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Ruhang Ding
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Pleasanton, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
System for controlling a critical dimension (CD) uniformity of a ma...
Patent number
12,254,908
Issue date
Mar 18, 2025
Headway Technologies, Inc.
Tom Zhong
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of ultra-fine critical dimension patterning for magnetic hea...
Patent number
11,715,491
Issue date
Aug 1, 2023
Headway Technologies, Inc.
Tom Zhong
G11 - INFORMATION STORAGE
Information
Patent Grant
Composite seed layer
Patent number
10,354,707
Issue date
Jul 16, 2019
Headway Technologies, Inc.
Kunliang Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic reader sensor with shield spacing improvement and better p...
Patent number
10,157,634
Issue date
Dec 18, 2018
Headway Technologies, Inc.
Ruhang Ding
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic reader sensor with shield spacing improvement and better p...
Patent number
9,799,357
Issue date
Oct 24, 2017
Headway Technologies, Inc.
Ruhang Ding
G11 - INFORMATION STORAGE
Information
Patent Grant
Reader designs of shield to shield spacing improvement
Patent number
9,437,225
Issue date
Sep 6, 2016
Headway Technologies, Inc.
Junjie Quan
G11 - INFORMATION STORAGE
Information
Patent Grant
Reader sensor structure and its method of construction
Patent number
9,337,414
Issue date
May 10, 2016
Headway Technologies, Inc.
Min Li
G11 - INFORMATION STORAGE
Information
Patent Grant
Two step method to fabricate small dimension devices for magnetic r...
Patent number
8,865,008
Issue date
Oct 21, 2014
Headway Technologies, Inc.
Ruhang Ding
G11 - INFORMATION STORAGE
Information
Patent Grant
Microwave-assisted magnetic recording head, method of manufacturing...
Patent number
8,780,500
Issue date
Jul 15, 2014
Kabushiki Kaisha Toshiba
Satoshi Shirotori
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Method Of Ultra-Fine Critical Dimension Patterning For Magnetic Hea...
Publication number
20230343362
Publication date
Oct 26, 2023
HEADWAY TECHNOLOGIES, INC.
Tom Zhong
G11 - INFORMATION STORAGE
Information
Patent Application
Composite Hard Masks For Ultra-Thin Magnetic Sensors
Publication number
20230258747
Publication date
Aug 17, 2023
HEADWAY TECHNOLOGIES, INC.
Tom Zhong
B24 - GRINDING POLISHING
Information
Patent Application
Method Of Ultra-Fine Critical Dimension Patterning For Magnetic Hea...
Publication number
20230005500
Publication date
Jan 5, 2023
HEADWAY TECHNOLOGIES, INC.
Tom Zhong
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Reader Sensor with Shield Spacing Improvement and Better P...
Publication number
20180130487
Publication date
May 10, 2018
HEADWAY TECHNOLOGIES, INC.
Ruhang Ding
G11 - INFORMATION STORAGE
Information
Patent Application
Novel Composite Seed Layer
Publication number
20170301855
Publication date
Oct 19, 2017
HEADWAY TECHNOLOGIES, INC.
Kunliang Zhang
G11 - INFORMATION STORAGE
Information
Patent Application
Reader Designs of Shield to Shield Spacing Improvement
Publication number
20160035378
Publication date
Feb 4, 2016
HEADWAY TECHNOLOGIES, INC.
Junjie Quan
G11 - INFORMATION STORAGE
Information
Patent Application
Reader Sensor Structure and its Method of Construction
Publication number
20140264665
Publication date
Sep 18, 2014
HEADWAY TECHNOLOGIES, INC.
Min Li
G01 - MEASURING TESTING
Information
Patent Application
Two Step Method to Fabricate Small Dimension Devices for Magnetic R...
Publication number
20140116984
Publication date
May 1, 2014
HEADWAY TECHNOLOGIES, INC.
Ruhang Ding
G01 - MEASURING TESTING
Information
Patent Application
MICROWAVE-ASSISTED MAGNETIC RECORDING HEAD, METHOD OF MANUFACTURING...
Publication number
20140078620
Publication date
Mar 20, 2014
TDK Corporation
Satoshi SHIROTORI
G11 - INFORMATION STORAGE