Rikuro Obara

Person

Kitasaku-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Fluid dynamic pressure bearing for spindle motors and storage disk...
- Patent number 7,764,463
- Issue date Jul 27, 2010
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Fluid dynamic pressure bearing device, spindle motor provided with...
- Patent number 7,661,882
- Issue date Feb 16, 2010
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Fluid dynamic bearing mechanism for a motor
- Patent number 7,654,744
- Issue date Feb 2, 2010
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Fluid dynamic bearing, motor and storage disk device
- Patent number 7,648,281
- Issue date Jan 19, 2010
- Minebea Co., Ltd.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fluid dynamic bearing and a storage disk drive with a spindle motor...
- Patent number 7,510,330
- Issue date Mar 31, 2009
- Minebea Co., Ltd.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Special type bearing device
- Patent number 7,306,374
- Issue date Dec 11, 2007
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spindle motor and method of manufacturing the same
- Patent number 7,246,440
- Issue date Jul 24, 2007
- Minebea Co., Ltd.
- Rikuro Obara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor
- Patent number 7,176,594
- Issue date Feb 13, 2007
- Minebea Co., Ltd.
- Rikuro Obara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Special type bearing device
- Patent number 7,168,857
- Issue date Jan 30, 2007
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low-friction, high-dispersion synthetic resin composition containin...
- Patent number 7,144,932
- Issue date Dec 5, 2006
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for manufacturing miniature ball bearings
- Patent number 7,000,320
- Issue date Feb 21, 2006
- Minebea Co., Ltd.
- Rikuro Obara
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for manufacturing miniature ball bearings
- Patent number 6,990,738
- Issue date Jan 31, 2006
- Minebea Co., Ltd.
- Rikuro Obara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hydrodynamic pressure bearing system and spindle motor using the same
- Patent number 6,965,493
- Issue date Nov 15, 2005
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Axial electric fan blower with electric components housing sealed f...
- Patent number 6,916,160
- Issue date Jul 12, 2005
- Minebea Kabushiki Kaisha
- Rikuro Obara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Anti-friction bearing
- Patent number 6,855,214
- Issue date Feb 15, 2005
- Rikuro Obara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Weather-resistant exterior building material
- Patent number 6,855,279
- Issue date Feb 15, 2005
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Special type bearing device
- Patent number 6,799,893
- Issue date Oct 5, 2004
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spindle motor
- Patent number 6,794,774
- Issue date Sep 21, 2004
- Minebea Kabushiki Kaisha
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making synthetic resin composition with lubricative under...
- Patent number 6,787,075
- Issue date Sep 7, 2004
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ceramic material, method of producing same, and formed product thereof
- Patent number 6,777,360
- Issue date Aug 17, 2004
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Spindle motor
- Patent number 6,734,591
- Issue date May 11, 2004
- Minebea Kabushiki Kaisha
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Motor
- Patent number 6,734,590
- Issue date May 11, 2004
- Minebea Co., Ltd.
- Rikuro Obara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Sleeve bearing arrangement
- Patent number 6,712,517
- Issue date Mar 30, 2004
- Minebea Co., Ltd.
- Kazuo Hokkirigawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Low profile key switch structure
- Patent number 6,683,264
- Issue date Jan 27, 2004
- Minebea Co., Ltd.
- Rikuro Obara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Motor and method of manufacturing the same
- Patent number 6,657,340
- Issue date Dec 2, 2003
- Minebea Co., Ltd.
- Rikuro Obara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Pivot bearing assembly
- Patent number 6,655,847
- Issue date Dec 2, 2003
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle motor and manufacturing method thereof
- Patent number 6,639,336
- Issue date Oct 28, 2003
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Grant
Compound bearing apparatus
- Patent number 6,599,021
- Issue date Jul 29, 2003
- Minebea Kabushiki Kaisha
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Double seal bearing
- Patent number 6,599,020
- Issue date Jul 29, 2003
- Minebea Kabushiki Kaisha
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bearing apparatus
- Patent number 6,599,022
- Issue date Jul 29, 2003
- Minebea Kabushiki Kaisha
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Fluid Dynamic Pressure Bearing
- Publication number 20090160277
- Publication date Jun 25, 2009
- Minebea Co., Ltd
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid Dynamic Pressure Bearing, Spindle Motor Using the Fluid Dynam...
- Publication number 20080291574
- Publication date Nov 27, 2008
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Fluid Dynamic Bearing Mechanism
- Publication number 20080279492
- Publication date Nov 13, 2008
- NMB (USA), Inc.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid Dynamic Pressure Bearing Device, Spindle Motor Provided with...
- Publication number 20080095480
- Publication date Apr 24, 2008
- MINEBEA CO., LTD.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Fluid Dynamic Bearing and a Storage Disk Drive With a Spindle Motor...
- Publication number 20080037915
- Publication date Feb 14, 2008
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid Dynamic Pressure Bearing, Spindle Motor and Storage Disk Driv...
- Publication number 20080030895
- Publication date Feb 7, 2008
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Electrochemical Machining Tool and Method for Machining a Product U...
- Publication number 20070246372
- Publication date Oct 25, 2007
- MINEBEA CO., LTD.
- Rikuro Obara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Fluid Dynamic Bearing Mechanism for a Motor
- Publication number 20070211971
- Publication date Sep 13, 2007
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Fluid Dynamic Pressure Bearing, Spindle Motor Provided with the Flu...
- Publication number 20070206889
- Publication date Sep 6, 2007
- Minebea Co.,Ltd
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Special type bearing device
- Publication number 20070116390
- Publication date May 24, 2007
- Kazuo Hokkirigawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid dynamic bearing unit
- Publication number 20070110348
- Publication date May 17, 2007
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Motor
- Publication number 20070103020
- Publication date May 10, 2007
- MINEBEA CO., LTD.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fluid dynamic bearing, motor and storage disk device
- Publication number 20070092172
- Publication date Apr 26, 2007
- MINEBEA CO., LTD.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Roofing tile and snow-melting, tiled roof using the same
- Publication number 20050198917
- Publication date Sep 15, 2005
- MINEBEA CO., LTD.
- Kazuo Hokkirigawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Double-row ball bearings and double-row ball bearing preload applic...
- Publication number 20050031241
- Publication date Feb 10, 2005
- MINEBEA CO., LTD.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Synthetic resin composition with lubricative underwater properties...
- Publication number 20050032939
- Publication date Feb 10, 2005
- Kazuo Hokkirigawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Spindle motor and method of manufacturing the same
- Publication number 20050028349
- Publication date Feb 10, 2005
- MINEBEA CO., LTD.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Special type bearing device
- Publication number 20050025406
- Publication date Feb 3, 2005
- Kazuo Hokkirigawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Motor
- Publication number 20040160137
- Publication date Aug 19, 2004
- MINEBEA CO., LTD.
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Fan motor
- Publication number 20040136842
- Publication date Jul 15, 2004
- MINEBEA CO., LTD.
- Rikuro Obara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Double-row ball bearings and double-row ball bearing preload applic...
- Publication number 20040131294
- Publication date Jul 8, 2004
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Motor with compound bearing for OA device
- Publication number 20040114842
- Publication date Jun 17, 2004
- Rikuro Obara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Low-friction, high-dispersion synthetic resin compositon containing...
- Publication number 20030229161
- Publication date Dec 11, 2003
- Minebea, Co., Ltd.
- Kazuo Hokkirigawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Compound bearing apparatus, and spindle motor and swing arm for har...
- Publication number 20030206672
- Publication date Nov 6, 2003
- MINEBEA KABUSHIKI-KAISHA
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Spindle motor having a fluid dynamic bearing system
- Publication number 20030202722
- Publication date Oct 30, 2003
- MINEBEA CO., LTD.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Spindle motor and manufacturing method thereof
- Publication number 20030200645
- Publication date Oct 30, 2003
- MINEBEA CO., LTD.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Manufacturing method for a spindle motor rotor hub
- Publication number 20030200646
- Publication date Oct 30, 2003
- Rikuro Obara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Spindle motor having a fluid dynamic bearing system
- Publication number 20030202721
- Publication date Oct 30, 2003
- Minebea Co., Ltd.
- Rikuro Obara
- G11 - INFORMATION STORAGE
Information Patent Application
Low profile key switch structure
- Publication number 20030188961
- Publication date Oct 9, 2003
- MINEBEA CO., LTD.
- Rikuro Obara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Synthetic resin composition with lubricative underwater properties...
- Publication number 20030183973
- Publication date Oct 2, 2003
- MINEBEA CO., LTD.
- Kazuo Hokkirigawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Rikuro Obara

Person

Patents Grantslast 30 patents

Fluid dynamic pressure bearing for spindle motors and storage disk...

Fluid dynamic pressure bearing device, spindle motor provided with...

Fluid dynamic bearing mechanism for a motor

Fluid dynamic bearing, motor and storage disk device

Fluid dynamic bearing and a storage disk drive with a spindle motor...

Special type bearing device

Spindle motor and method of manufacturing the same

Motor

Special type bearing device

Low-friction, high-dispersion synthetic resin composition containin...

Process for manufacturing miniature ball bearings

Process for manufacturing miniature ball bearings

Hydrodynamic pressure bearing system and spindle motor using the same

Axial electric fan blower with electric components housing sealed f...

Anti-friction bearing

Weather-resistant exterior building material

Special type bearing device

Spindle motor

Method of making synthetic resin composition with lubricative under...

Ceramic material, method of producing same, and formed product thereof

Spindle motor

Motor

Sleeve bearing arrangement

Low profile key switch structure

Motor and method of manufacturing the same

Pivot bearing assembly

Spindle motor and manufacturing method thereof

Compound bearing apparatus

Double seal bearing

Bearing apparatus

Patents Applicationslast 30 patents

Fluid Dynamic Pressure Bearing

Fluid Dynamic Pressure Bearing, Spindle Motor Using the Fluid Dynam...

Fluid Dynamic Bearing Mechanism

Fluid Dynamic Pressure Bearing Device, Spindle Motor Provided with...

Fluid Dynamic Bearing and a Storage Disk Drive With a Spindle Motor...

Fluid Dynamic Pressure Bearing, Spindle Motor and Storage Disk Driv...

Electrochemical Machining Tool and Method for Machining a Product U...

Fluid Dynamic Bearing Mechanism for a Motor

Fluid Dynamic Pressure Bearing, Spindle Motor Provided with the Flu...

Special type bearing device

Fluid dynamic bearing unit

Motor

Fluid dynamic bearing, motor and storage disk device

Roofing tile and snow-melting, tiled roof using the same

Double-row ball bearings and double-row ball bearing preload applic...

Synthetic resin composition with lubricative underwater properties...

Spindle motor and method of manufacturing the same

Special type bearing device

Motor

Fan motor

Double-row ball bearings and double-row ball bearing preload applic...

Motor with compound bearing for OA device

Low-friction, high-dispersion synthetic resin compositon containing...

Compound bearing apparatus, and spindle motor and swing arm for har...

Spindle motor having a fluid dynamic bearing system

Spindle motor and manufacturing method thereof

Manufacturing method for a spindle motor rotor hub

Spindle motor having a fluid dynamic bearing system

Low profile key switch structure

Synthetic resin composition with lubricative underwater properties...