Recording tape cassette

Details Recording tape cassette Recording tape cassette

2005-01-04

2005-01-04

Rivera, William A. (Department: 3654)

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

C242S610000

Reexamination Certificate

active

06837454

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.

REFERENCES:
patent: 4482104 (1984-11-01), Saito
patent: 5383077 (1995-01-01), Sato et al.
patent: 5479311 (1995-12-01), Doushita et al.
patent: 5914840 (1999-06-01), Kawakami et al.
patent: 5976668 (1999-11-01), Chiba et al.
patent: 6607156 (2003-08-01), Murao et al.
patent: 6622952 (2003-09-01), Onmori et al.
patent: 6688546 (2004-02-01), Onmori et al.
patent: 10-269743 (1998-10-01), None
patent: 2000-48529 (2000-02-01), None

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