Dujiang Wan

Person

Fremont, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic sensor array with different RA TMR film
- Patent number 11,598,828
- Issue date Mar 7, 2023
- Western Digital Technologies, Inc.
- Yuankai Zheng
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic sensor with dual TMR films and the method of making the same
- Patent number 11,493,573
- Issue date Nov 8, 2022
- Western Digital Technologies, Inc.
- Chih-Ching Hu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic sensor array with dual TMR film
- Patent number 11,385,305
- Issue date Jul 12, 2022
- Western Digital Technologies, Inc.
- Yuankai Zheng
- G01 - MEASURING TESTING
Information Patent Grant
Method for fabricating a magnetic recording device having a high as...
- Patent number 9,530,443
- Issue date Dec 27, 2016
- Western Digital (Fremont), LLC
- Li He
- G11 - INFORMATION STORAGE
Information Patent Grant
Wireless near field communication system
- Patent number 9,432,800
- Issue date Aug 30, 2016
- Ge Yi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Universal fall detection system
- Patent number 9,412,252
- Issue date Aug 9, 2016
- Ge Yi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Multi-purpose sensor
- Patent number 9,299,925
- Issue date Mar 29, 2016
- Ge Yi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Vehicle onboard safety system
- Patent number 9,278,696
- Issue date Mar 8, 2016
- Ge Yi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of making an ultra-sharp tip mode converter for a HAMR head
- Patent number 9,202,493
- Issue date Dec 1, 2015
- Western Digital (Fremont), LLC
- Dujiang Wan
- G11 - INFORMATION STORAGE
Information Patent Grant
Method to make interferometric taper waveguide for HAMR light delivery
- Patent number 9,183,854
- Issue date Nov 10, 2015
- Western Digital (Fremont), LLC
- Dujiang Wan
- G11 - INFORMATION STORAGE
Information Patent Grant
Fall detection method and system
- Patent number 9,153,114
- Issue date Oct 6, 2015
- Ge Yi
- G01 - MEASURING TESTING
Information Patent Grant
Systems and methods for using double mask techniques to achieve ver...
- Patent number 9,007,719
- Issue date Apr 14, 2015
- Western Digital (Fremont), LLC
- Hongping Yuan
- G11 - INFORMATION STORAGE
Information Patent Grant
Double exposure technique for high resolution disk imaging
- Patent number 8,993,217
- Issue date Mar 31, 2015
- Western Digital (Fremont), LLC
- Ling Wang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for CMP with large feature size variation
- Patent number 8,846,534
- Issue date Sep 30, 2014
- Western Digital (Fremont), LLC
- Yunfei Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for providing a perpendicular magnetic recording...
- Patent number 8,830,628
- Issue date Sep 9, 2014
- Western Digital (Fremont), LLC
- Hong Zhang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for providing an energy assisted magnetic recordi...
- Patent number 8,792,312
- Issue date Jul 29, 2014
- Western Digital (Fremont), LLC
- Lei Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
System and method for fabricating a magnetic recording pole
- Patent number 8,625,233
- Issue date Jan 7, 2014
- Western Digital (Fremont), LLC
- Lili Ji
Information Patent Grant
Method for providing an energy assisted magnetic recording (EAMR) head
- Patent number 8,607,439
- Issue date Dec 17, 2013
- Western Digital (Fremont), LLC
- Lei Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for providing a magnetic recording transducer usi...
- Patent number 8,506,828
- Issue date Aug 13, 2013
- Western Digital (Fremont), LLC
- Masahiro Osugi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of forming a dielectric slope for EAMR and magnetic writer
- Patent number 8,491,802
- Issue date Jul 23, 2013
- Western Digital (Fremont), LLC
- Wei Gao
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for fabricating a structure for a microelectric device
- Patent number 8,413,317
- Issue date Apr 9, 2013
- Western Digital (Fremont), LLC
- Dujiang Wan
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for providing a perpendicular magnetic recording...
- Patent number 8,404,128
- Issue date Mar 26, 2013
- Western Digital (Fremont), LLC
- Hong Zhang
- G11 - INFORMATION STORAGE
Information Patent Grant
Resist pattern protection technique for double patterning application
- Patent number 8,394,280
- Issue date Mar 12, 2013
- Western Digital (Fremont), LLC
- Dujiang Wan
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for fabricating a pole of a magnetic transducer
- Patent number 8,375,564
- Issue date Feb 19, 2013
- Western Digital (Fremont), LLC
- Guanghong Luo
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing an energy assisted magnetic recording head in...
- Patent number 8,322,022
- Issue date Dec 4, 2012
- Western Digital (Fremont), LLC
- Ge Yi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing a structure in a magnetic transducer
- Patent number 8,191,237
- Issue date Jun 5, 2012
- Western Digital (Fremont), LLC
- Guanghong Luo
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for providing optical proximity correction for st...
- Patent number 7,910,267
- Issue date Mar 22, 2011
- Western Digital (Fremont), LLC
- Xianzhong Zeng
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Magnetic Sensor with Dual TMR Films and the Method of Making the Same
- Publication number 20210063502
- Publication date Mar 4, 2021
- Western Digital Technologies, Inc.
- Chih-Ching HU
- G01 - MEASURING TESTING
Information Patent Application
Magnetic Sensor Array with Dual TMR Film
- Publication number 20210063504
- Publication date Mar 4, 2021
- Western Digital Technologies, Inc.
- Yuankai ZHENG
- G01 - MEASURING TESTING
Information Patent Application
Magnetic Sensor Array with Different RA TMR Film
- Publication number 20210063507
- Publication date Mar 4, 2021
- Western Digital Technologies, Inc.
- Yuankai ZHENG
- G01 - MEASURING TESTING
Information Patent Application
METHOD TO MAKE INTERFEROMETRIC TAPER WAVEGUIDE FOR HAMR LIGHT DELIVERY
- Publication number 20160099013
- Publication date Apr 7, 2016
- WESTERN DIGITAL (FREMONT), LLC
- DUJIANG WAN
- G11 - INFORMATION STORAGE
Information Patent Application
Vehicle Onboard Safety System
- Publication number 20150360696
- Publication date Dec 17, 2015
- Ge Yi
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD TO MAKE INTERFEROMETRIC TAPER WAVEGUIDE FOR HAMR LIGHT DELIVERY
- Publication number 20150243304
- Publication date Aug 27, 2015
- WESTERN DIGITAL (FREMONT), LLC
- DUJIANG WAN
- G11 - INFORMATION STORAGE
Information Patent Application
Fall Detection Method and System
- Publication number 20150228177
- Publication date Aug 13, 2015
- Ge Yi
- G08 - SIGNALLING
Information Patent Application
Universal Fall Detection System
- Publication number 20150206410
- Publication date Jul 23, 2015
- Ge Yi
- G08 - SIGNALLING
Information Patent Application
Multi-purpose Sensor
- Publication number 20150204647
- Publication date Jul 23, 2015
- Ge Yi
- G01 - MEASURING TESTING
Information Patent Application
Energy Harvesting System with Multiple Cells
- Publication number 20150188389
- Publication date Jul 2, 2015
- Dujiang Wan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Magnetoresistive random access memory cell design
- Publication number 20130307097
- Publication date Nov 21, 2013
- Ge Yi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR PROVIDING A SIDE SHIELD FOR A PERPENDICULAR M...
- Publication number 20120237878
- Publication date Sep 20, 2012
- WESTERN DIGITAL (FREMONT), LLC
- XIANZHONG ZENG
- G11 - INFORMATION STORAGE

Dujiang Wan

Person

Patents Grantslast 30 patents

Magnetic sensor array with different RA TMR film

Magnetic sensor with dual TMR films and the method of making the same

Magnetic sensor array with dual TMR film

Method for fabricating a magnetic recording device having a high as...

Wireless near field communication system

Universal fall detection system

Multi-purpose sensor

Vehicle onboard safety system

Method of making an ultra-sharp tip mode converter for a HAMR head

Method to make interferometric taper waveguide for HAMR light delivery

Fall detection method and system

Systems and methods for using double mask techniques to achieve ver...

Double exposure technique for high resolution disk imaging

Process for CMP with large feature size variation

Method and system for providing a perpendicular magnetic recording...

Method and system for providing an energy assisted magnetic recordi...

System and method for fabricating a magnetic recording pole

Method for providing an energy assisted magnetic recording (EAMR) head

Method and system for providing a magnetic recording transducer usi...

Method of forming a dielectric slope for EAMR and magnetic writer

Method for fabricating a structure for a microelectric device

Method and system for providing a perpendicular magnetic recording...

Resist pattern protection technique for double patterning application

Method for fabricating a pole of a magnetic transducer

Method for providing an energy assisted magnetic recording head in...

Method for providing a structure in a magnetic transducer

Method and system for providing optical proximity correction for st...

Patents Applicationslast 30 patents

Magnetic Sensor with Dual TMR Films and the Method of Making the Same

Magnetic Sensor Array with Dual TMR Film

Magnetic Sensor Array with Different RA TMR Film

METHOD TO MAKE INTERFEROMETRIC TAPER WAVEGUIDE FOR HAMR LIGHT DELIVERY

Vehicle Onboard Safety System

METHOD TO MAKE INTERFEROMETRIC TAPER WAVEGUIDE FOR HAMR LIGHT DELIVERY

Fall Detection Method and System

Universal Fall Detection System

Multi-purpose Sensor

Energy Harvesting System with Multiple Cells

Magnetoresistive random access memory cell design

METHOD AND SYSTEM FOR PROVIDING A SIDE SHIELD FOR A PERPENDICULAR M...