Passive Components Blog
No Result
View All Result
  • Home
  • News
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Optoelectronics and Isolation
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest
    Rheinmetall Pierburg Pump Technology NanoLam DC-link capacitors for high-power electric vehicle traction inverter applications

    Rheinmetall Funds NanoLam Capacitor Production Scale-Up

    Bourns CSS4C-1216 four-terminal metal-strip current sense resistor for high-current Kelvin measurement

    Bourns Extends 1216 Kelvin Current Sense Resistors

    Modelithics COMPLETE+3D Library v26.3 for Ansys HFSS with RF passive component and 3D electromagnetic simulation models

    Modelithics COMPLETE+3D v26.3 Expands HFSS RF Models

    Samsung Electro-Mechanics low-profile and embedded MLCCs for compact PCB and power-delivery applications

    Samsung Low-Profile and Embedded MLCCs for Compact Devices

    Wk 36 Electronics Supply Chain Digest

    Bourns Adds ACXX57SQ Air Coil Inductors for RF Design

    Samsung Electro-Mechanics MLCC capacitor solutions for high-voltage converter snubbing and GPU power delivery

    Samsung MLCC Options for 1 MW AI Rack Power

    Frenetic planar ER transformer simulation for a 5 kW 800 V-to-50 V PSFB converter, showing low-profile core geometry and high-current planar winding arrangement

    5 kW 800 V-to-50 V PSFB Transformer Design for Data Centers

    Samtec 100-CM 1.0 mm vertical solderless compression-mount 50 ohm RF PCB connector

    Samtec 100-CM 1.0 mm RF Connectors Extend to 120 GHz

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • Knowledge Blog
  • Dossiers
    • AI Hardware Dossier
    • Automotive Dossier
    • Industrial Robotics Dossier
    • Power Converter Dossier
    • Capacitor Dossier
    • Resistor Dossier
    • Inductor Dossier
    • Circuit Protection Dossier
  • Suppliers
    • Who is Who
  • PCNS
    • PCNS 2025
    • PCNS 2023
    • PCNS 2021
    • PCNS 2019
    • PCNS 2017
  • Events
  • Home
  • News
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Optoelectronics and Isolation
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest
    Rheinmetall Pierburg Pump Technology NanoLam DC-link capacitors for high-power electric vehicle traction inverter applications

    Rheinmetall Funds NanoLam Capacitor Production Scale-Up

    Bourns CSS4C-1216 four-terminal metal-strip current sense resistor for high-current Kelvin measurement

    Bourns Extends 1216 Kelvin Current Sense Resistors

    Modelithics COMPLETE+3D Library v26.3 for Ansys HFSS with RF passive component and 3D electromagnetic simulation models

    Modelithics COMPLETE+3D v26.3 Expands HFSS RF Models

    Samsung Electro-Mechanics low-profile and embedded MLCCs for compact PCB and power-delivery applications

    Samsung Low-Profile and Embedded MLCCs for Compact Devices

    Wk 36 Electronics Supply Chain Digest

    Bourns Adds ACXX57SQ Air Coil Inductors for RF Design

    Samsung Electro-Mechanics MLCC capacitor solutions for high-voltage converter snubbing and GPU power delivery

    Samsung MLCC Options for 1 MW AI Rack Power

    Frenetic planar ER transformer simulation for a 5 kW 800 V-to-50 V PSFB converter, showing low-profile core geometry and high-current planar winding arrangement

    5 kW 800 V-to-50 V PSFB Transformer Design for Data Centers

    Samtec 100-CM 1.0 mm vertical solderless compression-mount 50 ohm RF PCB connector

    Samtec 100-CM 1.0 mm RF Connectors Extend to 120 GHz

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • Knowledge Blog
  • Dossiers
    • AI Hardware Dossier
    • Automotive Dossier
    • Industrial Robotics Dossier
    • Power Converter Dossier
    • Capacitor Dossier
    • Resistor Dossier
    • Inductor Dossier
    • Circuit Protection Dossier
  • Suppliers
    • Who is Who
  • PCNS
    • PCNS 2025
    • PCNS 2023
    • PCNS 2021
    • PCNS 2019
    • PCNS 2017
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Prowire Sues Apple for Infringing their Patented Inductor Technology

8.3.2017
Reading Time: 4 mins read
A A

source: Patently Apple article

Patently Apple is first to discover a new patent infringement lawsuit filed against Apple. We’ve learned that the Patent Troll going by the name ‘Prowire LLC’ had acquired a patent from Taiwan for the sole purpose of suing profitable high profile companies like Apple, and not to make a product of any kind. Prowire claims that Apple’s iPad 4 infringes on their acquired patent relating to inductors. The acquired patent notes in its background that “Inductors are considered one of the most common devices in the electronic/electric industry.” And yet somehow, even though Apple owns IP covering inductors that work in their patented iDevices, Prowire believes that Apple had to steal or infringe their acquired invention from Taiwan to make an iPad run right.

RelatedPosts

Rheinmetall Funds NanoLam Capacitor Production Scale-Up

Bourns Extends 1216 Kelvin Current Sense Resistors

Modelithics COMPLETE+3D v26.3 Expands HFSS RF Models

Sarcasm aside, Prowire’s patent infringement lawsuit is based on October 20004U.S. patent 6,137,390 titled “Inductors with minimized EMI effect and the method of manufacturing the same.” The patent, as noted below, was originally assigned to Industrial Technology Research Institute in Taiwan and invented by two Taiwanese citizens.

Prowire states in their complaint before the court, that the iPad 4 infringes on at least claim 1 of their patent that states the following: An inductor with enhanced inductance comprising: (a) a magnetic core; (b) an electrically conducting coil wound about said magnetic core; (c) a magnetic resin layer compression-molded to embed at least a portion of an outer periphery of said electrically conducting coil; and (d) wherein said magnetic resin layer contains a magnetic powder dispersed in a polymer resin.

Prowire claims in their filing specifically that “The inductors used in Defendant’s consumer electronics products including, for example and without limitation, its line of iPad 4 tablet computers, meet each and every element of at least claim 1 of the patent-in-suit. For example and without limitation, the inductors shown in the following photographs [below] meet each and every element of at least claim 1 of the patent-in-suit:

3af 88 prowire photos

The inductors used in Defendant’s iPad 4 tablet computers have enhanced inductance. (image source: Patently Apple)

The inductors used in Defendant’s iPad 4 tablet computers contain a magnetic core.

4af 88 prowire graphic from court doc against apple inc

 

The inductors used in Defendant’s iPad 4 tablet computers contain an electrically conducting coil wound about said magnetic core. (Image source: Patently Apple)

The magnetic resin layer contained in the inductors used in Defendant’s iPad 4 tablet computers contains a magnetic powder dispersed in a polymer resin.

5 ax 99 prowire photo in apple patent infringement case

Defendant has infringed and continues to infringe (literally and/or under the doctrine of equivalents) one or more claims of the patent-in-suit in this judicial district and elsewhere in the United States, by importing into the United States consumer electronics products that incorporate inductor devices made by a process patented in the United States, including, for example and without limitation, its line of iPad 4 tablet computers.

Claim 11 of the patent-in-suit states:

A method for making inductors with enhanced inductance comprising the steps of: (a) winding an electrically conducting coil about a magnetic core; (b) forming a magnetic resin layer by compression molding to embed at least a portion of an outer periphery of said electrically conducting coil; and (c) wherein said magnetic resin layer matrix contains a magnetic powder dispersed in a polymer resin.

The inductors used in Defendant’s consumer electronics products imported into the United States including, for example and without limitation, its line of iPad 4 tablet computers, were made using a method that practices each and every step of claim 11 of the patent-in-suit.

The inductors used in Defendant’s iPad 4 tablet computers have enhanced inductance.

The inductors used in Defendant’s iPad 4 tablet computers were made using a method that includes winding an electrically conducting coil about a magnetic core.

The inductors used in Defendant’s iPad 4 tablet computers were made using a method that includes forming a magnetic resin layer by compression molding to embed at least a portion of an outer periphery of said electrically conducting coil.

Defendant has been at no time, either expressly or impliedly, licensed under the patent-in-suit.

Defendant’s acts of infringement have caused damage to Prowire. Prowire is entitled to recover from Defendant the damages sustained by Prowire as a result of the wrongful acts of Defendant in an amount subject to proof at trial.

To the extent required by law, Prowire has complied with the provisions of 35 U.S.C. § 287.

Prowire reserves the right to amend to assert a claim of willful infringement if the evidence obtained in discovery supports such assertion.”

The patent infringement case presented in today’s report was filed in the Delaware District Court, Wilmington Office, New Castle on March 2, 2017. At present, no Judge has been assigned to the case. The patent in this lawsuit can be reviewed in full here

 

Related

Recent Posts

Rheinmetall Pierburg Pump Technology NanoLam DC-link capacitors for high-power electric vehicle traction inverter applications

Rheinmetall Funds NanoLam Capacitor Production Scale-Up

22.9.2026
1

Bourns Adds ACXX57SQ Air Coil Inductors for RF Design

18.9.2026
8
Frenetic planar ER transformer simulation for a 5 kW 800 V-to-50 V PSFB converter, showing low-profile core geometry and high-current planar winding arrangement

5 kW 800 V-to-50 V PSFB Transformer Design for Data Centers

18.9.2026
21

Samsung MLCC Revenue Seen Above KRW 8T by 2027, Murata EOL Actions Reshape Supply

11.9.2026
81
ECIA Industry Pulse Q3 2026 chart showing passive components, semiconductors and electro-mechanical component market sentiment and lead-time pressure

ECIA Industry Pulse Moderates as Passive Lead Times Tighten

10.9.2026
43

On-Chip 3D-Printed Copper Microinductors: A New Route to Compact RF Electronics

10.9.2026
33

Emerging Capacitor Markets in Fusion Energy

10.9.2026
59
Murata DLW32SH_MF 1210 surface-mount common mode choke coil with metal terminals for automotive CAN FD signal-line noise suppression

Murata Introduces Common Mode Chokes for Automotive CAN FD up to 150°C

10.9.2026
38
onsemi solid-state transformer concept for 800 V HVDC AI data center power conversion with SiC modules, DC-link capacitors and high-frequency magnetics

Solid-State Transformers for 800 V AI Data Centers: Passive Component Design Considerations

9.9.2026
140

Upcoming Events

Sep 29
16:00 - 17:00 CEST

Cybersecurity 2026

Sep 30
15:00 - 16:00 CEST

Positronic Space and Military Connectors

Oct 14
17:00 - 18:00 CEST

Live Demo! Discover KYOCERA AVX Antenna Integrator Studio (AIS)

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Capacitor Charging and Discharging

    0 shares
    Share 0 Tweet 0
  • Resistor Symbols

    0 shares
    Share 0 Tweet 0
  • MLCC and Ceramic Capacitors

    0 shares
    Share 0 Tweet 0
  • Audio Capacitors: Choosing Capacitors for Crossover Circuits

    0 shares
    Share 0 Tweet 0
  • Thermistors Basics, NTC and PTC Thermistors

    0 shares
    Share 0 Tweet 0
  • Ohm’s Law Answers Your Questions

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© 2015–2026
All rights reserved

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • Dossiers
  • PCNS

© 2015–2026
All rights reserved