Patent application number | Description | Published |
20080265078 | TAPE REEL, RECORDING TAPE CARTRIDGE, TAKE-UP REEL, PULLOUT MEMBER, AND DRIVE DEVICE - In a tape reel that includes a hub around which recording tape is wound and flanges disposed on both end portions of the hub, the elastic modulus in a radial direction of the hub is equal to or greater than 16.0 GPa, and the hub includes different radii on one end side thereof and another end side thereof. The recording tape is wound around the hub such that the side where the radius of curvature of the curvature of a tape edge of the recording tape is small corresponds to the small radius side of the hub. When the recording tape is wound around the hub, fluctuation of the recording tape in an axial direction of the hub is controlled, and one-layer protrusion and disorderly winding of the recording tape that has been wound around the hub are controlled. | 10-30-2008 |
20100065672 | RECORDING TAPE CARTRIDGE - A recording tape cartridge includes a case, a shielding member, a first dustproofing wall portion and a second dustproofing wall portion. The case rotatably accommodates a single reel on which a recording tape is wound. An aperture is formed in a side wall of the case for drawing out of a leader member attached to an end portion of the recording tape. The shielding member slides along the side wall to open and close the aperture. The first dustproofing wall portion is provided protruding from a portion of the side wall, and the second dustproofing wall portion is provided protruding from the shielding member. When the aperture is closed, the first dustproofing wall portion opposes the shielding member and the second dustproofing wall portion contacts or is proximate to the first dustproofing wall portion. | 03-18-2010 |
20100073818 | RECORDING TAPE CARTRIDGE - The present invention provides a recording tape cartridge that when loaded in a drive device, generation of abrasion dust from a case can be restrained. The recording tape cartridge includes: a case in which a single reel with a recording tape being wound thereon is rotatably accommodated; a first region of the case, through which a plate spring provided in a drive device passes during loading of the recording tape cartridge into the drive device; and a second region of the case, which is disposed at a position higher than the first region and with which the plate spring comes into contact with pressure after the recording tape cartridge is loaded into the drive device. | 03-25-2010 |
20100258666 | LEADER MEMBER IN RECORDING TAPE CARTRIDGE, MANUFACTURING METHOD THEREOF, AND RECORDING TAPE CARTRIDGE - The present invention provides a leader member in a recording tape cartridge that has excellent productivity, even though the leader member is manufactured with stainless steel, a manufacturing method thereof, and the recording tape cartridge. A leader member that is attached to a free end of a recording tape wound around a single reel accommodated in a case and that is pulled out from an opening formed in the case by an pull out member of a drive device is manufactured by metal injection molding of stainless steel. | 10-14-2010 |
20100258667 | LEADER MEMBER IN RECORDING TAPE CARTRIDGE, MANUFACTURING METHOD THEREOF, AND RECORDING TAPE CARTRIDGE - The present invention provides a leader member in a recording tape cartridge that is excellent in terms of strength, rigidity, corrosion resistance, a low frictional property, and abrasion resistance, have excellent productivity, and is manufactured with a low cost, a manufacturing method thereof, and the recording tape cartridge. A leader member that is attached to a free end of a recording tape wound around a single reel accommodated in a case and that is pulled out from an opening formed in the case by an pull out member of a drive device is manufactured by die casting with one of a zinc alloy, an aluminum alloy, a magnesium alloy, or a copper alloy. | 10-14-2010 |
Patent application number | Description | Published |
20080223971 | TAPE REEL, RECORDING TAPE CARTRIDGE, TAKE-UP REEL, DRAWING-OUT MEMBER, AND DRIVE DEVICE - A tape reel, a recording tape cartridge, a take-up reel, and a drive device, in which displacement of recording tape in an axial direction of a hub may be suppressed during traveling and occurrence of reading errors of servo signals and recording/reproducing errors of data signals may be suppressed are obtained. The reel hub is integrally formed with a lower flange and a radius of the reel hub on an upper flange side is greater than a radius on a lower flange side. By winding the recording tape T around the reel hub in such a manner that a side having a smaller radius of curvature of a tape edge is on the lower flange side of the reel hub, the displacement of the recording tape T in the axial direction of the reel hub during traveling is suppressed. As a result, recording and reproducing errors of servo signals and recording signals may be suppressed and reduction of so-called position error signals and off-track errors may be expected even in a case of high-density recording. | 09-18-2008 |
20080237382 | TAPE REEL, RECORDING TAPE CARTRIDGE, TAKE-UP REEL, AND DRIVE DEVICE - There are provided a tape reel, a recording tape cartridge, a take-up reel, and a drive device at which, when a recording tape is wound on a hub, fluctuations in an axial direction of the hub can be suppressed and occurrence of tape edge damage can be prevented. At a tape reel having a hub on which a recording tape T is wound and flanges which are provided at both end portions of the hub, a large diameter portion, whose diameter is larger than diameters of both end portion sides of the hub, is formed at the hub. The large diameter portion is offset, from a widthwise direction central portion of the hub, toward the one flange side or the other flange side. | 10-02-2008 |
20080265077 | TAPE REEL, RECORDING TAPE CARTRIDGE, TAKE-UP REEL, DRAWING-OUT MEMBER, AND DRIVE DEVICE - A tape reel including: a substantially circular cylinder shaped hub; flanges provided as separate bodies from the hub at both end portions of the hub; a connecting member connecting together the flanges at the inside of the hub, in a non-contact state with the inner peripheral face of the hub. The recording tape is wound on the hub in such a manner that the side of the recording tape with the smaller radius of tape edge curvature is on the smaller diameter side of the hub. Also disclosed are: a recording tape cartridge housing such a tape reel; a take-up reel provided in a drive device; a drawing-out member, housed in the hub of a take-up reel and on which recording tape drawn-out from a recording tape cartridge is wound; and a drive device with take-up reel and drawing-out member. | 10-30-2008 |