Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making named article
Reexamination Certificate
2004-04-07
2009-12-15
Angebranndt, Martin J (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making named article
C430S320000, C101S028000
Reexamination Certificate
active
07632628
ABSTRACT:
The present invention relates to a stamper used for an injection molding of a resin material and a manufacturing method thereof. It is provided with such stamper as being excellent in durability in use without causing corrosion at a portion contacting with the resin material, wherein an anti-corrosion film made of any one of alloy selected from a nickel alloy, a silver alloy or a copper alloy is formed on a surface of the stamper contacting with the resin material. Further, it is provided with a method comprising steps of: forming anti-corrosion film on the surface of a mold for manufacturing the stamper; forming the stamper on the anti-corrosion film; and separating the stamper and the anti-corrosion film in a body from the mold.
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Iida Tetsuya
Katsumura Masahiro
Angebranndt Martin J
Drinker Biddle & Reath LLP
Pioneer Corporation
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