Hidehiko Numasato

Person

Odaware, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Head velocity derating for data storage devices including disk media
- Patent number 12,223,982
- Issue date Feb 11, 2025
- Western Digital Technologies, Inc.
- Hiroshi Uchida
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device with notch filter calibration based on multi-ra...
- Patent number 11,915,731
- Issue date Feb 27, 2024
- Western Digital Technologies, Inc.
- Shinsuke Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device with notch filter calibration based on multi-ra...
- Patent number 11,817,122
- Issue date Nov 14, 2023
- Western Digital Technologies, Inc.
- Shinsuke Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device sorting access commands based on peak current f...
- Patent number 10,930,310
- Issue date Feb 23, 2021
- Western Digital Technologies, Inc.
- Hiroshi Uchida
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data storage device managing peak current for multiple actuators
- Patent number 10,839,839
- Issue date Nov 17, 2020
- Western Digital Technologies, Inc.
- Hiroshi Uchida
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device employing nominal and adaptive multi-actuator d...
- Patent number 10,410,657
- Issue date Sep 10, 2019
- Western Digital Technologies, Inc.
- Jianguo Zhou
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus with dual stage actuator
- Patent number 7,173,790
- Issue date Feb 6, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Masahito Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus
- Patent number 6,961,205
- Issue date Nov 1, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Takenori Atsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Positioning control device for two-stage actuator
- Patent number 6,898,039
- Issue date May 24, 2005
- Hitachi, Ltd.
- Masahito Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus and servo signal recording method
- Patent number 6,888,696
- Issue date May 3, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Kei Yasuna
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device including coarse and micro actuators
- Patent number 6,707,633
- Issue date Mar 16, 2004
- Hitachi, Ltd.
- Atsushi Okuyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus having an accelerometer for detecting accel...
- Patent number 6,407,876
- Issue date Jun 18, 2002
- Hitachi, Ltd.
- Takashi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus having an accelerometer for detecting accel...
- Patent number 6,335,845
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Takashi Yamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for positioning magnetic head and method of the same
- Patent number 5,986,845
- Issue date Nov 16, 1999
- Hitachi, Ltd.
- Takashi Yamaguchi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
DATA STORAGE DEVICE WITH NOTCH FILTER CALIBRATION BASED ON MULTI-RA...
- Publication number 20240071415
- Publication date Feb 29, 2024
- Western Digital Technologies, Inc.
- Shinsuke Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE WITH MICRO-ACTUATOR INTERCONNECT CONDITIONING
- Publication number 20110013319
- Publication date Jan 20, 2011
- Eiji Soga
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk apparatus with dual stage actuator
- Publication number 20060039079
- Publication date Feb 23, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Masahito Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk apparatus
- Publication number 20040240102
- Publication date Dec 2, 2004
- Takenori Atsumi
- G11 - INFORMATION STORAGE
Information Patent Application
Positioning control device for two-stage actuator
- Publication number 20040004781
- Publication date Jan 8, 2004
- Masahito Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk apparatus and servo signal recording method
- Publication number 20020105751
- Publication date Aug 8, 2002
- Kei Yasuna
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk device
- Publication number 20010005295
- Publication date Jun 28, 2001
- Atsushi Okuyama
- G11 - INFORMATION STORAGE

Hidehiko Numasato

Person

Patents Grantslast 30 patents

Head velocity derating for data storage devices including disk media

Data storage device with notch filter calibration based on multi-ra...

Data storage device with notch filter calibration based on multi-ra...

Data storage device sorting access commands based on peak current f...

Data storage device managing peak current for multiple actuators

Data storage device employing nominal and adaptive multi-actuator d...

Magnetic disk apparatus with dual stage actuator

Magnetic disk apparatus

Positioning control device for two-stage actuator

Magnetic disk apparatus and servo signal recording method

Magnetic disk device including coarse and micro actuators

Magnetic disk apparatus having an accelerometer for detecting accel...

Magnetic disk apparatus having an accelerometer for detecting accel...

Apparatus for positioning magnetic head and method of the same

Patents Applicationslast 30 patents

DATA STORAGE DEVICE WITH NOTCH FILTER CALIBRATION BASED ON MULTI-RA...

DISK DRIVE WITH MICRO-ACTUATOR INTERCONNECT CONDITIONING

Magnetic disk apparatus with dual stage actuator

Magnetic disk apparatus

Positioning control device for two-stage actuator

Magnetic disk apparatus and servo signal recording method

Magnetic disk device