Mold for molding of substrate for information recording medium

Details Mold for molding of substrate for information recording medium Mold for molding of substrate for information recording medium

1992-09-04

1994-09-06

Bushey, Charles S.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For press shaping surface

249103, 249120, 249163, 264106, 425810, B29C 3330

Patent

active

053443047

ABSTRACT:
A mold for molding a plurality of substrates for an information recording medium includes a fixing member, a plurality of units fixed to the fixing member, and a molding cavity. Each of the units has a preformat pattern with a surface corresponding to information recording medium formed on its surface, and the molding cavity is disposed opposite to the units so that the preformat patterns face the molding cavity.

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patent: 4435343 (1984-03-01), Ando et al.
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patent: 4519767 (1985-05-01), Westerman
patent: 4670077 (1987-06-01), Peeters
patent: 4783041 (1988-11-01), Sakaida et al.
patent: 4828769 (1989-09-01), Maus et al.

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