GB9810161D0 - Digital data storage disc - Google Patents

Digital data storage disc

Info

Publication number
GB9810161D0
GB9810161D0 GBGB9810161.1A GB9810161A GB9810161D0 GB 9810161 D0 GB9810161 D0 GB 9810161D0 GB 9810161 A GB9810161 A GB 9810161A GB 9810161 D0 GB9810161 D0 GB 9810161D0
Authority
GB
United Kingdom
Prior art keywords
data storage
digital data
storage disc
disc
digital
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.)
Withdrawn
Application number
GBGB9810161.1A
Other versions
GB2326014A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9810161D0 publication Critical patent/GB9810161D0/en
Publication of GB2326014A publication Critical patent/GB2326014A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7808—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots
    • B29C65/7811—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots for centring purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/24018—Laminated discs
    • G11B7/24024—Adhesion or bonding, e.g. specific adhesive layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
GB9810161A 1997-05-16 1998-05-12 A two-sided digital disc Withdrawn GB2326014A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85731397A 1997-05-16 1997-05-16

Publications (2)

Publication Number Publication Date
GB9810161D0 true GB9810161D0 (en) 1998-07-08
GB2326014A GB2326014A (en) 1998-12-09

Family

ID=25325706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9810161A Withdrawn GB2326014A (en) 1997-05-16 1998-05-12 A two-sided digital disc

Country Status (3)

Country Link
JP (1) JPH117659A (en)
FR (1) FR2765717A1 (en)
GB (1) GB2326014A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6599602B2 (en) 1999-06-02 2003-07-29 3M Innovative Properties Company Polycarbonate articles and adhesive composition therefor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331966A (en) * 1980-10-06 1982-05-25 Storage Technology Corporation Information storage device and method of forming same
JPS586536A (en) * 1981-07-01 1983-01-14 Pioneer Electronic Corp Optical disc
KR870002142B1 (en) * 1982-09-20 1987-12-12 디스커비소젼 어시에이츠 Optical recording medium and its making method
US4740947A (en) * 1984-04-25 1988-04-26 Sharp Kabushiki Kaisha Dual surface optical memory disc
JPS62205554A (en) * 1986-03-05 1987-09-10 Sumitomo Chem Co Ltd Optical disk
JPS63188838A (en) * 1987-01-31 1988-08-04 Toshiba Corp Information recording medium
US5128388A (en) * 1987-11-30 1992-07-07 Sunstar Giken Kabushiki Kaisha Hot melt adhesive crosslinkable by ultraviolet irradiation, optical disc using the same and process for preparing thereof
JP2656785B2 (en) * 1988-02-24 1997-09-24 日東電工株式会社 Light disk
JP2656985B2 (en) * 1989-09-22 1997-09-24 シャープ株式会社 Optical memory device
KR970004688B1 (en) * 1990-04-28 1997-04-02 상요 덴기 가부시끼가이샤 A method for manufacturing bilateral video disk with high quality
US5146438A (en) * 1990-05-30 1992-09-08 E. I. Du Pont De Nemours & Co. Method of making double-sided magneto-optical disks having reduced birefringence
DE69520920T2 (en) * 1994-10-03 2001-09-27 Matsushita Electric Ind Co Ltd Optical information medium, as well as unit and method for its production
JPH08203125A (en) * 1995-01-31 1996-08-09 Pioneer Electron Corp Laminated optical disk and its production
US5729533A (en) * 1995-09-12 1998-03-17 Wae Manufacturing Inc. Two-sided, light-readable information recording disc stacks and methods of making same
JP3289125B2 (en) * 1996-03-15 2002-06-04 ソニーケミカル株式会社 Optical information recording medium
AU1083397A (en) * 1996-08-21 1998-03-06 Imation Corp. Process for bonding optical media

Also Published As

Publication number Publication date
GB2326014A (en) 1998-12-09
JPH117659A (en) 1999-01-12
FR2765717A1 (en) 1999-01-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)