Patent Assignment
Reel/Frame 014926/0935
Assignment of Assignor's Interest
Recorded: 2004-01-26
Pages: 37
Assignor
READ-RITE CORPORATION
Executed: 2003-07-31
Assignee
WESTERN DIGITAL (FREMONT), INC.
44100 OSGOOD ROAD, FREMONT, CALIFORNIA, 94539
Covered Properties
(72)
High Resolution Hall Effect Read Head
Patent:
4,371,905 →
Application:
06/206,461 →
Automatic Throat Height Control for Film Heads
Patent:
4,511,942 →
Application:
06/375,714 →
De-Staking Tool and Method for Removal of Head Gimbals from Head Stack Assemblies
Patent:
4,897,001 →
Application:
07/160,147 →
Disk Head Assembly Flexure with Sloped Ramp Support Structure
Patent:
5,008,768 →
Application:
07/328,869 →
Disk Head Assembly Load Beam
Patent:
5,027,240 →
Application:
07/328,874 →
Method for Fabricating Magnetic Head Air Bearing Sliders
Patent:
5,156,704 →
Application:
07/531,941 →
Disk Head Assembly Flexure with Improved Motion Stability
Patent:
5,138,507 →
Application:
07/572,059 →
Disk Head Assembly Attachment Means and Method
Patent:
5,187,626 →
Application:
07/689,132 →
Compact, High-Speed, Rotary Actuator and Transducer Assembly with Reduced Moment of Inertia and Mass-Balanced Structural Overlap with Drive Motor and Organizing Method for the Same
Patent:
5,396,388 →
Application:
07/843,895 →
Magnetic Head Assembly with Mr Sensor
Patent:
5,446,613 →
Application:
08/203,225 →
Method and Apparatus for Compensating for Process Variations in an Automatic Positioning System
Patent:
5,504,999 →
Application:
08/217,550 →
Integrated Yoke Magnetoresistive Transducer with Magnetic Shunt
Patent:
5,436,779 →
Application:
08/220,486 →
Method of Assembling a Head Arm Stack for a Magnetic Disk Drive
Patent:
5,465,477 →
Application:
08/231,402 →
Magnetoresistive Structure with Contiguous Junction Hard Bias Design with Low Lead Resistance
Patent:
5,438,470 →
Application:
08/242,457 →
Method and Apparatus for Blending Air Bearing Sliders
Patent:
5,516,323 →
Application:
08/260,029 →
Method and Apparatus for Calibration of a Transducer Flying Height Measurement Instrument
Patent:
5,567,864 →
Application:
08/263,999 →
Thin Film Magnetic Heads with Multiple Yokes
Patent:
5,452,168 →
Application:
08/280,577 →
System for Testing the Voice Coil Element of a Disk Drive Rotary Actuator
Patent:
5,438,273 →
Application:
08/299,524 →
Multilayer Hard Bias Films for Longitudinal Biasing in Magnetoresistive Transducer
Patent:
5,434,826 →
Application:
08/312,537 →
Dual Element Magnetoresistive Sensing Head Having in-Gap Flux Guide and Flux Closure Piece with Particular Connection of Magnetoresistive Sensing Element to Differential Amplifier
Patent:
5,508,868 →
Application:
08/364,387 →
Tripad Air Bearing Magnetic Head Slider
Patent:
5,473,485 →
Application:
08/383,978 →
Air Bearing Thin Film Magnetic Head with a Wear-Resistant End Cap Having Alternating Lamination
Patent:
5,473,486 →
Application:
08/384,467 →
Method of Making a Bi-Level Coil for a Thin Film Magnetic Transducer
Patent:
5,472,736 →
Application:
08/407,270 →
Contact Recording Slider with Active Contact Surfaces
Patent:
5,612,839 →
Application:
08/619,279 →
Head Suspension Having Reduced Torsional Vibration
Patent:
6,307,715 →
Application:
08/705,798 →
Thin-Film Magnetic Head with Improved Bonding Characteristics and Peeling Resistance of Insulating Film to Substrate
Patent:
5,764,454 →
Application:
08/774,972 →
Transmissive Optical and Magneto-Optical Data Storage Media
Patent:
5,742,581 →
Application:
08/779,394 →
Optical and Magneto-Optic Data Storage Systems Utilizing Transmissive Media
Patent:
5,966,363 →
Application:
08/779,461 →
Stationary Optical Data Storage System Using Holographic or Acousto-Optical Deflection
Patent:
5,740,148 →
Application:
08/779,463 →
Flying Magneto-Optical Head with a Steerable Mirror
Patent:
6,058,094 →
Application:
08/797,755 →
Offset Optics for Use with Optical Heads
Patent:
6,178,150 →
Application:
08/798,912 →
Oxide Film Fabrication Method and Electronic Device
Patent:
6,033,532 →
Application:
08/807,175 →
Coil for Use with Magneto-Optical Head
Patent:
5,903,525 →
Application:
08/844,167 →
Magnetic Thin Film and Magnetic Thin Film Manufacturing Method
Patent:
5,935,403 →
Application:
08/881,300 →
Method and Tool for Handling Micro-Mechanical Structures
Patent:
5,966,591 →
Application:
08/908,648 →
Methods and Systems for Providing Human/Computer Interfaces
Patent:
6,076,734 →
Application:
08/948,891 →
Electro-Magnetic Coil Assembly for Attachment to a Slider
Patent:
5,978,319 →
Application:
08/965,340 →
Inductive/Mr Composite Type Thin-Film Magnetic Head with Nlts Reduction
Patent:
6,266,216 →
Application:
08/965,811 →
Interposer with Embedded Circuitry and Method for Using the Same to Package Microelectronic Units
Patent:
5,973,391 →
Application:
08/989,326 →
Composite Type Thin-Film Magnetic Head with Improved Recording Characteristics and High Resolution
Patent:
6,025,978 →
Application:
08/994,330 →
Transmissive Data Storage Media and an Optical Head Using Holographic or Acoutso-Optical Deflection
Patent:
5,894,465 →
Application:
09/003,069 →
Slider and Electro-Magnetic Coil Assembly
Patent:
6,130,863 →
Application:
09/005,913 →
Read/Write Head and Method for Magnetic Reading and Magneto-Optical Writing on a Data Storage Medium
Patent:
5,986,978 →
Application:
09/005,914 →
Thin-Film Electr- Magnetic Coil Design for Use in a Flying Magneto- Optical Head
Patent:
5,886,959 →
Application:
09/019,225 →
Transmissive Optical and Magneto-Optical Data Storage Media and Method of Making the Same
Patent:
5,968,626 →
Application:
09/024,963 →
Inductive/Mr Composite Type Thin-Film Magnetic Head
Patent:
5,969,911 →
Application:
09/035,778 →
Base Plate Suspension Assembly in a Hard Disk Drive with Step in Flange
Patent:
6,046,885 →
Application:
09/055,220 →
Composite Type Thin-Film Magnetic Head
Patent:
6,125,018 →
Application:
09/094,446 →
Structure for Micro-Machine Optical Tooling and Method for Making and Using
Patent:
6,049,650 →
Application:
09/107,221 →
Near Field Magneto-Optical Head Made Using Wafer Processing Techniques
Patent:
6,130,779 →
Application:
09/111,098 →
Composite Slider Design
Patent:
6,075,673 →
Application:
09/112,174 →
Composite Slider with Housing and Interlocked Body
Patent:
6,097,575 →
Application:
09/115,403 →
High Numerical Aperture Optical Focusing Device for Use in Data Storage Systems
Patent:
6,229,782 →
Application:
09/179,278 →
High Numerical Aperture Optical Focusing Device Having a Conical Incident Facet and a Parabolic Reflector for Use in Data Storage Systems
Patent:
6,377,535 →
Application:
09/179,279 →
Magneto-Optical Data Storage System Having an Optical-Processing Flying Head
Patent:
6,081,499 →
Application:
09/191,835 →
Conbti as a High Resistivity Sal Material for High-Density Mr
Patent:
6,452,765 →
Application:
09/195,475 →
Wafer Processing Techniques for Near Field Magneto-Optical Head
Patent:
6,094,803 →
Application:
09/234,615 →
High Na Catadioptric Focusing Device Having Flat Diffractive Surfaces
Patent:
5,986,995 →
Application:
09/234,620 →
High Na Solid Catadioptric Focusing Device Having a Flat Kinoform Phase Profile
Patent:
6,212,153 →
Application:
09/235,129 →
Read/Write Head with Shifted Waveguide
Patent:
6,016,290 →
Application:
09/248,766 →
Insulator Layers for Magnetoresistive Tranducers
Patent:
6,532,823 →
Application:
09/272,648 →
High Numerical Aperture Optical Focusing Device for Use in Data Storage Systems
Patent:
6,185,051 →
Application:
09/338,785 →
High Numerical Aperture Optical Focusing Device for Use in Data Storage Systems
Patent:
6,181,485 →
Application:
09/338,888 →
Slider Design
Patent:
6,181,673 →
Application:
09/344,159 →
Method and Tool for Handling Micro-Mechanical Structures
Patent:
6,255,721 →
Application:
09/353,213 →
Laser Mounting for a Thermally Assisted Gmr Head
Patent:
6,404,706 →
Application:
09/429,553 →
Spin-Valve Magnetoresistance Sensor and Thin Film Magnetic Head
Patent:
6,340,533 →
Application:
09/443,953 →
Method for Formation of Upper Magnetic Pole Layer of Thin Film Magnetic Head, Method of Forming Miniature Block Pattern with High Aspect Ratio on Bottom Part of Step on Surface with Step, and Thin Film Magnetic Head
Patent:
6,451,514 →
Application:
09/449,179 →
Magnetic Resistance Effect Type Thin-Film Magnetic Head and Method for Manufacturing the Same
Patent:
6,535,363 →
Application:
09/482,784 →
Spin-valve magnetic resistance sensor and thin-film magnetic head
Patent:
6,322,911 →
Application:
09/495,822 →
Magnetic Head Shield Pole with Nonmagnetic Separation Film Between Transition Portion and Shield Portion
Patent:
6,430,009 →
Application:
09/543,059 →
Thin Film Magnetic Head Including Nonmagnetic and Magnetic Layers with Similar Milling Rates
Related Assignments
(13)
Other recorded transfers of the patents in this record — the chain of ownership.
Release of Security Interest
Sep 3, 1996
From: WOLFENSOHN ASSOCIATES, L.P.
To: CENSTOR CORP.
Reel/Frame 008121/0398 →
Release of Security Interest
Sep 3, 1996
From: MORGENTHALER VENTURE PARTNERS; MORGENTHALER VENTURE PARTNERS II
To: CENSTOR CORP.
Reel/Frame 008117/0683 →
Release of Security Interest
Sep 3, 1996
From: MMC/GATX PARTNERSHIP NO,1; TL PARTNERS; COMDISCO, INC.
To: CENSTOR CORP.
Reel/Frame 008117/0904 →
Release of Security Interest
Sep 3, 1996
From: SILICON VALLEY BANK OF SANTA CLARA, CALIFORNIA
To: CENSTOR CORP.
Reel/Frame 008118/0371 →
Release of Security Interest
Sep 3, 1996
From: BRENTWOOD ASSOCIATES II LIQUIDATING TRUST; BRENTWOOD ASSOCIATES III LIQUIDATING TRUST; BRENTWOOD ASSOCIATES IV LIQUIDATING TRUST; EVERGREEN II, L.P.
To: CENSTOR CORP.
Reel/Frame 008120/0326 →
Assignment of Assignor's Interest
Sep 15, 2003
From: READ-RITE CORPORATION
To: WESTERN DIGITAL (FREMONT), INC.
Reel/Frame 014506/0765 →
Release of Security Interest
Sep 25, 2003
From: TENNENBAUM CAPITAL PARTNERS, LLC
To: READ-RITE CORPORATION
Reel/Frame 014499/0476 →
Security Interest
Jun 21, 2004
From: WESTERN DIGITAL TECHNOLOGIES, INC.; WESTERN DIGITAL (FREMONT), INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Reel/Frame 014830/0957 →
Release of Security Interests in Patent Rights
Dec 22, 2005
From: JPMORGAN CHASE BANK, N.A. (FORMERLY KNOWN AS THE CHASE MANHATTAN BANK AND JPMORGAN CHASE BANK), AS ADMINISTRATIVE AGENT
To: SEAGATE TECHNOLOGY LLC
Reel/Frame 016926/0821 →
Release of Security Interest
Mar 5, 2008
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
To: WESTERN DIGITAL TECHNOLOGIES, INC.; WESTERN DIGITAL (FREMONT), INC.
Reel/Frame 020599/0489 →
Change of Name
Sep 19, 2018
From: WESTERN DIGITAL (FREMONT), INC
To: WESTERN DIGITAL (FREMONT), LLC
Reel/Frame 046911/0840 →
Assignment of Assignor's Interest
Sep 19, 2019
From: WESTERN DIGITAL (FREMONT), LLC
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 050450/0582 →
Release of Security Interest
Jul 23, 2025
From: THE BANK OF NOVA SCOTIA
To: SEAGATE TECHNOLOGY PUBLIC LIMITED COMPANY; SEAGATE TECHNOLOGY; SEAGATE TECHNOLOGY HDD HOLDINGS; I365 INC.
Reel/Frame 072193/0001 →