Patent application number | Description | Published |
20080203838 | Dynamic Bearing Device - A dynamic pressure generation portion is formed on the outer circumferential surface | 08-28-2008 |
20090129710 | FLUID DYNAMIC BEARING DEVICE - The present invention aims to achieve a reduction in cost for a fluid dynamic bearing device. The fluid dynamic bearing device supports a shaft member ( | 05-21-2009 |
20090148084 | Fluid Dynamic Bearing Device - A fluid dynamic bearing device equipped with a shaft member of high strength and capable of maintaining high bearing performance is provided at low cost. A shaft blank ( | 06-11-2009 |
20090302697 | HOUSING FOR FLUID DYNAMIC BEARING DEVICE - Provided is a housing for a resin fluid dynamic bearing device in which deterioration with time of a fixing force for another member is mitigated and which can maintain a high bearing performance for a long period of time. The housing formed of a resin composition exhibiting a compression creep amount of 8% or less when a compressive pressure of 80 MPa is applied for 168 hours at an atmosphere temperature of 80° C., provides a sufficient fixing force for the another member fixed with a press-fitting force, for example, a bearing sleeve press-fitted into an inner periphery of the housing even after a long term use. Thus, there is no fear of fixing positions of the another member with respect to the housing being deviated and a high bearing performance is maintained for a long period of time. | 12-10-2009 |
20100002966 | FLUID DYNAMIC BEARING DEVICE AND PROCESS FOR MANUFACTURING THE SAME - Fixation strength of a bearing sleeve with respect to a housing is increased so that stable bearing performance can be achieved. A fluid dynamic bearing device ( | 01-07-2010 |
20100129014 | SHAFT MEMBER FOR FLUID BEARING DEVICE AND METHOD OF PRODUCING THE SAME - [Object] To manufacture at lower cost a shaft member for a fluid dynamic bearing device, which is excellent in accuracy of bearing surfaces and shape accuracy between the bearing surfaces, and which has high fixation strength between a shaft portion and a flange portion. | 05-27-2010 |
20100189383 | FLUID DYNAMIC BEARING DEVICE AND ASSEMBLING METHOD THEREOF - A first axial gap (L | 07-29-2010 |
20100194215 | FLUID DYNAMIC BEARING APPARATUS AND A MOTOR USING THE SAME - Assembly precision in a motor is improved and greater cost reduction is achieved. | 08-05-2010 |
20100226601 | FLUID DYNAMIC BEARING DEVICE | 09-09-2010 |
20100232733 | FLUID DYNAMIC BEARING DEVICE - In this type of fluid dynamic bearing device, a dynamic pressure generating part having high molding accuracy is formed at low cost. | 09-16-2010 |
20120126443 | HOUSING FOR FLUID DYNAMIC BEARING DEVICE - Provided is a housing for a resin fluid dynamic bearing device in which deterioration with time of a fixing force for another member is mitigated and which can maintain a high bearing performance for a long period of time. The housing formed of a resin composition exhibiting a compression creep amount of 8% or less when a compressive pressure of 80 MPa is applied for 168 hours at an atmosphere temperature of 80° C., provides a sufficient fixing force for the another member fixed with a press-fitting force, for example, a bearing sleeve press-fitted into an inner periphery of the housing even after a long term use. Thus, there is no fear of fixing positions of the another member with respect to the housing being deviated and a high bearing performance is maintained for a long period of time. | 05-24-2012 |
20120186983 | FLUID DYNAMIC BEARING DEVICE - It is an object of the present invention to provide a bearing member having a highly accurate dynamic pressure generating portion stably at low cost. Dynamic pressure grooves ( | 07-26-2012 |
20120237148 | FLUID DYNAMIC BEARING DEVICE - A fluid dynamic bearing device which exhibits high bearing performance at low cost has a highly accurate bearing gap. At least a region in the outer circumferential surface of a shaft, which faces the radial bearing gap, is constituted of an electroformed part, and the region of the shaft excluding the electroformed part is constituted of a resin portion. | 09-20-2012 |
20130272634 | FLUID DYNAMIC BEARING DEVICE - A fluid dynamic bearing device ( | 10-17-2013 |