Stamper holder, mold component, and mold assembly

Details Stamper holder, mold component, and mold assembly Stamper holder, mold component, and mold assembly

2007-03-06

2007-03-06

Heckenberg, Donald (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

C425S542000, C425S810000

Reexamination Certificate

active

10806179

ABSTRACT:
A stamper holder capable molding of a substrate having a high-quality. The stamper holder is mounted in a mold of a mold assembly that molds a substrate for an information recording medium, together with a stamper having a molding surface for forming micro asperities in a surface of the substrate, in a state where the stamper is fitted in an insertion hole formed through a central portion of the stamper. The stamper holder is formed such that an outer periphery thereof is increased in diameter on a side toward the molding surface compared with a reverse side thereof to form a sloped surface, and part or all of an outer peripheral surface of the stamper holder opposed to an inner peripheral surface of the stamper defining the insertion hole has a shape complementary to the inner peripheral surface of the stamper.

REFERENCES:
patent: 4302175 (1981-11-01), McNeely
patent: 4472124 (1984-09-01), Kashihara et al.
patent: 2003/0194464 (2003-10-01), Iida et al.
patent: 2004/0228940 (2004-11-01), Ebina
patent: 9-123229 (1997-05-01), None
patent: 09293279 (1997-11-01), None
patent: 10-302328 (1998-11-01), None
English abstract and computer translation for JP 10-302328.
English Language Abstract of JP 9-123229.
English Language Abstract of JP09-293279.

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