Patents Assigned to TDK Electronics
  • Film resistor and thin-film sensor with a piezoresistive layer
    Patent number: 11676743
    Abstract: A film resistor and a thin-film sensor are disclosed. In an embodiment a film resistor includes a piezoresistive layer including a first transition metal carbide.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 13, 2023
    Assignee: TDK Electronics AG
    Inventors: Bettina Milke, Bernhard Ostrick
  • COMMON MODE CHOKE AND METHOD OF OPERATION
    Publication number: 20230178282
    Abstract: A common mode choke with extended frequency range and improved reflection in mode conversion is specified. In this case, the common mode choke has a coil with three turns, where a coupling between a first turn and a second turn is different from a coupling between the second turn and an n-th turn, and so on.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 8, 2023
    Applicant: TDK Electronics AG
    Inventors: Fabian BECK, Tobias KORALEK
  • Device providing haptic feedback, and component comprising said device
    Patent number: 11653569
    Abstract: A device having a piezoelectric actuator, which can both detect the actuation force and provide a haptic feedback. The linear expansion of the actuator can be amplified in the desired direction by a deformable metal sheet. The actuator has a flat piezoelectric basic body having plane-parallel main surfaces and two electrodes. The body is designed to generate an active haptic feedback when a force exerted upon the basic body is detected. The haptic feedback is generated in that an actuator voltage, which, by piezoelectric actuator action, results in a change in the length of the basic body, is applied between the electrodes. A cymbal-shaped metal sheet is fastened to the basic body. The body is fixed with the truncated cone vertices between a base and an actuation means connected to the base and fixed by means of a bias, which is set as tensile or compressive stress.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 16, 2023
    Assignee: TDK Electronics AG
    Inventors: Martin Galler, Harald Kastl
  • Device that conveys haptic feedback, and component comprising the device
    Patent number: 11640205
    Abstract: A device including a piezoelectric actuator that can detect the actuation force and provide haptic feedback. The longitudinal extension of the actuator, generated for this purpose, can be reinforced in the desired direction by a deformable metal sheet. The deformable metal sheet is adhered on and has a borehole for pressure equalization.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 2, 2023
    Assignee: TDK Electronics AG
    Inventors: Aditya Rajapurkar, Roman Puchleitner, Daniel Neuwirth, Maximillian Prall
  • Stranded wire contact for an electrical device and method for producing a stranded wire contact
    Patent number: 11600433
    Abstract: An electrical device having a stranded wire contact. The device includes a stranded wire with individual wires and a contact piece for electrical contacting of the stranded wire. The stranded wire contact is produced by thermal diffusion bonding.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 7, 2023
    Assignee: TDK Electronics AG
    Inventors: Yun Jiang, Karl Stoll
  • Coil arrangement and wireless power transfer system comprising a coil arrangement
    Patent number: 11581128
    Abstract: A coil arrangement with reduced core losses is provided. The coil arrangement has a first coil and a second coil and a ferrite layer below the coils. A perpendicular recess in the ferrite layer is provided to reduce magnetic flux density in a center conduction path.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: February 14, 2023
    Assignee: TDK Electronics AG
    Inventor: Thomas Lohmann
  • Switching device
    Patent number: 11557448
    Abstract: In an embodiment a switching device includes at least one stationary contact in a switching chamber containing a gas comprising H2 and one movable contact in the switching chamber, wherein the switching chamber has a switching chamber wall and a switching chamber base, and wherein the switching chamber at least partially comprises a polymer material configured to release hydrogen when heated.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: January 17, 2023
    Assignee: TDK Electronics AG
    Inventors: Robert Hoffmann, Frank Werner
  • Hybrid power supply circuit, use of a hybrid power supply circuit and method for producing a hybrid power supply circuit
    Patent number: 11552353
    Abstract: A hybrid power supply circuit, a method using a hybrid power supply circuit and method for producing a hybrid power supply circuit are disclosed. In an embodiment a hybrid power-supply circuit includes a first energy-storage device and a second energy-storage device, wherein the first and second energy-storage devices are combined in a module and electrically interconnected, and wherein the first energy-storage device is a solid-state accumulator.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: January 10, 2023
    Assignee: TDK Electronics AG
    Inventors: Stefan Koestner, Masahiro Oishi
  • Sensor having a pressing resilience
    Patent number: 11486771
    Abstract: A sensor for measuring a parameter at a measurement point of a surface by means of direct contact. The sensor includes a sensor element arranged movably in the sensor and a spring element that can resiliently absorb an application force with which sensor element is pressed against the measurement point.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 1, 2022
    Assignee: TDK Electronics AG
    Inventors: Clemens Rogge, Carsten Dehoff
  • Magnet coil with reduced losses and systems for wireless power transfer
    Patent number: 11469037
    Abstract: A magnet coil with reduced losses is stated. The coil has for this purpose a coil core and a winding, the turns of which are distributed over a plurality of portions which are mutually spaced.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: October 11, 2022
    Assignee: TDK Electronics AG
    Inventor: Thomas Lohmann
  • Dynamic transmission coil positioning system, wireless power transfer system and method of positioning a transmit coil
    Patent number: 11462953
    Abstract: A dynamic transmit coil positioning system, e.g. for a wireless power transfer system. The positioning system has a drive unit, a movable platform, a transmit coil, an inverter and a controller. The controller is provided for positioning the movable platform via the drive unit to adjust an operating parameter of the transmit coil.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 4, 2022
    Assignee: TDK Electronics AG
    Inventors: Nikola Janjic, Stefan Zbinden, Hugh Hemphill
  • Method for fastening a contact element in an electrical component, and electrical component having a contact element
    Patent number: 11450457
    Abstract: In a method for fastening a contact element (5, 6) in an electrical component (1), a contact element (5, 6) is arranged on a contact surface (3, 4) of a base body (2) of the component (1) and a laser beam (18) is directed onto a region (16, 17) of the contact element (5, 6) in such a way that the base body (2) is not located in the beam direction (24) of the laser beam (18). The contact element (5, 6) is partially melted by the laser beam (18), so that the molten material (7, 8) wets the contact surface (3, 4) and produces fastening of the contact element (5, 6) on the contact surface (3, 4).
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: September 20, 2022
    Assignee: TDK Electronics AG
    Inventors: Thomas Stendel, Jan Ihle, Gerald Kloiber, Thomas Bernert
  • Varistor component and method for securing a varistor component
    Patent number: 11443876
    Abstract: A varistor component and a method for securing a varistor component are disclosed. In an embodiment a varistor component includes a first external contact, a second external contact, a varistor electrically connected to the first external contact, a path between the varistor and the second external contact and an active releasing device having a shutter and a heat sensitive element, wherein, under abnormal operation conditions, the heat sensitive element releases the shutter, and the shutter moves along a straight line and closes the path between the varistor and the second external contact.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: September 13, 2022
    Assignee: TDK Electronics AG
    Inventors: Shaoyu Sun, Xiaojia Tian, Rongguang Zhang
  • Electrolytic capacitor with improved connection part
    Patent number: 11437197
    Abstract: In an embodiment an electrolytic capacitor includes a covering element configured to close an opening of a can comprising a capacitor element. A connection element comprises a lead tab for applying an electrical signal to the capacitor element and a rivet having a first head to fix the lead tab to the covering element. The connection element includes an upper washer arranged between the first head of the rivet and the lead tab. The lead tab has a first section having a first opening and a second section having a second opening. The lead tab is folded such that the first opening and the second opening of the lead tab are arranged above each other. The rivet is arranged in the first and second openings of the lead tab and in an opening of the upper washer.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: September 6, 2022
    Assignee: TDK Electronics AG
    Inventors: Taku Tamada, Joe Liu, Jonathan Zhao
  • Ultrasonic Transducer and Method for Producing an Ultrasonic Transducer
    Publication number: 20220260712
    Abstract: In an embodiment an ultrasonic transducer includes a container having an opening, a base and a wall, a piezoelectric disk arranged within the container on the base, a cover closing the container and an electronics system integrated in the cover, wherein the electronics system makes electrical contact with the piezoelectric disk and is configured to control and to read the piezoelectric disk.
    Type: Application
    Filed: May 29, 2020
    Publication date: August 18, 2022
    Applicants: TDK Electronics AG, TDK Electronics AG
    Inventors: Michael Gebhart, Martina Kreuzbichler, Amira Hedhili, Peter Lukan
  • Device
    Publication number: 20220252158
    Abstract: In an embodiment a device includes a housing with at least a first housing part, a second housing part and an interior space at least partially surrounded by the first and second housing parts and a sealing element, wherein the first housing part includes a first sealing surface and the second housing part includes a second sealing surface, wherein the sealing element abuts the first sealing surface and the second sealing surface, wherein the sealing element has an inner surface in contact with the interior space and an outer surface in contact with a surrounding atmosphere of the housing, and wherein the sealing element includes a material through which gas is exchangeable between the interior space and the surrounding atmosphere.
    Type: Application
    Filed: March 24, 2021
    Publication date: August 11, 2022
    Applicant: TDK Electronics AG
    Inventors: Bettina Milke, Andreas Breuer
  • Electrolytic capacitor with improved connection part
    Patent number: 11404219
    Abstract: In an embodiment an electrolytic capacitor includes a covering element configured to close an opening of a can comprising a capacitor element. A connection element comprises a lead tab for applying an electrical signal to the capacitor element and a rivet having a first head to fix the lead tab to the covering element. The connection element includes an upper washer arranged between the first head of the rivet and the lead tab. The lead tab has a first section having a first opening and a second section having a second opening. The lead tab is folded such that the first opening and the second opening of the lead tab are arranged above each other. The rivet is arranged in the first and second openings of the lead tab and in an opening of the upper washer.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: August 2, 2022
    Assignee: TDK Electronics AG
    Inventors: Taku Tamada, Joe Liu, Jonathan Zhao
  • Driver circuit for analyzing and controlling a piezoelectric component, button providing haptic feedback, and operating method
    Patent number: 11223356
    Abstract: A driver circuit is disclosed.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 11, 2022
    Assignee: TDK Electronics AG
    Inventors: Roman Puchleitner, Harald Kastl, Aditya Rajapurkar, Daniel Neuwirth
  • Switching Device
    Publication number: 20210166905
    Abstract: In an embodiment a switching device includes at least one stationary contact and a movable contact movable from a first switching state to a second switching state by a magnetic armature, wherein the magnetic armature has a spring configured to reset the movable contact from the second switching state to the first switching state, and wherein the spring has a first spring region with a first spring constant and a second spring region with a second spring constant which is greater than the first spring constant.
    Type: Application
    Filed: May 6, 2019
    Publication date: June 3, 2021
    Applicants: TDK Electronics AG, TDK Electronics AG
    Inventor: Robert Hoffmann
  • Isolation transformer with low unwanted resonances, energy transfer device having an isolation transformer and energy transfer device for wireless transfer of energy having an isolation transformer
    Patent number: 11017941
    Abstract: An isolation transformer and an energy transfer device having an isolation transformer are disclosed. In an embodiments an isolation transformer includes an input winding, an output winding, a third winding, a capacitive element and a resistive element, wherein the capacitive element, the resistive element and the third winding are connected in series, and wherein the input winding, the output winding and the third winding are magnetically coupled.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 25, 2021
    Assignee: TDK Electronics AG
    Inventor: Fabian Beck