Method of manufacturing stamper, method of manufacturing...

Details Method of manufacturing stamper, method of manufacturing... Method of manufacturing stamper, method of manufacturing...

2009-05-05

2010-11-02

Heitbrink, Jill L (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Light polarizing article or holographic article

C264S219000, C425S810000, C430S320000

Reexamination Certificate

active

07824584

ABSTRACT:
A stamper manufacturing method comprises: forming a stamper body so as to have a concave/convex pattern on one surface and a crystalline structure on at least a side toward the other surface; forming a layer having an amorphous structure on the other surface side of the stamper body; and polishing a surface of the layer having the amorphous structure. A resin molded article manufacturing method includes an injection molding process using the stamper as a prototype so as to transfer the concave/convex pattern of the stamper to a resin material. A stamper comprises a stamper body which is formed so as to have a concave/convex pattern on one surface and have a crystalline structure on at least a side toward the other surface. In the stamper, a layer having an amorphous structure and a surface of which is polished is formed on the other surface side of the stamper body.

REFERENCES:
patent: 2530842 (1950-11-01), Ruggieri
patent: 5335526 (1994-08-01), Garrison et al.
patent: 5783371 (1998-07-01), Bifano
patent: 6190838 (2001-02-01), Kerfeld
patent: 6616867 (2003-09-01), Kerfeld
patent: 2005/0118534 (2005-06-01), Oyake et al.
patent: 2005/0138803 (2005-06-01), Okawa et al.
patent: 2002-92984 (2002-03-01), None

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