Title:
【発明の名称】ディスク基板製造装置
Document Type and Number:
Japanese Patent JP2822251
Kind Code:
B2
Abstract:
A disc base plate transfer device for duplication of the disc base plate (7) by transferring a pattern of projections and recesses on a stamper (10) onto a layer of a photopolymerization curable synthetic resin provided on a disc base plate (7) is disclosed. Air blowouts (62, 63) are formed in a centering pin (18) adapted for peeling the disc base plate (7) from the stamper (10) after the pattern on the stamper (10) has been transferred to the layer of the synthetic resin by photopolymerization curing of the resin. In this manner, dust and dirt may be prevented from remaining on the stamper (10) during peeling of the disc base plate (7), while the peeling of the disc base plate (7) from the stamper (10) is facilitated to prevent destruction of the disc base plate (7).
Inventors:
Yoshikazu Anesaki
Koji Sasaki
Hidetoshi Watanabe
Suzuki Koji
Koji Sasaki
Hidetoshi Watanabe
Suzuki Koji
Application Number:
JP1883190A
Publication Date:
November 11, 1998
Filing Date:
January 31, 1990
Export Citation:
Assignee:
ソニー株式会社
International Classes:
B29C43/02; B29C43/18; B29C43/36; B29C43/50; B29C43/52; B29D17/00; G11B7/26; G11B11/10; G11B11/105; B29C33/04; B29C35/08; B29L17/00; (IPC1-7): G11B7/26; B29C43/50; G11B11/10
Domestic Patent References:
| JP1276449A | ||||
| JP62181117A | ||||
| JP63131352A | ||||
| JP1101128A | ||||
| JP61151854A | ||||
| JP2175138A |
Attorney, Agent or Firm:
Akira Koike (2 outside)