Title:
スタンパ、物品およびそれらの製造方法
Document Type and Number:
Japanese Patent JP5798490
Kind Code:
B2
Abstract:
The invention relates to a stamper in which an oxide film having a fine concave-convex structure made up of a plurality of fine pores having an aspect ratio represented by [the depth of the fine pores/the average interval between the fine pores] of 1 to 4 is formed on the surface of an aluminum base material which is made of aluminum having a content of Ti of 150 ppm to 500 ppm, a content of B or C of 1 ppm to 50 ppm and a purity of 99.9% or more. According to the invention, it is possible to provide a low-cost stamper in which the emergence of a pattern derived from the traces of crystal grains on the surface of the oxide film is suppressed, an article having a favorable appearance, which is manufactured using the above stamper, and a method for manufacturing the above.
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Inventors:
Hiroaki Kita
Kota Shirai
Katsuhiro Kojima
Kota Shirai
Katsuhiro Kojima
Application Number:
JP2011545963A
Publication Date:
October 21, 2015
Filing Date:
September 28, 2011
Export Citation:
Assignee:
NIPPON LIGHT METAL COMPANY,LTD.
Mitsubishi Rayon Co., Ltd.
Mitsubishi Rayon Co., Ltd.
International Classes:
B29C33/38; B29C33/42; B29C59/02; C22C21/00; C22F1/00; C22F1/04; G02B1/10; G11B5/84; H01L21/027
Domestic Patent References:
| JP2010222629A | 2010-10-07 | |||
| JP4531131B1 | 2010-08-25 | |||
| JP2003342658A | 2003-12-03 | |||
| JPS4929244A | 1974-03-15 | |||
| JP2010005841A | 2010-01-14 |
Foreign References:
| WO2008001847A1 | 2008-01-03 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi
Kazuya Nishi
Tadashi Takahashi
Suzuki Mitsuyoshi
Kazuya Nishi