WESTERN DIGITAL TECHNOLOGIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology MATTERS Rank in Class
 
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 4071 1
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1002 79
 
 
G11C STATIC STORES 221 42
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 134 232
 
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 102 40
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 85 200
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 74 84
 
 
B44C PRODUCING DECORATIVE EFFECTS 60 5
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 56 104
 
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 41 60
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Top Patents (by citation)

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0067,890 EMBEDDING PROTOCOL PARAMETERS IN DATA STREAMS BETWEEN HOST DEVICES AND STORAGE DEVICES Sep 06, 16 Mar 08, 18 [G06F]
2018/0061,492 WRITE BANDWIDTH ENHANCEMENT SCHEME IN PHASE CHANGE MEMORY Aug 25, 16 Mar 01, 18 [G11C]
2018/0061,887 MAGNETORESISTIVE RANDOM ACCESS MEMORY (MRAM) WITH AN INTERCONNECT THAT GENERATES A SPIN CURRENT AND A MAGNETIC FIELD EFFECT Aug 25, 16 Mar 01, 18 [G11C, H01L]
2018/0032,261 Efficient Data Management Through Compressed Data Interfaces Jun 13, 17 Feb 01, 18 [G06F]
2018/0024,751 METADATA MANAGEMENT ON A STORAGE DEVICE Jul 19, 16 Jan 25, 18 [G06F]
2018/0024,759 Indirection-Based Storage System Backups May 05, 17 Jan 25, 18 [G06F]
2018/0024,767 Reference Set Construction for Data Deduplication May 24, 17 Jan 25, 18 [G06F]
2018/0025,046 Reference Set Construction for Data Deduplication May 24, 17 Jan 25, 18 [G06F]
2018/0018,259 APPARATUS AND METHOD FOR LOW POWER LOW LATENCY HIGH CAPACITY STORAGE CLASS MEMORY Sep 26, 17 Jan 18, 18 [G11C, G06F]
2018/0004,264 INTEGRATED CIRCUIT POWER DISTRIBUTION WITH THRESHOLD SWITCHES Jun 29, 16 Jan 04, 18 [G11C, G06F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9921767 Enhanced low overhead data protection in data storage drives Dec 09, 16 Mar 20, 18 [G11B, G06F, H03M]
9921969 Generation of random address mapping in non-volatile memories using local and global interleaving Dec 11, 15 Mar 20, 18 [G06F]
9922676 Data storage device gradually decreasing laser power after write operation Jun 07, 17 Mar 20, 18 [G11B]
9922727 Protection against state transition errors in solid-state data storage systems Mar 22, 17 Mar 20, 18 [G11C, G06F]
9923562 Data storage device state detection on power loss Jun 16, 16 Mar 20, 18 [G06F, H03K]
9916616 Inventory management system using incremental capacity formats Jul 23, 14 Mar 13, 18 [G06Q]
9916872 Double-barrier vacuum seal for sealed data storage system Dec 20, 16 Mar 13, 18 [G11B]
9908167 Disk drive tolerance ring with edge rounding from opposite major faces Mar 02, 15 Mar 06, 18 [B21D, G11B, F16D]
9910075 Overvoltage detection circuit for detecting an overvoltage spike from an external power supply Apr 11, 16 Mar 06, 18 [G01R, G11B, G11C]
9911011 Communications device that logically connects an upstream signal line to a downstream signal line Nov 19, 14 Mar 06, 18 [G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2018/0012,627 MANAGING FAR AND NEAR TRACK ERASURE BY DYNAMIC CONTROL OF A WRITE CURRENT PARAMETER OF A MAGNETIC DISK DRIVE Abandoned Jul 07, 16 Jan 11, 18 [G11B]
2017/0344,425 ERROR-LADEN DATA HANDLING ON A STORAGE DEVICE Abandoned May 26, 16 Nov 30, 17 [G11C, G06F]
2017/0219,337 CONDENSATION-ASSISTED METROLOGY Abandoned Jan 28, 16 Aug 03, 17 [G01B]
2017/0221,511 REDUCING CARBONACEOUS SMEAR AT THE NFT AREA ON HAMR HEAD Abandoned Aug 10, 16 Aug 03, 17 [G11B]
2017/0213,572 DETECTION OF READ-WRITE HEAD TOUCHDOWN USING HEAD ACTUATOR Abandoned May 25, 16 Jul 27, 17 [G11B]
2017/0160,771 ENHANCED FAN CONTROL IN DATA STORAGE ENCLOSURES Abandoned Dec 03, 15 Jun 08, 17 [G06F]
2017/0153,842 DATA ALLOCATION IN HARD DRIVES Abandoned Dec 01, 15 Jun 01, 17 [G11B, G06F]
2017/0141,878 SYSTEMS AND METHODS FOR SENDING DATA FROM NON-VOLATILE SOLID STATE DEVICES BEFORE ERROR CORRECTION Abandoned Nov 16, 15 May 18, 17 [H04L, H03M]
2017/0125,067 GAS LEAK DETECTION IN DATA STORAGE DEVICE Abandoned Oct 28, 15 May 04, 17 [G11B, G01N]
2017/0117,027 TOP PINNED SOT-MRAM ARCHITECTURE WITH IN-STACK SELECTOR Abandoned Oct 21, 15 Apr 27, 17 [G11C, H01L]
2017/0097,877 VARIED STORAGE MEDIA DENSITY FOR DATA STORAGE DEVICES IN VIBRATIONAL ENVIRONMENTS Abandoned Oct 05, 15 Apr 06, 17 [G06F]
2017/0092,303 SCISSOR TYPE MAGNETIC SENSOR HAVING AN IN-STACK LONGITUDINAL STABILIZATION STRUCTURE Abandoned Sep 30, 15 Mar 30, 17 [G11B]
2017/0092,310 DATA STORAGE DEVICE CONCURRENTLY CONTROLLING AND SENSING A SECONDARY ACTUATOR FOR ACTUATING A HEAD OVER A DISK Abandoned Aug 24, 16 Mar 30, 17 [G11B]
2017/0092,576 CONTACTING NANO-IMPRINTED CROSS-POINT ARRAYS TO A SUBSTRATE Abandoned Sep 29, 15 Mar 30, 17 [H01L]
2017/0062,018 Control Of Vortex Shedding Associated With A Hard Disk Drive Damper Plate Abandoned Aug 27, 15 Mar 02, 17 [G11B]
2017/0053,678 ADHESIVE COVER SEAL FOR HERMETICALLY-SEALED DATA STORAGE DEVICE Abandoned May 31, 16 Feb 23, 17 [G11B]
2017/0047,088 NEAR-FIELD TRANSDUCER FOR HEAT ASSISTED MAGNETIC RECORDING WITH TRAILING EDGE TAPER AND SIDE TAPER Abandoned Aug 13, 15 Feb 16, 17 [G11B]
2017/0017,405 SYSTEMS AND METHODS FOR IMPROVING FLASH-ORIENTED FILE SYSTEM GARBAGE COLLECTION Abandoned Jul 14, 15 Jan 19, 17 [G06F]
2017/0018,285 BARIUM HEXA-FERRITE TECHNOLOGY FOR MAMR AND ADVANCED MAGNETIC RECORDING APPLICATIONS Abandoned Jul 14, 15 Jan 19, 17 [G11B]
2017/0011,778 Solvent-Based Mitigating Of Organic Contaminants In A Hard Disk Drive Abandoned Jul 08, 15 Jan 12, 17 [B08B, G11B, C11D]

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