Tape cassettes.

摘要

A tape cassette comprising upper and lower halves secured to each other to define a space containing a pair of tape reels. The upper half is formed in its surface with a depression. The upper half is provided with a window opening above one of the tape reels. A transparent window plate is provided on the upper half. The window plate is made through a molding process using a gate to spout a fused transparent synthetic resin into a molding cavity. The transparent window plate has a first portion covering the window opening and a second portion extending a substantial length from the first portion over the depression. The window plate second portion has a gate mark made thereon after the molding process. The gate mark is hidden under a label sticked on the depression.