| Patents for B29L 17 - Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records (579) |
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| 09/03/1996 | US5552009 Stampers |
| 09/03/1996 | US5551625 Method of manufacturing a molding member and molding member which can be manufactured by means of the method |
| 08/13/1996 | US5545365 Method for molding a disc with a central aperture |
| 07/24/1996 | EP0722818A2 Disc molding die |
| 07/16/1996 | US5536456 Optical disc and method for making |
| 06/05/1996 | EP0714746A2 Disc injection mold apparatus having mold opening guide means |
| 05/29/1996 | EP0713444A1 Device for producing moulded bodies and process for producing said device |
| 05/15/1996 | EP0477372B1 Transfer method |
| 03/26/1996 | US5501592 Mold having opposed offset cooling channels |
| 03/12/1996 | US5498445 Manufacturing process for grooved substrates and multilayer structure |
| 01/16/1996 | US5484324 Stamper for injection molding |
| 01/02/1996 | US5480763 Method for manufacturing a stamper for high-density recording discs |
| 12/19/1995 | US5476700 Disc base and mold for molding the disc base |
| 12/05/1995 | US5472334 Injection molding die for injection-molding base boards |
| 11/21/1995 | US5468324 Spin-on and peel polymer film method of data recording duplication and micro-structure fabrication |
| 11/14/1995 | US5466319 Method for making optically readable media containing embossed information |
| 11/14/1995 | US5466145 Disc base board molding die including stamper plate attaching/detaching device |
| 11/07/1995 | US5464339 Molding dye for disk substrate |
| 10/17/1995 | US5458818 Insulated mold structure for injection molding of optical disks |
| 09/27/1995 | CN1108994A Injection mold |
| 09/19/1995 | US5451155 Installation for manufacturing registration carriers |
| 08/16/1995 | EP0556266B1 Injection mould |
| 06/28/1995 | EP0659533A1 Injection mold |
| 06/28/1995 | CN1029095C Method and apparatus for molding articles |
| 06/27/1995 | US5427833 Magneto-optical recording medium and method for processing the surface |
| 05/23/1995 | US5417899 Injection compression molding method for compact discs or the like |
| 03/28/1995 | US5401158 Apparatus for automatically exchanging a stamper unit with another one |
| 03/07/1995 | US5394599 Method for automatically exchanging a stamper unit with another one |
| 03/01/1995 | EP0640458A1 Insulated mold structure for injection molding of optical disks |
| 02/14/1995 | US5388982 Injection molding die mounted on an injection molding machine for molding optical disc base boards |
| 02/09/1995 | WO1995003928A1 Device for producing moulded bodies and process for producing said device |
| 02/09/1995 | CA2168267A1 Device for the production of mouldings and process for the production of such a device |
| 01/25/1995 | CN1097890A Master disks for making dies for pressing in particular optical disks and their methods of manufacture as well as the pressing dies obtained from the master disks and optical disks obtained...... |
| 10/20/1994 | DE4410015A1 Injection mould |
| 09/07/1994 | EP0613413A1 Process and device for mechanically removing a layer from the substrate material of a disk-shaped information carrier. |
| 08/23/1994 | US5340528 Injection/compression molding method, a die for injection/compression molding and an injection/compression molding machine |
| 08/10/1994 | EP0610125A1 Master disks for producing dies, particularly for optical disks, and their method of manufacture |
| 07/19/1994 | US5330880 Process for producing optical disks |
| 07/12/1994 | US5328740 Magneto-optical recording medium and method for processing the surface |
| 07/06/1994 | EP0605025A1 Injection moulding or injection-compression moulding machine |
| 06/28/1994 | US5324190 Injection mould for manufacturing disc-shaped plastic articles |
| 06/14/1994 | US5320876 Patterns from stamper to uv curable resin on base plate; optical recording media |
| 06/01/1994 | EP0599406A1 Injection moulding or injection compression moulding machine |
| 06/01/1994 | DE4239776A1 Injection or injection compression machine for prodn. of information=carrying discs - has two or more adjacent tools each supplied with polymer from separate injection units |
| 03/01/1994 | WO1994006608A1 Process and device for mechanically removing a layer from the substrate material of a disk-shaped information carrier |
| 03/01/1994 | CA1327261C Injection molding machine |
| 02/16/1994 | CN1082234A An installation for manufacturing registration carriers |
| 02/08/1994 | US5284435 Apparatus for manufacturing a disc-shaped information carrier |
| 01/25/1994 | US5281371 Method and apparatus for forming substrate sheet for optical recording medium |
| 01/05/1994 | EP0577169A1 An installation for manufacturing registration carriers |
| 11/03/1993 | EP0567682A1 Multi-cavity injection molding apparatus for optical disk substrates |
| 09/22/1993 | EP0561393A1 Method and apparatus for automatically exchanging a stamper unit with another one |
| 09/07/1993 | US5242630 During pressing a pressure body of specified characteristics is interposed between pressure member and an element |
| 08/31/1993 | CA1321690C Injection molding die apparatus for use in the production of substrate of optical disk |
| 08/25/1993 | EP0556266A1 Injection mould. |
| 08/25/1993 | CN1021939C Method for making optically readable media containing embossed information |
| 08/24/1993 | US5238393 Multi-cavity injection molding apparatus for optical disk substrates |
| 07/21/1993 | EP0551869A1 Method of and apparatus for producing disc subtrate |
| 05/26/1993 | CN1072369A 注射模具 Injection mold |
| 05/12/1993 | EP0540843A1 Process for producing optical disks |
| 01/21/1993 | DE4123199A1 Mechanical removal of surface layers from compact disc base - using tool that is moved across surface of disc securely held in carrier with depth of cut equal to layer thickness |
| 12/29/1992 | US5175030 Microstructure-bearing composite plastic articles and method of making |
| 11/10/1992 | CA1309816C Mold for molding optical disk base |
| 09/22/1992 | US5149607 Matrix |
| 09/15/1992 | US5147592 Process of and apparatus for preparing optical recording medium substrates |
| 09/15/1992 | CA1307376C Magneto-optic substrates and recording method and machine for moldingsuch substrates |
| 09/02/1992 | EP0501569A1 Method of manufacturing an object having a surface structure and arrangement for carrying out the method |
| 07/28/1992 | US5133824 Method and device for removing a flexible product from a carrier plate |
| 05/29/1992 | WO1992008597A1 Injection mould |
| 05/10/1992 | CA2095011A1 Injection mould |
| 04/07/1992 | US5102608 Method for the manufacture of objects from polycarbonate |
| 04/01/1992 | EP0477372A1 Transfer method |
| 03/03/1992 | US5092759 Injection molding assembly for producing disk-shaped information carriers and sleeve for the axial retention and radial centering of a matrix |
| 03/03/1992 | US5092758 Disc molding apparatus |
| 02/19/1992 | EP0471109A1 Manufacturing process for grooved substrates and multilayer structure |
| 02/18/1992 | CA2049261A1 Manufacturing process for grooved substrates and multilayer structure |
| 01/22/1992 | EP0467393A2 Sprue-less metal mold for molding disks |
| 01/07/1992 | US5078947 Pressing stamped pattern into plastics; radiation with ultraviolet light |
| 09/04/1991 | EP0444367A1 A stamper for injection molding |
| 08/14/1991 | EP0441611A1 Magneto-optical recording medium and method for processing the surface |
| 08/08/1991 | WO1991011805A1 Transfer apparatus and transfer method |
| 08/07/1991 | EP0439870A1 Method for the manufacture of carriers for optically readable information from polycarbonate |
| 07/04/1991 | CA2033470A1 Method for the manufacture of objects from polycarbonate |
| 07/03/1991 | EP0434957A1 Ring for axial thrust blocking and radial centering of the matrix in an injection moulding apparatus |
| 06/19/1991 | EP0432832A1 Method and device for removing a flexible product from a carrier plate |
| 05/28/1991 | US5018962 Injection molding die apparatus for use in the production of substrate of optical disk |
| 05/28/1991 | CA2030471A1 Injection molding assembly for producing disk-shaped information carriers and sleeve for the axial retention and radial centering of a matrix therefor |
| 05/08/1991 | EP0426129A2 Injection compression molding method for compact discs or the like |
| 04/09/1991 | US5006058 Apparatus for injection molding information recording disks |
| 03/26/1991 | US5002706 Magnetic-optical recording disks formed by injection molding |
| 03/20/1991 | CN1050105A Method for making optically readable media containing embossed information |
| 02/26/1991 | US4995799 Optical disc manufacturing apparatus |
| 02/19/1991 | US4994228 Method for releasing molded synthetic resin products from a mold |
| 01/22/1991 | US4986938 Compression of injection molded polycarbonate before solidification of interior |
| 01/02/1991 | EP0405582A2 Method for making optically readable media containing embossed information |
| 12/25/1990 | US4979891 Mold for molding optical disk base |
| 11/20/1990 | US4971548 Injection molding halves for disks |
| 10/09/1990 | US4961884 Stamps, projections, grooves, injection molding, resins, air, pressurization |
| 09/05/1990 | CN1045058A Apparatus for molding articles |
| 08/16/1990 | EP0382420A2 Microstructure-bearing composite plastic articles and method of making |