JPS59193560A - Stamper for rotary recording medium and its manufacture - Google Patents

Stamper for rotary recording medium and its manufacture

Info

Publication number
JPS59193560A
JPS59193560A JP6892083A JP6892083A JPS59193560A JP S59193560 A JPS59193560 A JP S59193560A JP 6892083 A JP6892083 A JP 6892083A JP 6892083 A JP6892083 A JP 6892083A JP S59193560 A JPS59193560 A JP S59193560A
Authority
JP
Japan
Prior art keywords
layer
information transfer
stamper
transfer layer
consisting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6892083A
Inventor
Koichiro Arita
Original Assignee
Daicel Chem Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daicel Chem Ind Ltd filed Critical Daicel Chem Ind Ltd
Priority to JP6892083A priority Critical patent/JPS59193560A/en
Publication of JPS59193560A publication Critical patent/JPS59193560A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture

Abstract

PURPOSE:To obtain easily a stamper having excellent performance by forming successively an information transfer layer consisting of a material having high surface hardness and an intermediate layer consisting of a metal by a vacuum film forming method then forming a backing layer by an electroforming method. CONSTITUTION:An information transfer layer 2 consisting of a material having high surface hardness is formed by a vacuum film forming method on a matrix 1 for duplication and further an information transfer layer and a backing layer 4 are adhered thereto. An intermediate layer 3 playing the role of permitting electroforming of the backing layer is thereafter formed by a vacuum film forming method thereon in the same vacuum vessel. The information transfer layer and the backing layer adhered by the intermediate layer are stripped from the matrix for duplication and a stamper is obtd. Cr, Cr-Co alloy, corundum, TiN, TiC and SiC are used for the information transfer layer and Fe, Ni, Cu and Sn are used for the intermediate layer.
JP6892083A 1983-04-19 1983-04-19 Stamper for rotary recording medium and its manufacture Pending JPS59193560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6892083A JPS59193560A (en) 1983-04-19 1983-04-19 Stamper for rotary recording medium and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6892083A JPS59193560A (en) 1983-04-19 1983-04-19 Stamper for rotary recording medium and its manufacture

Publications (1)

Publication Number Publication Date
JPS59193560A true JPS59193560A (en) 1984-11-02

Family

ID=13387565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6892083A Pending JPS59193560A (en) 1983-04-19 1983-04-19 Stamper for rotary recording medium and its manufacture

Country Status (1)

Country Link
JP (1) JPS59193560A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173735A (en) * 1984-02-06 1985-09-07 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical disk
EP0395395A2 (en) * 1989-04-26 1990-10-31 Canon Kabushiki Kaisha 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
EP1154421A2 (en) * 2000-05-12 2001-11-14 Furuya Metal Co., Ltd. Production method for optical disc
US6890704B2 (en) * 1998-04-06 2005-05-10 Imation Corp. Reverse optical mastering for data storage disks
US7427466B2 (en) 2004-11-29 2008-09-23 Imation Corp. Anti-reflection optical data storage disk master

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850635A (en) * 1981-09-18 1983-03-25 Hitachi Ltd Stamper and production thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850635A (en) * 1981-09-18 1983-03-25 Hitachi Ltd Stamper and production thereof

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173735A (en) * 1984-02-06 1985-09-07 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical disk
EP0395395A2 (en) * 1989-04-26 1990-10-31 Canon Kabushiki Kaisha 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
US5048745A (en) * 1989-04-26 1991-09-17 Canon Kabushiki Kaisha 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
US8705334B2 (en) 1998-04-06 2014-04-22 Legger Col. A.B. Llc Replica disk for data storage
US6890704B2 (en) * 1998-04-06 2005-05-10 Imation Corp. Reverse optical mastering for data storage disks
US8593931B2 (en) 1998-04-06 2013-11-26 Legger Col. A.B. Llc Replica disk for data storage
US7349323B2 (en) 1998-04-06 2008-03-25 Imation Corp. Reverse optical mastering for data storage disks
US7352685B2 (en) 1998-04-06 2008-04-01 Imation Corp. Reverse optical mastering for data storage disk replicas
USRE44633E1 (en) 1998-04-06 2013-12-10 Legger Col. A.B. Llc Reverse optical mastering for data storage disk replicas
US7600992B2 (en) 1998-04-06 2009-10-13 Imation Corp. Reverse optical mastering for data storage disk stamper
US7801016B2 (en) 1998-04-06 2010-09-21 Imation Corp. Reverse optical mastering for data storage disk replicas
US7952986B2 (en) 1998-04-06 2011-05-31 Imation Corp. Reverse optical mastering for data storage disk replicas
US8363534B2 (en) 1998-04-06 2013-01-29 Legger Col. A.B. Llc Reverse optical mastering for data storage disk replicas
EP1154421A3 (en) * 2000-05-12 2006-06-07 Pioneer Corporation Production method for optical disc
EP1154421A2 (en) * 2000-05-12 2001-11-14 Furuya Metal Co., Ltd. Production method for optical disc
US7427466B2 (en) 2004-11-29 2008-09-23 Imation Corp. Anti-reflection optical data storage disk master

Similar Documents

Publication Publication Date Title
JPS5798133A (en) Magnetic recording medium
JPS60214417A (en) Vertical magnetic recording medium
JPS60111323A (en) Magnetic recording medium
JPS6266417A (en) Magnetic recording medium
JPH03104017A (en) Magtetic recording medium having smooth surface
JPS6043224A (en) Magnetic recording medium
EP0391258A3 (en) Magnetic recording medium and method for its production
JPH04123314A (en) Disk type recording medium and memory device
JPS56134321A (en) Magnetic recording medium
JPH0325723A (en) Magnetic recording medium and production thereof
JPS60101710A (en) Vertical magnetic recording medium
JPS6326827A (en) Production of magnetic recording medium
JPS5961106A (en) Magnetic memory body
JPS57176537A (en) Magnetic recording medium
JPS5647926A (en) Magnetic recording medium
JPS59119534A (en) Magnetic recording medium
JPS563117A (en) Coated miniature drill made of hard alloy metal
JPS6378328A (en) Magnetic recording medium
JPS59119536A (en) Magnetic recording medium and its production
JPS61105720A (en) Magnetic storage medium
JPH04251435A (en) Magnetic disk
JPS6379968A (en) Production of magnetic recording medium
JPS59217224A (en) Magnetic memory medium
JPS54131537A (en) Preparation of high density record replica disk metal pattern
EP0399747A3 (en) Substrate used for magnetic disk and magnetic recording medium using the substrate