| Patents for B29D 17 - Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback or cylinder records; Producing record discs from master stencils (1,284) |
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| 07/26/1983 | US4395211 Method and device for manufacturing a plastic record carrier |
| 06/28/1983 | US4390487 Plastic such as polyvinyl chloride mixed with carbon black |
| 06/28/1983 | CA1149060A1 Multilayer information disc |
| 05/25/1983 | EP0079860A1 Matrix surface for precision moulding or pressing plastics material, in particular for information carrying discs, and method of coating this surface |
| 05/18/1983 | EP0079262A1 Method of making disc copies from an original recording on a matrix |
| 05/17/1983 | US4383961 Spraying with fluorocarbon |
| 04/20/1983 | EP0077241A1 Process for removing an information carrying disc from the mould, and apparatus for carrying out the process |
| 04/13/1983 | EP0076569A1 Electroplating arrangements |
| 04/12/1983 | CA1144483A1 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 03/29/1983 | CA1143517A1 Apparatus for producing centrally apertured record discs |
| 03/22/1983 | CA1143476A1 Optically readable information disk, method of manufacturing same and device for performing the method |
| 03/15/1983 | CA1142719A1 Method of producing plate-shaped body |
| 02/23/1983 | EP0072378A1 Method relating to disc forming |
| 02/15/1983 | US4374077 Photopolymerization of a deaerated bead spread between a patterned surface and a bondable surface; television; audio devices |
| 01/26/1983 | EP0070514A2 A method for manufacturing an information memory disk |
| 12/21/1982 | US4364970 Wear resistance, antistatic |
| 12/15/1982 | EP0066650A2 Hot sprue assembly for an injection molding machine |
| 12/14/1982 | US4363844 Base with electroconductive or electromagnetic reflective layer with depressions and insulating, transparent protective cover |
| 10/19/1982 | US4354988 Process for making video discs |
| 09/14/1982 | US4349499 Bonding a plastic foil to the unmodulated face of the stamper plate |
| 08/03/1982 | US4342714 Applying organometallic compound |
| 06/22/1982 | US4336112 Method of manufacturing moulds for disc-shaped record carriers, and moulds manufactured by means of such a method |
| 06/01/1982 | CA1124468A2 Method and means for replicating centrally apertured video disc records |
| 04/27/1982 | US4327047 Using recessed center pin in mold |
| 04/01/1982 | WO1982001098A1 Metallized information carrying discs |
| 03/17/1982 | EP0047387A1 Process for manufacturing optically readable information carriers |
| 03/09/1982 | US4318877 Video disc molding process |
| 02/23/1982 | CA1118571A1 Method and apparatus for forming expanded panels |
| 02/16/1982 | US4315878 Low quality core |
| 02/16/1982 | US4315723 Device for molding information-carrying disks |
| 02/03/1982 | EP0044907A2 Information optically readable storing discs and method for their manufacuture |
| 01/27/1982 | EP0044608A1 Improvements relating to flash trimming of disc records |
| 01/27/1982 | EP0044345A1 Process for making video and similar discs. |
| 01/26/1982 | US4312823 Method of manufacturing a plastic record carrier having a stratified structure |
| 01/08/1982 | EP0044345A4 Process for making video and similar discs. |
| 11/24/1981 | US4302411 Method of producing plate-shaped body |
| 11/24/1981 | US4302307 Method for the improvement of gramophone records |
| 11/17/1981 | US4301099 Method and device for manufacturing a plastics record carrier |
| 11/17/1981 | CA1112408A1 Process for producing information carrying discs |
| 10/27/1981 | CA1111214A1 Method and apparatus for injection molding data- carrying elements |
| 10/13/1981 | US4294782 Method for substantially instantaneous liquid molding of an article |
| 09/08/1981 | US4288481 Foil video discs |
| 09/08/1981 | CA1108362A1 Process for making a record |
| 08/11/1981 | CA1106560A1 Method of manufacturing a plastics record carrier having a stratified structure as well as a device for carrying out the method |
| 08/06/1981 | WO1981002236A1 Process for making discs |
| 08/04/1981 | US4281816 Automatic apparatus for molding a preform |
| 07/23/1981 | WO1981001981A1 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 07/22/1981 | EP0032452A2 Manufacture of blanks for recording discs utilizing coextrusion and blanks and records made thereby |
| 07/15/1981 | EP0032005A1 Improvements in or relating to disc record preparation |
| 06/16/1981 | CA1102973A1 Method and means for replicating centrally apertured video disc records |
| 04/21/1981 | US4262875 Information record stampers |
| 03/18/1981 | EP0025387A1 Apparatus for moulding information carrying discs |
| 02/10/1981 | US4249876 Control of plastics extrusion |
| 01/07/1981 | EP0021705A1 Audio and video discs and a method of manufacture thereof |
| 11/25/1980 | US4235136 Trimming disc records |
| 11/04/1980 | US4231730 Moulding video discs |
| 10/29/1980 | EP0018210A1 Moulding apparatus for record discs |
| 09/17/1980 | EP0015834A1 Method and apparatus for the manufacture of video records |
| 08/26/1980 | US4219321 Device for making discs |
| 01/22/1980 | CA1070261A1 Process for producing a stamper for videodisc purposes |
| 11/13/1979 | CA1066411A1 Video disc and method of making the same |
| 08/14/1979 | US4164754 Method of manufacturing a die designed to duplicate a video frequency signal recording |
| 07/24/1979 | CA1058816A1 Die-pressing device for the manufacture of records |
| 06/12/1979 | US4157931 Process for producing information carrying discs |
| 05/16/1979 | EP0001896A1 Trimming disc records |
| 02/27/1979 | US4141531 Disc record press |
| 12/19/1978 | US4130620 Photoresist |
| 11/07/1978 | US4124672 Replication utilizing a casting process |
| 10/31/1978 | CA1041256A1 Phonograph record pressing die assembly |
| 10/03/1978 | US4118287 Method for making a metal master for producing a gramophone record |
| 09/26/1978 | CA1039012A1 Arrangement in moulding presses with parted press tools for the production of hot-pressed plastic material products, especially grammophone records |
| 09/12/1978 | US4113909 Method for forming expanded panels from thermoformable material and the resultant product |
| 09/05/1978 | US4112030 Method and system for the production of sheet or platter shaped information carriers |
| 09/05/1978 | CA1038095A1 Moulding compound on the basis of copolymers of vinyl chloride |
| 07/26/1977 | US4038009 Apparatus for the manufacture of disc records |
| 06/28/1977 | US4032610 Manufacture of contoured records |
| 04/19/1977 | US4018552 Pressing block for die pressing thermoplastic material |
| 02/01/1977 | US4005965 Record producing apparatus |
| 05/11/1976 | US3956075 Fabrication of foil disc pressing matrices |
| 03/23/1976 | US3945790 Pressing device for manufacturing of storage substrates |
| 03/09/1976 | US3943302 Electron beam recording in thick materials |
| 03/02/1976 | US3941547 Phonograph record pressing die assembly |
| 02/17/1976 | US3938810 Center hole formation in an information storing disc |
| 01/13/1976 | US3932087 Arrangement in moulding presses with parted press tools for the production of hot-pressed plastic material products, especially grammophone records |