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Hiroki Yamada
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Kyoto, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Motor
Patent number
10,910,907
Issue date
Feb 2, 2021
Nidec Corporation
Hiroki Yamada
G11 - INFORMATION STORAGE
Information
Patent Grant
Motor and disk drive
Patent number
10,615,660
Issue date
Apr 7, 2020
Nidec Corporation
Hiroki Yamada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Base unit and disk drive apparatus
Patent number
10,490,231
Issue date
Nov 26, 2019
Nidec Corporation
Hiroki Yamada
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Fluid dynamic bearing apparatus, spindle motor, and disk drive appa...
Patent number
8,922,943
Issue date
Dec 30, 2014
Nidec Corporation
Hiroki Yamada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Fluid dynamic bearing apparatus with specific minute gap structure...
Patent number
8,743,505
Issue date
Jun 3, 2014
Nidec Corporation
Hiroki Yamada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Fluid dynamic bearing apparatus arranged to discharge air bubbles g...
Patent number
8,472,132
Issue date
Jun 25, 2013
Nidec Corporation
Hiroki Yamada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
MOTOR AND DISK DRIVE
Publication number
20200106323
Publication date
Apr 2, 2020
NIDEC CORPORATION
Hiroki YAMADA
G11 - INFORMATION STORAGE
Information
Patent Application
BASE UNIT AND DISK DRIVE APPARATUS
Publication number
20190096443
Publication date
Mar 28, 2019
NIDEC CORPORATION
Hiroki YAMADA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOTOR
Publication number
20190097485
Publication date
Mar 28, 2019
NIDEC CORPORATION
Hiroki YAMADA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MOTOR
Publication number
20190097488
Publication date
Mar 28, 2019
NIDEC CORPORATION
Hiroki YAMADA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
APPARATUS INCLUDING CAPILLARY AND LABYRINTH SEALS
Publication number
20140286600
Publication date
Sep 25, 2014
Hiroki YAMADA
G11 - INFORMATION STORAGE
Information
Patent Application
FLUID DYNAMIC BEARING APPARATUS, SPINDLE MOTOR, AND DISK DRIVE APPA...
Publication number
20130243356
Publication date
Sep 19, 2013
SEAGATE TECHNOLOGY LLC
Hiroki YAMADA
G11 - INFORMATION STORAGE
Information
Patent Application
FLUID DYNAMIC BEARING APPARATUS, SPINDLE MOTOR, AND DISK DRIVE APPA...
Publication number
20120063030
Publication date
Mar 15, 2012
NIDEC CORPORATION
Hiroki YAMADA
G11 - INFORMATION STORAGE
Information
Patent Application
FLUID DYNAMIC BEARING APPARATUS, SPINDLE MOTOR, AND DISK DRIVE APPA...
Publication number
20110019303
Publication date
Jan 27, 2011
NIDEC CORPORATION
Hiroki Yamada
G11 - INFORMATION STORAGE
Information
Patent Application
FLUID DYNAMIC BEARING APPARATUS, SPINDLE MOTOR, AND DISK DRIVE APPA...
Publication number
20100296190
Publication date
Nov 25, 2010
NIDEC CORPORATION
Hiroki Yamada
G11 - INFORMATION STORAGE