...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7540444 | Recording tape cartridge A recording tape cartridge comprises a single reel at which a recording tape is wound around a hub, a case rotatably accommodating the reel, an opening for pulling-out of a leader member attached to an end portion of the recording tape, and a tape guide which the re... | 06/02/2009 |
| 7540445 | Tape cartridge A tape cartridge according to the present invention includes a case, a reel disposed in the case, a tape that can be wound around the reel in such a manner as to be fed out freely, and a guide member for tape guidance disposed in the case. The guide member is suppor... | 06/02/2009 |
| 7467757 | Tape tension modulation system and method A system and method of modulating tape tension during operation of a tape drive data storage system in which a fixed position tape guide utilizes one or more drag elements to exert a control force on a tape medium that affects downstream tape tension. Drag elements ... | 12/23/2008 |
| 7407127 | Single reel tape cartridge having guide surface In one example of one aspect of the invention, a single reel data storage cartridge is provided. The single reel data storage cartridge includes a housing having an access window and a reel rotatably disposed within the housing and having storage tape wound on the r... | 08/05/2008 |
| 7325763 | Magnetic tape guiding system guide roller with single flange oriented at lower debris tape edge Magnetic tape guiding system takes advantage of characteristics of slit magnetic tape wherein one of the two tape edges has a higher tendency to shed tape debris than the other, and the slit tape is consistently loaded into tape cartridges in the same direction. A t... | 02/05/2008 |
| 7306181 | Guide for directing tape media along tape path with reduced contact between guide and tape edge A tape guide is provided for use in routing a tape media, used in a computer or other application, along a pre-specified path of travel. The tape guide is oriented along a vertical axis and comprises three sections or components joined together to form an integral g... | 12/11/2007 |
| 7261250 | Roller guide tape path A tape guide mechanism in a storage device is disclosed for defining an improved roller guide tape path. A cartridge reel is provided for supplying tape to a take-up reel. Multiple flanged guides are provided located remotely from the cartridge and take-up reels. A ... | 08/28/2007 |
| 7255297 | Adaptive tape drive roller guide Tape drives and methods of operating tape drives are provided. The tape drive may include: a first reel motor for rotating a first reel having a data storage tape medium wound about the first reel; a data transfer head; a second reel motor for rotating a second reel... | 08/14/2007 |
| 7240872 | Guide roller including a pair of bearing having bearings flanges for retaining a pair of firm disk-shaped annular flanges A pair of disk-shaped annular flanges is made of material firmer than that of a hollow cylindrical-shaped roller portion. The roller portion has an outer peripheral surface in which the flanges are mounted at opposite ends thereof. On press-fitting a pair of bearing... | 07/10/2007 |
| 7219851 | Tape path roller guide and method for making A tape path roller guide has a cylindrical guiding surface between two flanges. A plurality of continuous venting valleys in the guiding surface are wholly parallel to a central axis of the cylinder forming axial paddle-like surfaces generating air flow away from th... | 05/22/2007 |
| 7204445 | Guide arrangements for data storage tape guiding systems The invention is directed to arrangements of tape guides which can improve the guiding of data storage tape. Tape guides having specific sizes relative to the data storage tape are also disclosed. The disclosed tape guides and arrangements of tape guides can improve... | 04/17/2007 |
| 7204446 | Data storage tape guiding systems using tapered guides The invention is directed to arrangements of tapered data storage tape guides which can improve the guiding of data storage tape. Tapered data storage tape guides having specific sizes relative to the data storage tape are also disclosed. The tapered data storage ta... | 04/17/2007 |
| 7163175 | Irregular surfaced tape guide A tape guide that has textured surface over which the tape passes. The textured surface has a surface roughness exceeding the flying height of the tape above the surface. This new irregular surface topography reduces the air bearing and allows limited contact betwee... | 01/16/2007 |
| 7054100 | Magnetic tape recording/reproducing device and magnetic tape recording/reproducing system The present invention is to provide a magnetic tape recording/reproducing device capable of accurately positioning a magnetic tape relative to a magnetic head to thereby improve recording/reproduction characteristics to or from the magnetic tape even when the runnin... | 05/30/2006 |
| 6994293 | Tape drive transport roller A tape transport roller for a tape drive includes a roller body having a longitudinal axis and first and second grooves that each run obliquely to the axis. The grooves are configured to vent air disposed between the roller body and magnetic tape traveling across th... | 02/07/2006 |
| 6969021 | Variable curvature in tape guide rollers An apparatus is provided for reducing tape media edge damage in data regions and controlling the position of the tape media in a passive manner. A curved tape guide surface of a tape guide roller controls tape media edge damage by restoring the tape media to a prope... | 11/29/2005 |
| 6966522 | Irregular surfaced tape guide A tape guide that has textured surface over which the tape passes. The textured surface has a surface roughness exceeding the flying height of the tape above the surface. This new irregular surface topography reduces the air bearing and allows limited contact betwee... | 11/22/2005 |
| 6938851 | Tape path roller guide and method for making A tape path roller guide has a cylindrical guiding surface between two flanges. A plurality of continuous venting valleys in the guiding surface are wholly parallel to a central axis of the cylinder forming axial paddle-like surfaces generating air flow away from th... | 09/06/2005 |
| 6923396 | Recording tape cassette In order to provide a recording tape cassette in which a recording tape can run stably even if a non-recording surface side of the recording tape warps, there is provided a recording tape cassette including a guide shaft, around which the recording tape is wound suc... | 08/02/2005 |
| 6742739 | Magnetic tape cassette, guide roller, and a method of manufacturing a guide roller A magnetic tape cassette and a guide roller in which the magnetic tape can stably travel and the magnetic head can read/write the record correctly, and a method of manufacturing the guide roller are provided. The magnetic tape cassette of the present invention compr... | 06/01/2004 |
| 6736351 | Tape guide device for magnetic recording/reproducing apparatus A tape guide device for a magnetic recording/reproducing apparatus includes a pole base assembly to guide a tape supplied from a supply reel and passed through a predetermined path to be moved horizontally to a read surface of a head drum. The pole base assembly inc... | 05/18/2004 |
| 6722546 | Tape loading apparatus A tape loading apparatus comprises a base, a roller post about which a tape is wrapped for tape loading, and a carrying member for carrying the roller post. The roller post includes a rotation shaft and a roller rotating about the rotation shaft, and a shaft engagem... | 04/20/2004 |
| 6644581 | Flange guide for improved tape winding A winding flange guide (10) is utilized to provide a better quality wind of a strand media. The guide (10) has a first flange (12) and a second flange (13) which constrain the movement of the outer wraps of the tape pancake formed by the tape media. The w... | 11/11/2003 |
| 6634535 | Roller shaft A roller shaft (10) is provided which includes a shaft portion (12) of a substantially solid cylindrical shape and a flange portion (14) of a disk-like shape. The shaft portion (12) includes a hollow cylindrical portion (121) having a substantially hollow... | 10/21/2003 |
| 6607156 | Magnetic tape cassette A 2 reel type data storage magnetic tape cassette (20) is provided with reels (28, 30) around which a magnetic recording medium (26) is wound. The magnetic recording medium (26) includes a support, a non-magnetic layer comprising a non-magnetic powder and... | 08/19/2003 |
| 6595450 | Magnetic tape cassette, guide roller, and a method of manufacturing a guide roller A magnetic tape cassette and a guide roller in which the magnetic tape can stably travel and the magnetic head can read/write the record correctly, and a method of manufacturing the guide roller are provided. The magnetic tape cassette comprises a guide r... | 07/22/2003 |
| 6450438 | Apparatus and methods for forming a tape pack The invention includes apparatus and methods for forming a tape pack on a drum or the like in aligned formation. An apparatus in accordance with the present invention can include at least one alignment member. The tape pack, as it is formed, can be period... | 09/17/2002 |
| 6441990 | Compact tape drive having delayed in time first, second and third rotated tape guides for reading and writing data on single reel magnetic tape cartridges The present compact tape drive for reading and writing data on single reel magnetic tape cartridges that functions to implement the tape drive in a minimum predefined volume. The compact tape drive comprises a tape threading mechanism that extracts the le... | 08/27/2002 |
| 6419139 | Pinch roller bearing structure for magnetic tape apparatus A pinch roller is rotatably provided around a roller shaft by way of a bearing member and abutted against a capstan roller by way of a magnetic tape to rotatively drive the capstan roller, thereby causing the magnetic tape to run. The bearing member has a... | 07/16/2002 |
| 6357693 | Tape guide roll with an inner cylinder recessed from an outer cylinder at the ends A roll for a tape guide 8 and a method for manufacturing the tape guide roll. The tape guide roll 8 is molded by injecting a molding material into a pre-set cavity 22. The tape guide roll 8 is made up unitarily of an inner cylindrical portion 9, an outer ... | 03/19/2002 |
| 6027778 | One piece capstan for a tape cartridge The present invention provides a novel one-piece capstan for a tape cartridge which provides good static dissipative properties and wear resistance. The capstan material of the present invention has a charge decay time of no more than 5 seconds as measure... | 02/22/2000 |
| 6007013 | Winding aid for thin tapes in strip form A winding aid for thin tape strips on tape reels or hubs with or without flange(s) comprises a winding arm having a stationary winding surface and rotatable guiding surface(s) arranged adjacent and perpendicular thereto. This improves the quality of the r... | 12/28/1999 |
| 5957361 | Magnetic tape device having a tape guide which prevents excessive compressive force on a magnetic tape A magnetic tape device including a tape guide to guide a magnetic tape as the magnetic tape travels past a magnetic head to provide good contact between the magnetic tape and the magnetic head. The tape guide includes a roller guides, or roller guides and... | 09/28/1999 |
| 5833159 | Magnetic tape cartridge In a magnetic tape cartridge in which a guide roller for guiding the running trace of a magnetic tape is mounted on a cartridge body, a through hole is formed at a predetermined position in the cartridge body so that a center shaft of the guide roller is ... | 11/10/1998 |
| 5777831 | Tape cassette A tape cassette having upper and lower half members includes a tape guide formed of substantially cylindrical fixed and rotating members, the fixed member being fixed in the cassette by engagedly inserting bosses projecting from inner flat surfaces of the... | 07/07/1998 |
| 5769356 | Tape guide structure for use in a video cassette recorder A tape guide structure, for use in a video cassette recorder ("VCR") into which a tape cassette is loaded, comprises a guide post and a post cap. The guide post is provided with a lower cylindrical portion and an upper cylindrical portion with a diameter ... | 06/23/1998 |
| 5769357 | Tape guide roller assembly with impedance characteristics A guide roller assembly for use in a recorder fulfilling the functions of both a conventional guide roller assembly and a conventional impedance roller assembly comprises a stationary shaft tightly fitted into a bore hole prepared in a pole base, a lower ... | 06/23/1998 |
| 5755392 | Tape cartridge with reduced tangential drive force A belt-driven tape cartridge has tape spools rotatably mounted in the cartridge, and a belt drive assembly for driving the tape back and forth between the spools. The drive assembly includes three roller supporting pins, a driving roller rotatably mounted... | 05/26/1998 |
| 5702065 | Tape cartridge with reduced tangential drive force A belt-driven tape cartridge has tape spools rotatably mounted in the cartridge, and a belt drive assembly for driving the tape back and forth between the spools. The drive assembly includes three roller supporting pins, a driving roller rotatably mounted... | 12/30/1997 |
| 5690291 | Data storage device with baseplate for modified thrust surface drag A data storage device is provided with an area on the surface of the baseplate adjacent a thrust bearing surface of at least one rotating component of the device is modified to control interface friction between the component and the baseplate. The surfac... | 11/25/1997 |