Hiroshi IWAI

Person

Shizuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Impact resistant rotating device with increased-thickness portion r...
- Patent number 9,030,775
- Issue date May 12, 2015
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with hub and wiring member with increased thinness
- Patent number 8,995,084
- Issue date Mar 31, 2015
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Tomoyuki Tashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device having a projecting portion and a mounted laminat...
- Patent number 8,902,542
- Issue date Dec 2, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with hub with thinness and suppressed torque decr...
- Patent number 8,848,312
- Issue date Sep 30, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method of disk drive device capable of reducing amoun...
- Patent number 8,773,813
- Issue date Jul 8, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device
- Patent number 8,665,558
- Issue date Mar 4, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Production method of rotating device having thrust dynamic pressure...
- Patent number 8,631,677
- Issue date Jan 21, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Yasuo Fukuzako
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Disk drive device rotationally driving recording disk
- Patent number 8,625,232
- Issue date Jan 7, 2014
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Tomoyuki Tashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with hub with thinness and suppressed torque decr...
- Patent number 8,619,387
- Issue date Dec 31, 2013
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device having a vibration-reducing element
- Patent number 8,451,557
- Issue date May 28, 2013
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with appropriate number of combinations of magnet...
- Patent number 8,451,558
- Issue date May 28, 2013
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with motor coil wiring arrangement to reduce thic...
- Patent number 8,395,862
- Issue date Mar 12, 2013
- Alphana Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Method manufacturing of fluid dynamic bearing using cutting tool th...
- Patent number 8,381,404
- Issue date Feb 26, 2013
- Alphana Technology Co., Ltd.
- Hisayuki Aoshima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Manufacturing method of disk drive device capable of reducing amoun...
- Patent number 8,358,484
- Issue date Jan 22, 2013
- Alphana Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive hub with motor coil wiring arrangement to reduce thickne...
- Patent number 8,213,114
- Issue date Jul 3, 2012
- Alphana Technology Co., Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive device with vibration reduction of second order rocking-...
- Patent number 8,213,113
- Issue date Jul 3, 2012
- Alphana Technology Co. Ltd.
- Takanori Watanabe
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
ROTATING DEVICE AND A METHOD FOR MANUFACTURING A ROTATING DEVICE
- Publication number 20150213833
- Publication date Jul 30, 2015
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE WITH HUB WITH THINNESS AND SUPPRESSED TORQUE DECR...
- Publication number 20140362471
- Publication date Dec 11, 2014
- Tomoyuki TASHIRO
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE WITH HUB WITH THINNESS AND SUPPRESSED TORQUE DECR...
- Publication number 20130342935
- Publication date Dec 26, 2013
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE
- Publication number 20130229093
- Publication date Sep 5, 2013
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE HAVING A VIBRATION-REDUCING ELEMENT
- Publication number 20130222946
- Publication date Aug 29, 2013
- Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD MANUFACTURING OF FLUID DYNAMIC BEARING USING CUTTING TOOL TH...
- Publication number 20130148918
- Publication date Jun 13, 2013
- ALPHANA Technology Co., Ltd.
- Hisayuki AOSHIMA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
DISK DRIVE DEVICE WITH HUB
- Publication number 20130148241
- Publication date Jun 13, 2013
- ALPHANA Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
MANUFACTURING METHOD OF DISK DRIVE DEVICE CAPABLE OF REDUCING AMOUN...
- Publication number 20130077462
- Publication date Mar 28, 2013
- ALPHANA Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE WITH HUB
- Publication number 20120262823
- Publication date Oct 18, 2012
- ALPHANA Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
ROTATING DEVICE AND A METHOD FOR MANUFACTURING A ROTATING DEVICE
- Publication number 20110279925
- Publication date Nov 17, 2011
- ALPHANA Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE
- Publication number 20110255191
- Publication date Oct 20, 2011
- ALPHANA Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
PRODUCTION METHOD OF ROTATING DEVICE HAVING THRUST DYNAMIC PRESSURE...
- Publication number 20110154875
- Publication date Jun 30, 2011
- ALPHANA Technology Co., Ltd.
- Yasuo FUKUZAKO
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
DISK DRIVE DEVICE HAVING A LAMINATED CORE
- Publication number 20110096437
- Publication date Apr 28, 2011
- ALPHANA Technology Co., Ltd.
- Kazuyoshi NAGAI
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD MANUFACTURING OF FLUID DYNAMIC BEARING USING CUTTING TOOL TH...
- Publication number 20110080673
- Publication date Apr 7, 2011
- ALPHANA Technology Co., Ltd.
- Hisayuki AOSHIMA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
DISK DRIVE DEVICE CAPABLE OF BEING IMPROVED IN ANTI-VIBRATION CHARA...
- Publication number 20110064341
- Publication date Mar 17, 2011
- ALPHANA Technology Co., Ltd.
- Masafumi MIZUNO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
DISK DRIVE DEVICE WITH HUB
- Publication number 20110043948
- Publication date Feb 24, 2011
- ALPHANA Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE ROTATIONALLY DRIVING RECORDING DISK
- Publication number 20100238590
- Publication date Sep 23, 2010
- ALPHANA Technology Co., Ltd.
- Tomoyuki TASHIRO
- G11 - INFORMATION STORAGE
Information Patent Application
MANUFACTURING METHOD OF DISK DRIVE DEVICE CAPABLE OF REDUCING AMOUN...
- Publication number 20100220412
- Publication date Sep 2, 2010
- ALPHANA Technology Co., Ltd.
- Kazuyoshi Nagai
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DRIVE DEVICE
- Publication number 20100202084
- Publication date Aug 12, 2010
- ALPHANA Technology Co., Ltd.
- Takanori WATANABE
- G11 - INFORMATION STORAGE

Hiroshi IWAI

Person

Patents Grantslast 30 patents

Impact resistant rotating device with increased-thickness portion r...

Disk drive device with hub and wiring member with increased thinness

Disk drive device having a projecting portion and a mounted laminat...

Disk drive device with hub with thinness and suppressed torque decr...

Manufacturing method of disk drive device capable of reducing amoun...

Disk drive device

Production method of rotating device having thrust dynamic pressure...

Disk drive device rotationally driving recording disk

Disk drive device with hub with thinness and suppressed torque decr...

Disk drive device having a vibration-reducing element

Disk drive device with appropriate number of combinations of magnet...

Disk drive device with motor coil wiring arrangement to reduce thic...

Method manufacturing of fluid dynamic bearing using cutting tool th...

Manufacturing method of disk drive device capable of reducing amoun...

Disk drive hub with motor coil wiring arrangement to reduce thickne...

Disk drive device with vibration reduction of second order rocking-...

Patents Applicationslast 30 patents

ROTATING DEVICE AND A METHOD FOR MANUFACTURING A ROTATING DEVICE

DISK DRIVE DEVICE WITH HUB WITH THINNESS AND SUPPRESSED TORQUE DECR...

DISK DRIVE DEVICE WITH HUB WITH THINNESS AND SUPPRESSED TORQUE DECR...

DISK DRIVE DEVICE

DISK DRIVE DEVICE HAVING A VIBRATION-REDUCING ELEMENT

METHOD MANUFACTURING OF FLUID DYNAMIC BEARING USING CUTTING TOOL TH...

DISK DRIVE DEVICE WITH HUB

MANUFACTURING METHOD OF DISK DRIVE DEVICE CAPABLE OF REDUCING AMOUN...

DISK DRIVE DEVICE WITH HUB

ROTATING DEVICE AND A METHOD FOR MANUFACTURING A ROTATING DEVICE

DISK DRIVE DEVICE

PRODUCTION METHOD OF ROTATING DEVICE HAVING THRUST DYNAMIC PRESSURE...

DISK DRIVE DEVICE HAVING A LAMINATED CORE

METHOD MANUFACTURING OF FLUID DYNAMIC BEARING USING CUTTING TOOL TH...

DISK DRIVE DEVICE CAPABLE OF BEING IMPROVED IN ANTI-VIBRATION CHARA...

DISK DRIVE DEVICE WITH HUB

DISK DRIVE DEVICE ROTATIONALLY DRIVING RECORDING DISK

MANUFACTURING METHOD OF DISK DRIVE DEVICE CAPABLE OF REDUCING AMOUN...

DISK DRIVE DEVICE