mars 19972 mars 1999Lucent Technologies Inc.Stackable, passively-tunable, cost-reduced inductor
US594590222 sept. 199731 août 1999Zefv LipkesCore and coil structure and method of making the same
US597060424 juin 199726 oct. 1999Dale Electronics, Inc.Method of making monolithic thick film inductor
US597392328 mai 199826 oct. 1999Packaging power converters
US598653318 juin 199616 nov. 1999Dale Electronics, Inc.Monolithic thick film inductor
US60549146 juil. 199825 avr. 2000Midcom, Inc.Multi-layer transformer having electrical connection in a magnetic core
US614757321 nov. 199714 nov. 2000TDK CorporationMultilayer electronic part with planar terminal electrodes
US616980116 mars 19982 janv. 2001Midcom, Inc.Digital isolation apparatus and method
US617529311 mai 199316 janv. 2001Kabushiki Kaisha ToshibaPlanar inductor
US61983741 avr. 19996 mars 2001Midcom, Inc.Multi-layer transformer apparatus and method
US626264930 sept. 199717 juil. 2001Tyco Electronics Logistics AGPower magnetic device employing a leadless connection to a printed circuit board and method of manufacture thereof
US628527312 mars 19974 sept. 2001Murata Manufacturing Co., Ltd.Laminated balun transformer
US629300125 févr. 199925 sept. 2001Matsushita Electric Industrial Co., Ltd.Method for producing an inductor
US63885519 juil. 200114 mai 2002Murata Manufacturing Co., Ltd.Method of making a laminated balun transform
US646612221 nov. 200015 oct. 2002Kabushiki Kaisha ToshibaPlanar inductor
US656805424 févr. 200027 mai 2003TKD CorporationMethod of producing a multilayer electronic part
US658702531 janv. 20011 juil. 2003Vishay Dale Electronics, Inc.Side-by-side coil inductor
US663154517 nov. 200014 oct. 2003Matsushita Electric Industrial Co., Ltd.Method for producing a lamination ceramic chi
US668681222 mai 20023 févr. 2004Honeywell International Inc.Miniature directional coupler
US67474508 mai 20028 juin 2004Samsung-Electro-Mechanics Co., Ltd.Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same
US67536827 mai 200222 juin 2004Samsung Electro-Mechanics Co., Ltd.Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same
US67598458 mai 20026 juil. 2004Samsung Electro-Mechanics Co., Ltd.Weak-magnetic field sensor using printed circuit board manufacturing technique and method of manufacturing the same
US690935031 janv. 200321 juin 2005Matsushita Electric Industrial Co., Ltd.Inductor and method for producing the same
US691188715 mars 200028 juin 2005Matsushita Electric Industrial Co., Ltd.Inductor and method for producing the same
US691188815 janv. 200128 juin 2005Matsushita Electric Industrial Co., Ltd.Inductor and method for producing the same
US691451016 juin 20045 juil. 2005Matsushita Electric Industrial Co., Ltd.Inductor and method for producing the same
US69145136 nov. 20025 juil. 2005Electro-Science Laboratories, Inc.Materials system for low cost, non wire-wound, miniature, multilayer magnetic circuit components
US707899914 avr. 200518 juil. 2006Matsushita Electric Industrial Co., Ltd.Inductor and method for producing the same
US710766615 févr. 200219 sept. 2006BH ElectronicsMethod of manufacturing an ultra-miniature magnetic device
US718388821 oct. 200427 févr. 2007Matsushita Electric Industrial Co., Ltd.High-frequency circuit