Tape cassette

Details Tape cassette Tape cassette

1997-09-15

1999-08-03

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2302

Patent

active

059333022

ABSTRACT:
A tape cassette having a lock member which locks the tape in a reel wherein the lock member is formed from polyolefin resin having bending elastic modulus not smaller than 10,000 kg/cm.sup.2, and hardness not larger than 120 in the R scale of Rockwell hardness. Examples of such polyolefin resin satisfying the above values of solid state properties include polypropylene resin and polyethylene resin.

REFERENCES:
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patent: 4360173 (1982-11-01), Shoji
patent: 4631619 (1986-12-01), Hashizume et al.
patent: 4865265 (1989-09-01), Hashizume et al.
patent: 4930714 (1990-06-01), Hashizume et al.
patent: 4973012 (1990-11-01), Hashizume et al.
patent: 5107386 (1992-04-01), Hashizume et al.
patent: 5379960 (1995-01-01), Kaneda et al.
patent: 5626305 (1997-05-01), Hashizume et al.

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