JPS56167421A - Manufacturing device for high-density information recording carrier - Google Patents
Manufacturing device for high-density information recording carrierInfo
- Publication number
- JPS56167421A JPS56167421A JP7297180A JP7297180A JPS56167421A JP S56167421 A JPS56167421 A JP S56167421A JP 7297180 A JP7297180 A JP 7297180A JP 7297180 A JP7297180 A JP 7297180A JP S56167421 A JPS56167421 A JP S56167421A
- Authority
- JP
- Japan
- Prior art keywords
- cope
- drag
- ultraviolet rays
- information recording
- manufacturing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To obtain the titled device, in which an elastic plastic layer transmitting ultraviolet rays is mounted to a lower surface of a cope, the cope is fast stuck to a drag and molding space is made up, and a stamper and the cope are fast stuck completely and which builds up no burr.
CONSTITUTION: An elastic plastic layer 18 transmitting ultraviolet rays is mounted to a lower surface (a surface facing to a drag 1 each other) of a cope 11 formed by a blank transmitting ultraviolet rays. A stamper 31 is installed to the drag 1, and the cope 11 is contracted by proper pressure and fast stuck completely. Burr is not made up to an outer circumference and a central section of a disc injected and molded, and the accuracy of a location of the center does not deteriorate when regenerating the disc and the stability of a picture is not damaged.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7297180A JPS56167421A (en) | 1980-05-30 | 1980-05-30 | Manufacturing device for high-density information recording carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7297180A JPS56167421A (en) | 1980-05-30 | 1980-05-30 | Manufacturing device for high-density information recording carrier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56167421A true JPS56167421A (en) | 1981-12-23 |
JPH0123842B2 JPH0123842B2 (en) | 1989-05-09 |
Family
ID=13504775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7297180A Granted JPS56167421A (en) | 1980-05-30 | 1980-05-30 | Manufacturing device for high-density information recording carrier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56167421A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58162320A (en) * | 1982-03-23 | 1983-09-27 | Hitachi Ltd | Duplicator of disk |
US5169571A (en) * | 1991-04-16 | 1992-12-08 | The C.A. Lawton Company | Mat forming process and apparatus |
-
1980
- 1980-05-30 JP JP7297180A patent/JPS56167421A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58162320A (en) * | 1982-03-23 | 1983-09-27 | Hitachi Ltd | Duplicator of disk |
JPH0577497B2 (en) * | 1982-03-23 | 1993-10-26 | Hitachi Ltd | |
US5169571A (en) * | 1991-04-16 | 1992-12-08 | The C.A. Lawton Company | Mat forming process and apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0123842B2 (en) | 1989-05-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ZA775429B (en) | Method of duplicating plastics information carriers,as well as a moulding resin,substrate and die used in said method | |
GR3002347T3 (en) | Solid polymeric substrate for optical discs, and optical discs manufactured from said substrate | |
EP0376569A3 (en) | A tape cassette reel having an upper reel moulded by dichromatic moulding process | |
EP0339616A3 (en) | Apparatus for manufacturing optical information recording medium | |
ES510672A0 (en) | "A PLAYER APPARATUS FOR INFORMATION SIGNALS REGISTERED IN A RECORD CARRIER IN THE FORM OF A TAPE". | |
EP0275100A3 (en) | Recording media for ink | |
JPS5363002A (en) | Signal recording system and disk type medium for recording signal | |
EP0137246A3 (en) | Metal mold and stamper for injection molding of a plastic disc for a high-density information recording carrier | |
JPS56167421A (en) | Manufacturing device for high-density information recording carrier | |
EP0262863A3 (en) | Mold assembly of injection-moulding machine | |
EP0338906A3 (en) | Method for molding a formatted substrate for an optical disk and a mold assembly used in the method | |
EP0096374A3 (en) | Method for optically encoding digital data on a substrate and the data record carrier formed thereby | |
CA2041680A1 (en) | Magneto-optical disk and method of manufacturing the same | |
JPS56163536A (en) | Recording medium | |
JPS6079540A (en) | Optical recording medium | |
EP0443522A3 (en) | Optical information recording medium | |
US5851620A (en) | Disc metal mold and recorded disc | |
ES509322A0 (en) | "A REPRODUCTION DEVICE FOR INFORMATION SIGNALS REGISTERED IN A RECORD CARRIER IN THE FORM OF A TAPE". | |
JPS53107314A (en) | Magnetic recording medium | |
GB1477011A (en) | Tone arms for gramophone records players | |
JPS56167419A (en) | Manufacturing device for high-density information recording carrier | |
JPS52142756A (en) | Nitrocellulose and magnetic recording media | |
JPS56167420A (en) | Manufacturing device for high-density information recording carrier | |
MY137732A (en) | Method of drying thermoplastic norbornene resin and method of manufacturing magnetic recording medium | |
JPS56106829A (en) | Manufacture of disc |