Roll-shaped mold for information recording medium

Details Roll-shaped mold for information recording medium Roll-shaped mold for information recording medium

1995-06-05

1996-11-19

Mackey, James P.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

2491141, 264 16, 425327, 425363, B29C 4346, B29D 1100

Patent

active

055759610

ABSTRACT:
A roll-shaped mold for forming an information recording medium has a pattern forming layer formed into a film on a roll-shaped mold substrate and having a pattern for formation of a groove for a track on a resin substrate for the information recording medium by heat molding on the circumferential wall of the pattern forming layer.

REFERENCES:
patent: 1996057 (1935-04-01), Buckle
patent: 3752731 (1973-08-01), Stiegler et al.
patent: 3756760 (1973-09-01), McBride
patent: 4407880 (1983-10-01), Terao et al.
patent: 4565772 (1986-01-01), Takeoka et al.
patent: 4723903 (1988-02-01), Okazaki et al.
patent: 4790893 (1988-12-01), Watkins
patent: 4810547 (1989-03-01), Mirami
patent: 4836874 (1989-06-01), Foster

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