Patent Assignment
Reel/Frame 049056/0649
Assignment of Assignor's Interest
Recorded: 2019-05-01
Pages: 19
Assignor
IXYS, LLC
Executed: 2019-04-30
Assignee
LITTELFUSE, INC.
8755 WEST HIGGINS ROAD, SUITE 500, CHICAGO, ILLINOIS, 60631
Covered Properties
(174)
Semiconductor Device with Trenched Substrate and Method
Patent:
6,323,090 →
Application:
09/332,638 →
Non-Uniform Power Semiconductor and Method for Making
Method of Making Eleftrically Isolated Power Semiconductor Device
Cmos Compatible Band Gap Reference
Low Noise and Low Offset Bipolar Input Amplifiers
Active Power Filter for Isolating Electrically Noisy Load from Low Noise Power Supply
Differential Amplifier Having Active Load Device Scaling
Electrically Isolated Power Semiconductor Package
High Frequency Power Device with a Plastic Molded Package and Direct Bonded Substrate
Hot-Swap Protection Circuit
Power Device with a Plastic Molded Package and Direct Bonded Substrate
Electrically Isolated Power Device Package
Forward and Reverse Blocking Devices
Efficient Gate Driver for Power Device
Patent:
6,917,227 →
Application:
10/136,844 →
Gate Driver for Power Device
Patent:
6,832,356 →
Application:
10/136,850 →
Semiconductor Devices Having Group Iii-V Compound Layers
Rugged and Fast Power Mosfet and Igbt
Method for Manufacturing a Power Semiconductor Device and Direct Bonded Substrate Thereof
Ac Controller with Reverse Blocking Igbt
Patent:
6,771,056 →
Application:
10/284,018 →
Gate Driver with Level Shift Circuit
Patent:
6,759,692 →
Application:
10/349,804 →
Gate Driver with Level Shift Circuit and Method of Manufacturing Thereof
Patent:
6,638,808 →
Application:
10/353,722 →
Power Device Having Electrodes on a Top Surface Thereof
Double-Sided Cooling Isolated Packaged Power Semiconductor Device
Breakdown Voltage for Power Devices
Shallow Trench Power Mosfet and Igbt
Solar Cell Charger with Lens for Portable Applications
Patent:
9,012,764 →
Application:
10/682,384 →
Power Device with Bi-Directional Level Shift Circuit
Non-Uniform Power Semiconductor and Method for Making Non-Uniform Power Semiconductor
Over Charge Protection Device
Solar Cell Device Having a Charge Pump
Discrete and Integrated Photo Voltaic Solar Cells
Fast Switching Diode with Low Leakage Current
Passivation of Power Semiconductor Device
High Voltage Power Device with Low Diffusion Pipe Resistance
Rf Generator with Phase Controlled Mosfets
Rf Generator with Reduced Size and Weight
Rf Generator with Voltage Regulator
Heatsink for Power Devices
Rf Generator with Commutation Inductor
Switching Power Supply with Direct Conversion Off Ac Power Source
Method for Fabricating Forward and Reverse Blocking Devices
Integrated Packaged Having Magnetic Components
Rugged and Fast Power Mosfet and Igbt
Patent:
42,864 →
Application:
11/334,817 →
Semiconductor Power Device with Passivation Layers
Stable Diodes for Low and High Frequency Applications
Current Sensor Using Level Shift Circuit
Over Charge Protection Device
Signal Differentiation with Differential Conversion Circuit
Induction Heating Device Having Plural Resonant Circuits
Induction Heating Circuit and Winding Method for Heating Coils
Video and Content Controlled Backlight
System and Method for Conserving Power Applied to an Electrical Apparatus
Lead and Lead Frame for Power Package
Insulated Gate Bipolar Transistor
Solar Cell Device Having a Charge Pump
1-Wire Communication Protocol and Interface Circuit
Mother and Daughter Board Configuration to Improve Current and Voltage Capabilities of a Power Instrument
Electrically Isolated Power Semiconductor Package with Optimized Layout
Patent:
8,455,987 →
Application:
12/771,643 →
Methods and Apparatuses for Converting Carbon Dioxide and Treating Waste Material
Bias Current Control of Laser Diode Instrument to Reduce Power Consumption of the Instrument
Patent:
8,787,415 →
Application:
12/814,213 →
Vertical Power Mosfet and Igbt Fabrication Process with Two Fewer Photomasks
IGBT assembly having saturable inductor for soft landing a diode recovery current
Patent:
9,793,352 →
Application:
13/134,297 →
Transformer Drive For Low Conduction Loss Rectifier In Flyback Converter
Bipolar Junction Transistor for Current Driven Synchronous Rectifier
Low forward voltage rectifier
Power Device Manufacture on the Recessed Side of a Thinned Wafer
Power Transistor with Increased Avalanche Current and Energy Rating
Solderless Die Attach to a Direct Bonded Aluminum Substrate
Power Mosfet Having Selectively Silvered Pads for Clip and Bond Wire Attach
Patent:
8,586,480 →
Application:
13/563,703 →
Reflow of Thermoplastic Sheet for Passivation of Power Integrated Circuits
Patent:
8,575,767 →
Application:
13/646,697 →
Igbt Die Structure with Auxiliary P Well Terminal
Igbt Assembly Having Circuitry for Injecting/Extracting Current into/from an Auxiliary P Well
Patent:
8,686,513 →
Application:
13/662,395 →
Fast Recovery Switching Diode with Carrier Storage Area
Module and Assembly with Dual DC-Links for Three-Level NPC Applications
Electrically Isolated Power Semiconductor Package with Optimized Layout
Ultra-Fast Breakover Diode
Patent:
8,835,975 →
Application:
13/892,226 →
High Voltage Breakover Diode Having Comparable Forward Breakover and Reverse Breakdown Voltages
Packaged Overvoltage Protection Circuit for Triggering Thyristors
Low Forward Voltage Rectifier Using Capacitive Current Splitting
Video And Content Controlled Backlight
Full Bridge Rectifier Module
Power Device Cassette with Auxiliary Emitter Contact
Sintered Backside Shim in a Press Pack Cassette
Power MOSFET Having Selectively Silvered Pads for Clip and Bond Wire Attach
Forward Converter with Self-Driven Bjt Synchronous Rectifier
Buck Converter Having Self-Driven Bjt Synchronous Rectifier
Silver-To-Silver Bonded Ic Package Having Two Ceramic Substrates Exposed on the Outside of the Package
Low Forward Voltage Rectifier
Non-Isolated Ac-to-Dc Converter Having a Low Charging Current Initial Power Up Mode
Super Junction Field Effect Transistor
Patent:
9,082,845 →
Application:
14/231,516 →
Solderless Die Attach to a Direct Bonded Aluminum Substrate
Power Transistor with Increased Avalanche Current and Energy Rating
Vertical Power Mosfet and Igbt Fabrication Process with Two Fewer Photomasks
Bias Current Control of Laser Diode Instrument to Reduce Power Consumption of the Instrument
Lead and Lead Frame for Power Package
Module and Assembly with Dual Dc-Links for Three-Level Npc Applications
Ultra-Fast Breakover Diode
Synchronous Sensing of Inductor Current in a Buck Converter Control Circuit
Photovoltaic Cell And E-Ink Display On The Front Side Of A Cell Phone Case
Patent:
9,276,628 →
Application:
14/530,750 →
Super Junction Field Effect Transistor with Internal Floating Ring
Electrically Isolated Power Semiconductor Package with Optimized Layout
Ac Line Filter and Ac-to-Dc Rectifier Module
Silver-To-Silver Bonded Ic Package Having Two Ceramic Substrates Exposed on the Outside of the Package
Full Bridge Rectifier Module
Reverse Bipolar Junction Transistor Integrated Circuit
Non-Isolated AC-To-DC Converter With Fast Dep-FET Turn On And Turn Off
Efficient Inrush Current Control in Power Factor Corrected Ac-to-Dc Converter
Patent:
9,337,744 →
Application:
14/700,477 →
Low Forward Voltage Rectifier Using Capacitive Current Splitting
AC Line Filter And AC-To-DC Rectifier Module
Ultra-Fast Breakover Diode
Low Forward Voltage Rectifier
Programmable Temperature Compensated Voltage Generator
Patent:
9,331,707 →
Application:
14/810,998 →
IGBT With Waved Floating P-Well Electron Injection
Chopper Stabilized Amplifier with Synchronous Switched Capacitor Noise Filtering
Patent:
9,473,074 →
Application:
14/852,921 →
IGBT With Waved Floating P-Well Electron Injection
Power Device Cassette with Auxiliary Emitter Contact
Bridging Dmb Structure for Wire Bonding in a Power Semiconductor Device Module
Patent:
9,443,792 →
Application:
14/929,308 →
Buck Converter Having Self-Driven Bjt Synchronous Rectifier
Trench Igbt with Tub-Shaped Floating P-Well and Hole Drains to P-Body Regions
Patent:
9,419,118 →
Application:
14/931,426 →
Trench Separation Diffusion for High Voltage Device
Patent:
9,590,033 →
Application:
14/948,156 →
Forward Converter with Self-Driven BJT Synchronous Rectifier
Low Forward Voltage Rectifier
Multi-Stage LED Driver With Current Proportional To Rectified Input Voltage And Low Distortion
Patent:
9,544,961 →
Application:
14/978,783 →
Trench Igbt with Waved Floating P-Well Electron Injection
Die Stack Assembly Using An Edge Separation Structure For Connectivity Through A Die Of The Stack
Patent:
9,704,832 →
Application:
15/056,818 →
Programmable Temperature Compensated Voltage Generator
Direct Metal Bonding On Carbon-Covered Ceramic Contact Projections Of A Ceramic Carrier
Patent:
10,000,423 →
Application:
15/088,088 →
Gate Driver That Drives With A Sequence Of Gate Resistances
Power Semiconductor Device Module Having Mechanical Corner Press-Fit Anchors
High-Voltage Stacked Transistor Circuit
Patent:
9,595,950 →
Application:
15/169,526 →
Trench IGBT with Tub-Shaped Floating P-Well and Hole Drains to P-Body Regions
Bridging DMB Structure for Wire Bonding in a Power Semiconductor Module
Chopper Stabilized Amplifier With Synchronous Switched Capacitor Noise Filtering
Power Mosfet Having Improved Manufacturability, Low on-Resistance and High Breakdown Voltage
Patent:
9,837,529 →
Application:
15/284,488 →
Multi-Stage LED Driver With Current Proportional To Rectified Input Voltage And Low Distortion
Power Semiconductor Device Module Having Mechanical Corner Press-Fit Anchors
Power Semiconductor Device Module Baseplate Having Peripheral Heels
Patent:
9,929,066 →
Application:
15/378,011 →
Inverse Diode Stack
Patent:
9,941,256 →
Application:
15/387,582 →
Reverse Bipolar Junction Transistor Integrated Circuit
Super Junction Field Effect Transistor with Internal Floating Ring
High-Voltage Stacked Transistor Circuit
High-Speed MOSFET and IGBT Gate Driver
Trench Separation Diffusion for High Voltage Device
Power Device Cassette With Auxiliary Emitter Contact
AC Line Filter And AC-to-DC Rectifier Module
Heat Transfer Plate Having Small Cavities for Taking Up a Thermal Transfer Material
Compensation For Asymmetries In Electrodynamics Of BLDC Type Machines Using Hall Sensors
Die Stack Assembly Using an Edge Separation Structure for Connectivity Through a Die of the Stack
Fast Recovery Inverse Diode
Patent:
10,193,000 →
Application:
15/665,415 →
Gate Driver that Drives with a Sequence of Gate Resistances
Trench IGBT With Waved Floating P-Well Electron Injection
Charge Carrier Extraction Inverse Diode
Packaged Fast Inverse Diode Component For PFC Applications
Synchronous Sensing Of Inductor Current In A Buck Converter Control Circuit
Igbt Assembly Having Saturable Inductor for Soft Landing a Diode Recovery Current
Patent:
10,249,716 →
Application:
15/698,556 →
Self-Powered Electronic Fuse
Self-Powered Electronic Fuse With Storage Capacitor That Charges With Minimal Disturbance Of Load Current Through The Fuse
Power MOSFET Having Improved Manufacturability, Low On-Resistance and High Breakdown Voltage
Lead And Lead Frame For Power Package
Thin Profile Power Semiconductor Device Package Having Face-to-Face Mounted Dice and No Internal Bondwires
Packaged Overvoltage Protection Circuit For Triggering Thyristors
IGBT Die Structure With Auxiliary P Well Terminal
Multi-Stage LED Driver with Current Proportional to Rectified Input Voltage and Low Distortion
Current Correction Techniques for Accurate High Current Short Channel Driver
Patent:
10,219,339 →
Application:
15/899,352 →
Gate Driver For Switching Converter Having Body Diode Power Loss Minimization
Patent:
10,090,751 →
Application:
15/901,829 →
Embedded Field Plate Field Effect Transistor
Patent:
10,361,276 →
Application:
15/924,186 →
Power MOSFET Having Improved Manufacturability, Low On-Resistance and High Breakdown Voltage
Application:
16/035,566 →
Publication:
US 2018/0342608
Synchronous Sensing of Inductor Current in a Buck Converter Control Circuit
Optically Isolated Latching Solid State Relay with Low on Resistance and Linear Operation
Patent:
10,523,198 →
Application:
16/104,920 →
High-Speed MOSFET and IGBT Gate Driver
Gate Driver For Switching Converter Having Body Diode Power Loss Minimization
Discrete Power Transistor Package Having Solderless Dbc to Leadframe Attach
Fast Recovery Inverse Diode
Current Correction Techniques for Accurate High Current Short Channel Driver
Related Assignments
(22)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 2, 1999
From: ZOMMER, NATHAN
To: IXYS CORPORATION
Reel/Frame 010208/0991 →
Assignment of Assignor's Interest
Oct 15, 2001
From: OCHI, SAM S.
To: IXYS CORPORATION
Reel/Frame 012268/0375 →
Assignment of Assignor's Interest
Nov 13, 2001
From: CHOI, KANG RIM
To: IXYS CORPORATION
Reel/Frame 012329/0315 →
Assignment of Assignor's Interest
Jan 4, 2002
From: OCHI, SAM
To: IXYS CORPORATION
Reel/Frame 012440/0536 →
Assignment of Assignor's Interest
Jan 8, 2002
From: ZOMMER, NATHAN; TSUKANOV, VLADIMIR
To: IXYS CORPORATION
Reel/Frame 012464/0504 →
Assignment of Assignor's Interest
Jan 18, 2002
From: OCHI, SAM
To: IXYS CORPORATION
Reel/Frame 012531/0242 →
Assignment of Assignor's Interest
Jan 18, 2002
From: ZOMMER, NATHAN; TSUKANOV, VLADIMIR
To: IXYS CORPORATION
Reel/Frame 012529/0032 →
Assignment of Assignor's Interest
Feb 5, 2002
From: OCHI, SAM S.
To: IXYS CORPORATION
Reel/Frame 012614/0121 →
Assignment of Assignor's Interest
Feb 5, 2002
From: OCHI, SAM S.
To: IXYS CORPORATION
Reel/Frame 012615/0865 →
Assignment of Assignor's Interest
Mar 13, 2002
From: CHOI, KANG RIM
To: IXYS CORPORATION
Reel/Frame 012722/0620 →
Assignment of Assignor's Interest
May 6, 2002
From: OCHI, SAM SEIICHIRO
To: IXYS CORPORATION
Reel/Frame 012881/0218 →
Assignment of Assignor's Interest
Jun 10, 2002
From: KELBERLAU, ULRICH; INGRAM, PETER; ZOMMER, NATHAN
To: IXYS CORPORATION
Reel/Frame 012963/0722 →
Assignment of Assignor's Interest
Jun 19, 2002
From: CHOI, KANG RIM
To: IXYS CORPORATION
Reel/Frame 013023/0066 →
Assignment of Assignor's Interest
Aug 12, 2002
From: OCHI, SAM SEIICHIRO
To: IXYS CORPORATION
Reel/Frame 013168/0163 →
Assignment of Assignor's Interest
Aug 12, 2002
From: OCHI, SAM SEIICHIRO
To: IXYS CORPORATION
Reel/Frame 013168/0142 →
Assignment of Assignor's Interest
Sep 11, 2002
From: MOESSNER, STEFAN; WEYERS, MARKUS
To: IXYS CORPORATION
Reel/Frame 013262/0017 →
Assignment of Assignor's Interest
Sep 23, 2002
From: CHOI, KANG RIM
To: IXYS CORPORATION
Reel/Frame 013301/0570 →
Assignment of Assignor's Interest
Oct 29, 2002
From: STRAUCH, GERHARD
To: IXYS CORPORATION
Reel/Frame 013470/0382 →
Assignment of Assignor's Interest
Dec 9, 2002
From: TSUKANOV, VLADIMIR; ZOMMER, NATHAN
To: IXYS CORPORATION
Reel/Frame 013555/0727 →
Merger and Change of Name
Mar 31, 2018
From: IXYS CORPORATION; IXYS, LLC
To: IXYS, LLC
Reel/Frame 045406/0594 →
Merger and Change of Name
Mar 31, 2018
From: IXYS CORPORATION; IXYS, LLC
To: IXYS, LLC
Reel/Frame 045406/0588 →
Merger and Change of Name
Mar 31, 2018
From: IXYS CORPORATION; IXYS, LLC
To: IXYS, LLC
Reel/Frame 045406/0600 →