Jean Ledieu

Person

Crespieres, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Pre-engraved substrate for magnetic, magneto-optical, or phase tran...
- Patent number 6,620,480
- Issue date Sep 16, 2003
- ODME International B.V.
- Jean Ledieu
- G11 - INFORMATION STORAGE
Information Patent Grant
Master disk for making dies for pressing in particular optical disks
- Patent number 5,770,238
- Issue date Jun 23, 1998
- Digipress
- Jean Ledieu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Methods of manufacture of master disk for making a die for pressing...
- Patent number 5,763,002
- Issue date Jun 9, 1998
- Digipress
- Jean Ledieu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Compact disc comprising an antipiracy marking and method of providi...
- Patent number 5,671,205
- Issue date Sep 23, 1997
- Digipress
- Jean Ledieu
- G11 - INFORMATION STORAGE
Information Patent Grant
Process of manufacture of a master disk and/or of an optical disk
- Patent number 5,622,815
- Issue date Apr 22, 1997
- Digipress
- Jean Ledieu
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing dies for pressing optical disks
- Patent number 5,312,718
- Issue date May 17, 1994
- Digipress
- Jean Ledieu
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for the manufacture of an optically readable disc, and discs...
- Patent number 5,166,014
- Issue date Nov 24, 1992
- Digipress
- Jean Ledieu
- G11 - INFORMATION STORAGE

Jean Ledieu

Person

Patents Grantslast 30 patents

Pre-engraved substrate for magnetic, magneto-optical, or phase tran...

Master disk for making dies for pressing in particular optical disks

Methods of manufacture of master disk for making a die for pressing...

Compact disc comprising an antipiracy marking and method of providi...

Process of manufacture of a master disk and/or of an optical disk

Method of manufacturing dies for pressing optical disks

Method for the manufacture of an optically readable disc, and discs...