Sukumar Rajauria

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Managing laser diode cavity thermal transients in HAMR disk drives
- Patent number 12,170,435
- Issue date Dec 17, 2024
- Western Digital Technologies, Inc.
- Erhard Schreck
- G11 - INFORMATION STORAGE
Information Patent Grant
Touchdown detection and write-spacing setting in magnetic recording...
- Patent number 12,165,681
- Issue date Dec 10, 2024
- Western Digital Technologies, Inc.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Local extension of head overcoat with a near-field transducer exten...
- Patent number 12,159,654
- Issue date Dec 3, 2024
- Western Digital Technologies, Inc.
- Mehdi Habibollahzadeh
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device with laser write bias optimization using disk t...
- Patent number 12,159,653
- Issue date Dec 3, 2024
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Preheating laser diodes with reverse bias for HAMR disk drives
- Patent number 12,142,896
- Issue date Nov 12, 2024
- Western Digital Technologies, Inc.
- Erhard Schreck
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dark laser heating by positive pulse biasing in heat assisted magne...
- Patent number 12,125,509
- Issue date Oct 22, 2024
- Western Digital Technologies, Inc.
- John T. Contreras
- G11 - INFORMATION STORAGE
Information Patent Grant
Full disk serpentine write path for tamper-proof disk drive
- Patent number 11,934,687
- Issue date Mar 19, 2024
- Western Digital Technologies, Inc.
- Erhard Schreck
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Heat treatment of NFT and surrounding material
- Patent number 11,881,230
- Issue date Jan 23, 2024
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device with detection and mitigation of non-nominal he...
- Patent number 11,783,854
- Issue date Oct 10, 2023
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Data timestamp and read counter for magnetic recording devices
- Patent number 11,694,722
- Issue date Jul 4, 2023
- Western Digital Technologies, Inc.
- Shaomin Xiong
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device detecting NFT contamination by measuring therma...
- Patent number 11,430,482
- Issue date Aug 30, 2022
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device detecting write pole degradation for magnetic w...
- Patent number 11,423,939
- Issue date Aug 23, 2022
- Western Digital Technologies, Inc.
- Pierre-Olivier Jubert
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device predicting failure of near field transducer bas...
- Patent number 11,257,525
- Issue date Feb 22, 2022
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
In-situ NFT pre-treatment to accumulate optically transparent mater...
- Patent number 11,244,703
- Issue date Feb 8, 2022
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Heat treatment of NFT on heat-assisted magnetic recording device
- Patent number 11,170,814
- Issue date Nov 9, 2021
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
In-situ NFT pre-treatment to accumulate optically transparent mater...
- Patent number 10,950,266
- Issue date Mar 16, 2021
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
HAMR media to assist optically transparent build-up on NFT to impro...
- Patent number 10,950,267
- Issue date Mar 16, 2021
- Western Digital Technologies, Inc.
- Yuichi Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Heat-assisted magnetic recording device capable of providing negati...
- Patent number 10,910,007
- Issue date Feb 2, 2021
- Western Digital Technologies, Inc.
- Tan Trinh
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device measuring air bearing resonant frequency to cal...
- Patent number 10,783,913
- Issue date Sep 22, 2020
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device detecting abnormality with a write assist eleme...
- Patent number 10,699,736
- Issue date Jun 30, 2020
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk drive with write gap conductive structure and dual indepe...
- Patent number 10,650,850
- Issue date May 12, 2020
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for determining slider-disk contact in a magnetic...
- Patent number 10,395,678
- Issue date Aug 27, 2019
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Using window underlayer structures to protect near field transducer...
- Patent number 10,354,680
- Issue date Jul 16, 2019
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Electromagnetically-shielded near-field transducer thermal sensor f...
- Patent number 10,283,145
- Issue date May 7, 2019
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device employing multi-mode sensing circuitry for mult...
- Patent number 10,056,098
- Issue date Aug 21, 2018
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Using window underlayer structures to protect near field transducer...
- Patent number 9,947,346
- Issue date Apr 17, 2018
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
In-situ smear detection and mitigation in heat-assisted magnetic re...
- Patent number 9,601,140
- Issue date Mar 21, 2017
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Tunable contact detection sensitivity to directly measure clearance...
- Patent number 9,595,281
- Issue date Mar 14, 2017
- Western Digital Technologies, Inc.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Grant
Hard disk drive head-disk interface dithering
- Patent number 9,595,280
- Issue date Mar 14, 2017
- Western Digital Technologies, Inc.
- Sripathi V Canchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Monitoring and controlling the electrochemical wear at the head-dis...
- Patent number 9,460,739
- Issue date Oct 4, 2016
- HGST Netherlands B.V.
- Bruno Marchon
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
LOCAL EXTENSION OF HEAD OVERCOAT WITH A NEAR-FIELD TRANSDUCER EXTEN...
- Publication number 20240404551
- Publication date Dec 5, 2024
- Western Digital Technologies, Inc.
- Mehdi HABIBOLLAHZADEH
- G11 - INFORMATION STORAGE
Information Patent Application
NEAR-FIELD TRANSDUCER (NFT) DESIGNS FOR IMPROVED PERFORMANCE OF HEA...
- Publication number 20240404556
- Publication date Dec 5, 2024
- Western Digital Technologies, Inc.
- Sukumar RAJAURIA
- G11 - INFORMATION STORAGE
Information Patent Application
MANAGING LASER DIODE CAVITY THERMAL TRANSIENTS IN HAMR DISK DRIVES
- Publication number 20240332893
- Publication date Oct 3, 2024
- Western Digital Technologies, Inc.
- Erhard Schreck
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PREHEATING LASER DIODES WITH REVERSE BIAS FOR HAMR DISK DRIVES
- Publication number 20240170915
- Publication date May 23, 2024
- Western Digital Technologies, Inc.
- Erhard Schreck
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Full Disk Serpentine Write Path For Tamper-Proof Disk Drive
- Publication number 20230367506
- Publication date Nov 16, 2023
- Western Digital Technologies, Inc.
- Erhard SCHRECK
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HEAT-ASSISTED MAGNETIC RECORDING (HAMR) MEDIA WITH DUAL-LAYER MEDIA...
- Publication number 20230238023
- Publication date Jul 27, 2023
- Western Digital Technologies, Inc.
- Tan Duy Trinh
- G11 - INFORMATION STORAGE
Information Patent Application
DATA STORAGE DEVICE DETECTING WRITE POLE DEGRADATION FOR MAGNETIC W...
- Publication number 20220262401
- Publication date Aug 18, 2022
- Western Digital Technologies, Inc.
- PIERRE-OLIVIER JUBERT
- G11 - INFORMATION STORAGE
Information Patent Application
Heat Treatment Of NFT And Surrounding Material
- Publication number 20220005506
- Publication date Jan 6, 2022
- Western Digital Technologies, Inc.
- Sukumar RAJAURIA
- G11 - INFORMATION STORAGE
Information Patent Application
In-Situ NFT Pre-Treatment To Accumulate Optically Transparent Mater...
- Publication number 20210272595
- Publication date Sep 2, 2021
- Western Digital Technologies, Inc.
- Sukumar RAJAURIA
- G11 - INFORMATION STORAGE
Information Patent Application
ELECTROMAGNETICALLY-SHIELDED NEAR-FIELD TRANSDUCER THERMAL SENSOR F...
- Publication number 20190066725
- Publication date Feb 28, 2019
- Western Digital Technologies, Inc.
- Sukumar RAJAURIA
- G11 - INFORMATION STORAGE
Information Patent Application
USING WINDOW UNDERLAYER STRUCTURES TO PROTECT NEAR FIELD TRANSDUCER...
- Publication number 20180197568
- Publication date Jul 12, 2018
- Western Digital Technologies, Inc.
- Sukumar RAJAURIA
- G11 - INFORMATION STORAGE
Information Patent Application
USING WINDOW UNDERLAYER STRUCTURES TO PROTECT NEAR FIELD TRANSDUCER...
- Publication number 20170287511
- Publication date Oct 5, 2017
- HGST NETHERLANDS B.V.
- Sukumar Rajauria
- G11 - INFORMATION STORAGE
Information Patent Application
TUNABLE CONTACT DETECTION SENSITIVITY TO DIRECTLY MEASURE CLEARANCE...
- Publication number 20170047089
- Publication date Feb 16, 2017
- HGST NETHERLANDS B.V.
- Sukumar RAJAURIA
- G11 - INFORMATION STORAGE
Information Patent Application
IMPLEMENTING ENHANCED IN-SITU MONITORING OF HEAD OVERCOAT WEAR FOR...
- Publication number 20170004853
- Publication date Jan 5, 2017
- HGST NETHERLANDS B.V.
- Sripathi Vangipuram Canchi
- G11 - INFORMATION STORAGE
Information Patent Application
Hard Disk Drive Head-Disk Interface Dithering
- Publication number 20160254016
- Publication date Sep 1, 2016
- HGST NETHERLANDS B.V.
- Sripathi V. Canchi
- G11 - INFORMATION STORAGE

Sukumar Rajauria

Person

Patents Grantslast 30 patents

Managing laser diode cavity thermal transients in HAMR disk drives

Touchdown detection and write-spacing setting in magnetic recording...

Local extension of head overcoat with a near-field transducer exten...

Data storage device with laser write bias optimization using disk t...

Preheating laser diodes with reverse bias for HAMR disk drives

Dark laser heating by positive pulse biasing in heat assisted magne...

Full disk serpentine write path for tamper-proof disk drive

Heat treatment of NFT and surrounding material

Data storage device with detection and mitigation of non-nominal he...

Data timestamp and read counter for magnetic recording devices

Data storage device detecting NFT contamination by measuring therma...

Data storage device detecting write pole degradation for magnetic w...

Data storage device predicting failure of near field transducer bas...

In-situ NFT pre-treatment to accumulate optically transparent mater...

Heat treatment of NFT on heat-assisted magnetic recording device

In-situ NFT pre-treatment to accumulate optically transparent mater...

HAMR media to assist optically transparent build-up on NFT to impro...

Heat-assisted magnetic recording device capable of providing negati...

Data storage device measuring air bearing resonant frequency to cal...

Data storage device detecting abnormality with a write assist eleme...

Hard disk drive with write gap conductive structure and dual indepe...

Method and system for determining slider-disk contact in a magnetic...

Using window underlayer structures to protect near field transducer...

Electromagnetically-shielded near-field transducer thermal sensor f...

Data storage device employing multi-mode sensing circuitry for mult...

Using window underlayer structures to protect near field transducer...

In-situ smear detection and mitigation in heat-assisted magnetic re...

Tunable contact detection sensitivity to directly measure clearance...

Hard disk drive head-disk interface dithering

Monitoring and controlling the electrochemical wear at the head-dis...

Patents Applicationslast 30 patents

LOCAL EXTENSION OF HEAD OVERCOAT WITH A NEAR-FIELD TRANSDUCER EXTEN...

NEAR-FIELD TRANSDUCER (NFT) DESIGNS FOR IMPROVED PERFORMANCE OF HEA...

MANAGING LASER DIODE CAVITY THERMAL TRANSIENTS IN HAMR DISK DRIVES

PREHEATING LASER DIODES WITH REVERSE BIAS FOR HAMR DISK DRIVES

Full Disk Serpentine Write Path For Tamper-Proof Disk Drive

HEAT-ASSISTED MAGNETIC RECORDING (HAMR) MEDIA WITH DUAL-LAYER MEDIA...

DATA STORAGE DEVICE DETECTING WRITE POLE DEGRADATION FOR MAGNETIC W...

Heat Treatment Of NFT And Surrounding Material

In-Situ NFT Pre-Treatment To Accumulate Optically Transparent Mater...

ELECTROMAGNETICALLY-SHIELDED NEAR-FIELD TRANSDUCER THERMAL SENSOR F...

USING WINDOW UNDERLAYER STRUCTURES TO PROTECT NEAR FIELD TRANSDUCER...

USING WINDOW UNDERLAYER STRUCTURES TO PROTECT NEAR FIELD TRANSDUCER...

TUNABLE CONTACT DETECTION SENSITIVITY TO DIRECTLY MEASURE CLEARANCE...

IMPLEMENTING ENHANCED IN-SITU MONITORING OF HEAD OVERCOAT WEAR FOR...

Hard Disk Drive Head-Disk Interface Dithering