Title:
OPTICAL DISK MOLDS
Document Type and Number:
Japanese Patent JPH07241891
Kind Code:
A
Abstract:
PURPOSE: To provide optical disk molds which can be applied to an existing optical disk molding machine and in which thickness of disks can be made uniform.
CONSTITUTION: A core 14 which is hydraulically operated and in which an insert 11 is advanced or retracted is provided in optical disk molds 10 mounted at a movable side platen of an optical disk molding machine, and resin filled in a cavity 30 is pressurized and compressed.
Inventors:
KOMIYAMA TAKESHI
TAKAGI TOSHIYUKI
TAKAGI TOSHIYUKI
Application Number:
JP3174694A
Publication Date:
September 19, 1995
Filing Date:
March 02, 1994
Export Citation:
Assignee:
TOSHIBA EMI KK
TOSHIBA MACHINE CO LTD
TOSHIBA MACHINE CO LTD
International Classes:
B29C45/26; B29C45/56; B29D17/00; G11B7/26; B29L17/00; (IPC1-7): B29C45/56; B29C45/26; B29D17/00; G11B7/26
Attorney, Agent or Firm:
Hideo Takino (1 outside)
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