| 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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| 10/07/1992 | EP0507600A1 Roll stamper and apparatus for forming a substrate for information recording medium |
| 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 |
| 08/11/1992 | US5137661 Process for producing optical recording medium |
| 07/28/1992 | US5133824 Method and device for removing a flexible product from a carrier plate |
| 07/22/1992 | EP0288580B1 Method of manufacturing a flexible optical information recording medium |
| 07/21/1992 | US5131995 Method of manufacturing titanium magnetic disk substrate |
| 06/30/1992 | US5126996 Optical information record carrier and the method of producing the same |
| 06/16/1992 | US5122313 Mold for forming substrate having uneven preformat pattern and method of using same |
| 06/03/1992 | EP0488166A2 Embossing metal mold and manufacturing method thereof |
| 05/27/1992 | EP0487138A2 Method of manufacturing an optically readable disc, and arrangement for carrying out the method |
| 04/22/1992 | EP0481753A2 Molding roll, method for manufacturing it, and apparatus for forming substrate sheet for optical recording medium |
| 04/21/1992 | US5106553 Method for molding a formatted substrate for an optical disk |
| 04/07/1992 | US5102608 Method for the manufacture of objects from polycarbonate |
| 04/01/1992 | EP0478372A1 Molding roll for molding substrate sheet for optical recording medium, apparatus for forming substrate sheet for optical recording medium, method for forming substrate sheet for optical recording medium, and optical recording medium formed thereby |
| 04/01/1992 | EP0477372A1 Transfer method |
| 03/17/1992 | US5096563 Method of manufacturing optical disk |
| 03/17/1992 | US5096401 Apparatus for producing a substrate sheet for optical recording media |
| 02/19/1992 | EP0471109A1 Manufacturing process for grooved substrates and multilayer structure |
| 02/18/1992 | CA2049261A1 Manufacturing process for grooved substrates and multilayer structure |
| 02/04/1992 | US5085723 Process and apparatus for producing magnetic diskette |
| 01/07/1992 | US5078947 Pressing stamped pattern into plastics; radiation with ultraviolet light |
| 12/24/1991 | US5075060 Melt extrusion, pressurizrd passing between rollers, transferring pattern |
| 12/10/1991 | US5071673 Method for producing optical disc |
| 11/13/1991 | CN1014751B Process for producing information recording discs |
| 10/02/1991 | EP0449462A2 Roll stamper for moulding substrate sheet for information recording mediums, procedure for preparation of the same, and procedure for producing substrate sheets for information recording mediums |
| 09/17/1991 | US5048745 Roll stamper for molding substrate used for optical recording medium, process for preparing same, and process for preparing optical recording medium making use of it |
| 09/11/1991 | EP0445732A2 Method of manufacturing titanium magnetic disk substrate |
| 09/10/1991 | CA2037621A1 Method of manufacturing titanium magnetic disk substrate |
| 09/04/1991 | EP0444367A1 A stamper for injection molding |
| 09/03/1991 | US5045438 With precise track pitches, latent image on photoresist, laser or electron beam radiation of rotating disk |
| 08/28/1991 | EP0443522A2 Optical information recording medium |
| 08/08/1991 | WO1991011805A1 Transfer apparatus and transfer method |
| 08/07/1991 | EP0440214A2 Method for producing optical disc |
| 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 |
| 06/25/1991 | US5026510 Mold for cast molding substrate having preformat with information pits and method of using same |
| 06/19/1991 | EP0432832A1 Method and device for removing a flexible product from a carrier plate |
| 06/18/1991 | US5024744 Stamper cleaning apparatus |
| 06/05/1991 | EP0430311A1 Method of reproducing a flexible optical information recording medium and adapter for use in reproduction of said medium |
| 05/02/1991 | EP0424986A1 Method and apparatus for manufacturing a flexible optical information recording medium |
| 04/24/1991 | EP0424218A2 Processing for producing optical disk |
| 04/17/1991 | EP0422692A1 Flexible optical information recording medium and method of manufacturing the same |
| 04/03/1991 | EP0420304A1 Method of manufacturing an optical recording medium |
| 03/20/1991 | CN1050105A Method for making optically readable media containing embossed information |
| 03/13/1991 | EP0365552B1 Optical storage disk and method of its manufacture |
| 02/26/1991 | US4995799 Optical disc manufacturing apparatus |
| 02/05/1991 | US4990208 Multilayer; adhesive applied in ring pattern |
| 01/22/1991 | US4986938 Compression of injection molded polycarbonate before solidification of interior |
| 01/16/1991 | CN1048619A Direct effect master/stamper for optical recording |
| 01/08/1991 | US4983815 Method of identifying stamper for optical information storage disk |
| 01/08/1991 | US4983335 Method for producing transparent plastic article |
| 01/02/1991 | EP0405898A2 Apparatus for producing substrate sheet for optical recording mediums, and process for producing substrate sheet therefor making use of it |
| 01/02/1991 | EP0405582A2 Method for making optically readable media containing embossed information |
| 01/02/1991 | EP0405568A2 Direct effect master/stamper for optical recording |
| 12/31/1990 | CA2020175A1 Direct effect master/stamper for optical recording |
| 10/31/1990 | EP0395395A2 Roll stamper for molding substrate used for optical recording medium, process for preparing same, and process for preparing optical recording medium making use of it |
| 10/23/1990 | US4965118 Adapter for reproduction of digital information; suitable for mass production |
| 10/23/1990 | US4964934 Laminating flow process |
| 10/03/1990 | EP0390564A2 A metal mold for resin substrate for an optical recording medium and recording medium obtained by it |
| 09/25/1990 | US4959252 Highly oriented thermotropic optical disc member |
| 09/12/1990 | EP0387037A2 Process for preparing optical recording medium using a forming roll for a substrate |
| 07/18/1990 | CN1008846B Polymere substrate for making lasser disc records and easser disc records thereby |
| 05/23/1990 | EP0369781A2 Process and apparatus for producing substrate sheet for optical recording medium |
| 05/23/1990 | EP0369780A2 Process for producing optical recording medium |
| 05/16/1990 | EP0368442A2 Optical information record carrier and the method of producing the same |
| 05/02/1990 | EP0365552A1 Optical storage disk and method of its manufacture. |
| 04/26/1990 | DE3836250A1 Process for producing round polycarbonate plates |
| 03/13/1990 | US4907956 Apparatus for manufacturing optical information recording medium |
| 02/28/1990 | EP0355925A1 A method of making a carrier with optically readable, digitable information |
| 02/06/1990 | US4898529 In an injection molding apparatus |
| 01/30/1990 | US4897228 Method for producing optical disk base |
| 12/12/1989 | US4887179 Substrate for rigid disk storage media and method and apparatus for making the same |
| 12/06/1989 | EP0344242A1 Homogeneous polymers having anti-static properties |
| 11/07/1989 | CA1262609A1 Method of manufacturing a recordable optical storage plate |
| 11/02/1989 | EP0339616A2 Apparatus for manufacturing optical information recording medium |
| 10/31/1989 | US4877666 Magneto-optic substrates |
| 10/25/1989 | EP0338906A2 Method for molding a formatted substrate for an optical disk and a mold assembly used in the method |
| 10/04/1989 | EP0335172A2 Mold for cast molding of substrate for information recording medium, method for preparing substrate for information recording medium and method for preparing information recording medium by use thereof |
| 09/26/1989 | US4870524 Substrate for rigid disk storage media |
| 06/20/1989 | US4841501 Plastic substrate for optical disk and process for producing the same |
| 06/06/1989 | US4836874 Method of mass producing damage-resistant compact discs |
| 05/30/1989 | US4834843 Transfer molding |
| 05/30/1989 | US4834819 Process for producing information recording discs |
| 05/16/1989 | CA1254300A1 Substrate for rigid disk storage media and method of manufacture |
| 05/05/1989 | WO1989003852A1 Homogeneous polymers having anti-static properties |
| 04/05/1989 | EP0309529A1 Mould insert with scratch-resistant polished mould surface for manufacture of plastic parts |
| 03/22/1989 | EP0308104A2 Mold for molding of substrate for information recording medium and method for preparing substrate for information recording medium |
| 03/14/1989 | US4812346 Optical disc base plate and process for producing the same |
| 03/07/1989 | US4810547 Substrate with fine grooves and method for manufacturing the same |
| 02/22/1989 | CN1031291A Process for producing information recording discs |
| 02/15/1989 | EP0303484A2 Process for producing information recording discs |
| 02/15/1989 | EP0303086A2 Method of making a substrate for a magneto-optical recording layer, injection-moulding apparatus for making a substrate as well as substrate for a magneto-optical recording layer |
| 02/14/1989 | CA1249955A1 Coated substrate |
| 01/03/1989 | US4795511 Method of manufacturing an optically readable disc record and disc record manufactured in accordance with the method |
| 12/27/1988 | US4793953 Mold for optical thermoplastic high-pressure molding |
| 12/15/1988 | WO1988009990A1 Optical storage disk and method of its manufacture |
| 12/13/1988 | US4790738 Injection mold having rotatable stamper holding ring |
| 11/29/1988 | US4788015 Process for preparation of optical disk substrate |