Method for producing a disk-shaped substrate and method for producing an optical disk
A method for producing a disk-shaped substrate 10 used for producing an optical disk includes: (a) forming a protective layer 12 a that is larger in area than the disk-shaped substrate 10 on a surface of a transparent plate 11 a; and (b) cutting a portion of the plate 11 a with the protective layer...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
05.09.2006
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Subjects | |
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Abstract | A method for producing a disk-shaped substrate 10 used for producing an optical disk includes: (a) forming a protective layer 12 a that is larger in area than the disk-shaped substrate 10 on a surface of a transparent plate 11 a; and (b) cutting a portion of the plate 11 a with the protective layer 12 a formed thereon other than an outer edge portion of the protective layer 12 a to form a disk shape. According to this producing method, a thin substrate can be prevented from being damaged by forming a protective layer. Furthermore, according to this producing method, a protective layer with a uniform thickness can be formed. |
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AbstractList | A method for producing a disk-shaped substrate 10 used for producing an optical disk includes: (a) forming a protective layer 12 a that is larger in area than the disk-shaped substrate 10 on a surface of a transparent plate 11 a; and (b) cutting a portion of the plate 11 a with the protective layer 12 a formed thereon other than an outer edge portion of the protective layer 12 a to form a disk shape. According to this producing method, a thin substrate can be prevented from being damaged by forming a protective layer. Furthermore, according to this producing method, a protective layer with a uniform thickness can be formed. |
Author | OHNO EIJI HISADA KAZUYA HAYASHI KAZUHIRO |
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RelatedCompanies | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
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Snippet | A method for producing a disk-shaped substrate 10 used for producing an optical disk includes: (a) forming a protective layer 12 a that is larger in area than... |
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SubjectTerms | APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY COMPOSITIONS BASED THEREON INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING |
Title | Method for producing a disk-shaped substrate and method for producing an optical disk |
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