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Kei Hirata
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Milpitas, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Perpendicular magnetic recording head equipping a spin torque oscil...
Patent number
12,073,857
Issue date
Aug 27, 2024
Headway Technologies, Inc.
Kei Hirata
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording (PMR) writer with recessed leading...
Patent number
11,699,460
Issue date
Jul 11, 2023
Headway Technologies, Inc.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording (PMR) writer with recessed leading...
Patent number
11,295,767
Issue date
Apr 5, 2022
Headway Technologies, Inc.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with a main pole including first and second layers an...
Patent number
10,839,829
Issue date
Nov 17, 2020
Headway Technologies, Inc.
Yoshitaka Sasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head including a main pole and a write shield
Patent number
10,586,558
Issue date
Mar 10, 2020
Headway Technologies, Inc.
Yoshitaka Sasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
High damping shield with low magnetic moment in perpendicular magne...
Patent number
10,522,178
Issue date
Dec 31, 2019
Headway Technologies, Inc.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Optimization of high damping shield geometry in perpendicular magne...
Patent number
10,490,210
Issue date
Nov 26, 2019
Headway Technologies, Inc.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording (PMR) write head with patterned hi...
Patent number
10,339,964
Issue date
Jul 2, 2019
Headway Technologies, Inc.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head including a coil and a magnetic path forming section
Patent number
10,297,277
Issue date
May 21, 2019
Headway Technologies, Inc.
Yoshitaka Sasaki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Perpendicular Magnetic Recording Head Equipping A Spin Torque Oscil...
Publication number
20240363140
Publication date
Oct 31, 2024
HEADWAY TECHNOLOGIES, INC.
Kei Hirata
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular Magnetic Recording Head Equipping A Spin Torque Oscil...
Publication number
20240274152
Publication date
Aug 15, 2024
HEADWAY TECHNOLOGIES, INC.
Kei Hirata
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular Magnetic Recording (PMR) Writer with Recessed Leading...
Publication number
20220223176
Publication date
Jul 14, 2022
HEADWAY TECHNOLOGIES, INC.
Ying Liu
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular Magnetic Recording (PMR) Writer with Recessed Leading...
Publication number
20200176021
Publication date
Jun 4, 2020
HEADWAY TECHNOLOGIES, INC.
Ying Liu
G11 - INFORMATION STORAGE