Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD OF MANUFACTURING MULTILAYER OPTICAL RECORDING MEDIUM AND MULTILAYER OPTICAL RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2003/032306
Kind Code:
A1
Abstract:
A method of manufacturing a multilayer optical recording medium comprising two recording layers stacked, through a spacer layer, on a base material (D1) having an installation center hole (1a) formed thereon, comprising the steps of, when the spacer layer is formed between a second recording layer (L1) and a first recording layer, forming a fitting projected part (D1a) allowed to fit to a fitting groove part (21b) formed in a stamper (21) for forming the first recording layer around the installation center hole (1a), fixing the base material (D1) to a turn table (12) with the center pin (12c) of the turn table (12) inserted into the installation center hole (1a), dripping application liquid (R) onto the base material (D1) at a specified position nearer to the outer peripheral part of the fitting projected part (D1a), placing the stamper (21) on the base material (D1) while fitting the fitting groove part (21b) to the fitting projected part (D1a), and rotating the turn table (12) to spin−coat the application liquid (R), whereby the spacer layer can be formed without decentering each recording layer.

Inventors:
KOMAKI TSUYOSHI (JP)
YAMAGA KENJI (JP)
Application Number:
PCT/JP2002/010309
Publication Date:
April 17, 2003
Filing Date:
October 02, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TDK CORP (JP)
KOMAKI TSUYOSHI (JP)
YAMAGA KENJI (JP)
International Classes:
B29C41/04; B29C43/02; B29C43/36; B29D17/00; G11B7/24021; G11B7/24038; G11B7/2405; G11B7/26; B29C35/08; (IPC1-7): G11B7/26
Foreign References:
JPH09161329A1997-06-20
JPH11232700A1999-08-27
JPH09115191A1997-05-02
JPH08263874A1996-10-11
JPH07334866A1995-12-22
JPH0244542A1990-02-14
JPH02223030A1990-09-05
JP2001126322A2001-05-11
Other References:
See also references of EP 1443508A4
Attorney, Agent or Firm:
Sakai, Shinji (Higashiterao Matsushiro-machi Nagano-shi, Nagano, JP)
Download PDF: