Donghong Li

Person

Pleasanton, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Writer having a recessed trailing shield and nonmagnetic refill
- Patent number 9,934,794
- Issue date Apr 3, 2018
- Western Digital (Fremont), LLC
- Ran Lin
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of forming a fully wrapped-around shielded PMR writer pole
- Patent number 9,520,146
- Issue date Dec 13, 2016
- Western Digital (Fremont), LLC
- Jinwen Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for fabricating a magnetic write pole having a leading edge...
- Patent number 9,508,363
- Issue date Nov 29, 2016
- Western Digital (Fremont), LLC
- Mingjun Yu
- G11 - INFORMATION STORAGE
Information Patent Grant
Methods for manufacturing electronic lapping guides for writer head...
- Patent number 9,082,426
- Issue date Jul 14, 2015
- Western Digital (Fremont), LLC
- Yan Chen
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic writer having a partially shunted coil
- Patent number 9,042,052
- Issue date May 26, 2015
- Western Digital (Fremont), LLC
- El-Amine Salhi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for fabricating side shields in a magnetic writer
- Patent number 9,001,467
- Issue date Apr 7, 2015
- Western Digital (Fremont), LLC
- Xianzhong Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing a side shield for a magnetic recording transducer
- Patent number 8,982,508
- Issue date Mar 17, 2015
- Western Digital (Fremont), LLC
- Yan Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing a monolithic shield for a magnetic recording t...
- Patent number 8,914,969
- Issue date Dec 23, 2014
- Western Digital (Fremont), LLC
- Xiaotian Zhou
- G11 - INFORMATION STORAGE
Information Patent Grant
Shield designed for middle shields in a multiple sensor array
- Patent number 8,908,333
- Issue date Dec 9, 2014
- Western Digital (Fremont), LLC
- Steven C. Rudy
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing a piezoelectric multilayer
- Patent number 8,813,324
- Issue date Aug 26, 2014
- Western Digital (Fremont), LLC
- Nathan C. Emley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of forming a fully wrapped-around shielded PMR writer pole
- Patent number 8,533,937
- Issue date Sep 17, 2013
- Western Digital (Fremont), LLC
- Jinwen Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing a side shield for a magnetic recording transducer
- Patent number 8,419,954
- Issue date Apr 16, 2013
- Western Digital (Fremont), LLC
- Yan Chen
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording head
- Patent number 8,284,517
- Issue date Oct 9, 2012
- Western Digital (Fremont), LLC
- Hai Sun
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for providing a perpendicular magnetic recording (PMR) trans...
- Patent number 8,166,632
- Issue date May 1, 2012
- Western Digital (Fremont), LLC
- Jinqiu Zhang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for providing a perpendicular magnetic recording...
- Patent number 8,136,224
- Issue date Mar 20, 2012
- Western Digital (Fremont), LLC
- Hai Sun
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of measuring a bevel angle in a write head
- Patent number 8,074,345
- Issue date Dec 13, 2011
- Western Digital (Fremont), LLC
- Alexandre Anguelouch
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing a magnetic write head mold for neck height...
- Patent number 7,975,366
- Issue date Jul 12, 2011
- Headway Technologies, Inc.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of forming a pole tip region in a main pole layer of a perpe...
- Patent number 7,950,138
- Issue date May 31, 2011
- Headway Technologies, Inc.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Pole width control on plated bevel main pole design of a perpendicu...
- Patent number 7,672,079
- Issue date Mar 2, 2010
- Headway Technologies, Inc.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Using bilayer lithography process to define neck height for PMR
- Patent number 7,394,621
- Issue date Jul 1, 2008
- Headway Technologies, Inc.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Grant
Method to form a cavity having inner walls of varying slope
- Patent number 7,313,863
- Issue date Jan 1, 2008
- Headway Technologies, Inc.
- Donghong Li
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR FABRICATING A MAGNETIC SHIELD AT REDUCED COST AND WITH E...
- Publication number 20150248899
- Publication date Sep 3, 2015
- WESTERN DIGITAL (FREMONT), LLC
- MINGJUN YU
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD AND SYSTEM FOR PROVIDING A PIEZOELECTRIC MULTILAYER
- Publication number 20120216378
- Publication date Aug 30, 2012
- WESTER DIGITAL (FREMONT), LLC
- Nathan C. Emley
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Pole width control on plated bevel main pole design of a perpendicu...
- Publication number 20100146773
- Publication date Jun 17, 2010
- HEADWAY TECHNOLOGIES, INC.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Application
Neck height equalization in magnetic write pole mold
- Publication number 20080096114
- Publication date Apr 24, 2008
- HEADWAY TECHNOLOGIES, INC.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Application
Neck height equalization in magnetic write pole mold
- Publication number 20060276039
- Publication date Dec 7, 2006
- HEADWAY TECHNOLOGIES, INC.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Application
Pole width control on plated bevel main pole design of a perpendicu...
- Publication number 20060044677
- Publication date Mar 2, 2006
- HEADWAY TECHNOLOGIES, INC.
- Donghong Li
- G11 - INFORMATION STORAGE
Information Patent Application
Using bilayer lithography process to define neck height for PMR
- Publication number 20060002021
- Publication date Jan 5, 2006
- HEADWAY TECHNOLOGIES, INC.
- Donghong Li
- G11 - INFORMATION STORAGE

Donghong Li

Person

Patents Grantslast 30 patents

Writer having a recessed trailing shield and nonmagnetic refill

Method of forming a fully wrapped-around shielded PMR writer pole

Method for fabricating a magnetic write pole having a leading edge...

Methods for manufacturing electronic lapping guides for writer head...

Magnetic writer having a partially shunted coil

Method for fabricating side shields in a magnetic writer

Method for providing a side shield for a magnetic recording transducer

Method for providing a monolithic shield for a magnetic recording t...

Shield designed for middle shields in a multiple sensor array

Method for providing a piezoelectric multilayer

Method of forming a fully wrapped-around shielded PMR writer pole

Method for providing a side shield for a magnetic recording transducer

Perpendicular magnetic recording head

Method for providing a perpendicular magnetic recording (PMR) trans...

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

Method of measuring a bevel angle in a write head

Method of manufacturing a magnetic write head mold for neck height...

Method of forming a pole tip region in a main pole layer of a perpe...

Pole width control on plated bevel main pole design of a perpendicu...

Using bilayer lithography process to define neck height for PMR

Method to form a cavity having inner walls of varying slope

Patents Applicationslast 30 patents

METHOD FOR FABRICATING A MAGNETIC SHIELD AT REDUCED COST AND WITH E...

METHOD AND SYSTEM FOR PROVIDING A PIEZOELECTRIC MULTILAYER

Pole width control on plated bevel main pole design of a perpendicu...

Neck height equalization in magnetic write pole mold

Neck height equalization in magnetic write pole mold

Pole width control on plated bevel main pole design of a perpendicu...

Using bilayer lithography process to define neck height for PMR