Recording tape cassette
US6837454B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2003 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording tape cassette capable of allowing a thin recording tape to run properly. At this recording tape cassette, a pair of reels which include lower flanges and upper flanges at vertical ends of reel hubs are each rotatably accommodated in a case. The reels cause a magnetic tape to run while winding from one reel and winding onto the other reel. At least one of the lower flange and upper flange of each reel, which contacts the running magnetic tape, are formed by resin-molding using a resin material whose surface electrical resistance value is 1×1013Ω or less, and is resistant to static charging. Consequently, a thin magnetic tape whose thickness is less than 13 μm runs suitably without being drawn toward the lower flanges or the like by electrostatic force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.