DE69013703D1 - Träger für optische Scheibe und Medium für optische Informationsspeicherung. - Google Patents

Träger für optische Scheibe und Medium für optische Informationsspeicherung.

Info

Publication number
DE69013703D1
DE69013703D1 DE69013703T DE69013703T DE69013703D1 DE 69013703 D1 DE69013703 D1 DE 69013703D1 DE 69013703 T DE69013703 T DE 69013703T DE 69013703 T DE69013703 T DE 69013703T DE 69013703 D1 DE69013703 D1 DE 69013703D1
Authority
DE
Germany
Prior art keywords
carrier
medium
information storage
optical
optical disc
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.)
Expired - Lifetime
Application number
DE69013703T
Other languages
English (en)
Other versions
DE69013703T3 (de
DE69013703T2 (de
Inventor
Atsunobu Sakoda
Katsumi Uchiyama
Toshihiko Fujishima
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Petrochemical Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11851102&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69013703(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Idemitsu Petrochemical Co Ltd filed Critical Idemitsu Petrochemical Co Ltd
Application granted granted Critical
Publication of DE69013703D1 publication Critical patent/DE69013703D1/de
Publication of DE69013703T2 publication Critical patent/DE69013703T2/de
Publication of DE69013703T3 publication Critical patent/DE69013703T3/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
DE69013703T 1989-01-25 1990-01-20 Träger für optische Scheibe und Medium für optische Informationsspeicherung. Expired - Lifetime DE69013703T3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1407989 1989-01-25

Publications (3)

Publication Number Publication Date
DE69013703D1 true DE69013703D1 (de) 1994-12-08
DE69013703T2 DE69013703T2 (de) 1995-06-08
DE69013703T3 DE69013703T3 (de) 2003-07-17

Family

ID=11851102

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69013703T Expired - Lifetime DE69013703T3 (de) 1989-01-25 1990-01-20 Träger für optische Scheibe und Medium für optische Informationsspeicherung.

Country Status (4)

Country Link
EP (1) EP0380002B2 (de)
JP (1) JPH0827978B2 (de)
KR (1) KR0132773B1 (de)
DE (1) DE69013703T3 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831963A (en) * 1994-11-16 1998-11-03 Mitsubishi Chemical Corporation Optical recording medium having zones wherein the number of sectors per track is constant and method of injection-molding the same
DE19542810A1 (de) * 1994-11-16 1996-05-23 Mitsubishi Chem Corp Optisches Aufzeichnungsmedium und Verfahren zur Herstellung desselben
DE19952851A1 (de) * 1999-11-03 2001-05-10 Bayer Ag Polycarbonat-Substrate
DE19952850A1 (de) 1999-11-03 2001-05-10 Bayer Ag Polycarbonat-Substrate
DE19952849A1 (de) 1999-11-03 2001-05-10 Bayer Ag Optische Datenträger und Verfahren zu ihrer Herstellung
JP4928018B2 (ja) * 1999-12-03 2012-05-09 帝人株式会社 芳香族ポリカーボネート、その製造法および成形品
WO2001040352A1 (fr) * 1999-12-03 2001-06-07 Teijin Limited Polycarbonate aromatique, son procede de production et article moule
JP2002069219A (ja) * 2000-08-31 2002-03-08 Teijin Chem Ltd ポリカーボネート樹脂組成物成形体
JP4673998B2 (ja) * 2001-05-08 2011-04-20 帝人化成株式会社 高精密転写性ポリカーボネート樹脂光学用成形材料、およびそれより形成された光ディスク基板
JP2002348458A (ja) * 2001-05-29 2002-12-04 Mitsubishi Engineering Plastics Corp 耐加水分解性ポリカーボネート樹脂組成物
JP2002348459A (ja) * 2001-05-29 2002-12-04 Mitsubishi Engineering Plastics Corp 難燃性ポリカーボネート樹脂組成物
JP2006313638A (ja) * 2006-07-25 2006-11-16 Teijin Chem Ltd 光ディスク基板の製造方法
JP6026946B2 (ja) 2013-04-19 2016-11-16 出光興産株式会社 ポリカーボネート系樹脂組成物及び成形体
JP6027211B2 (ja) * 2015-11-10 2016-11-16 出光興産株式会社 ポリカーボネート系樹脂組成物及び成形体
CN116148106B (zh) * 2023-04-21 2023-07-14 清华四川能源互联网研究院 落球式耐久冲击与温湿度联合加速试验方法及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6250801A (ja) * 1985-08-30 1987-03-05 Teijin Chem Ltd 光学用成形品
JP2528838B2 (ja) * 1986-10-14 1996-08-28 ソニー株式会社 光学式情報記録媒体
JPH07118093B2 (ja) * 1987-04-15 1995-12-18 ソニー株式会社 光学式情報記録媒体
US4880896A (en) * 1987-05-30 1989-11-14 Idemitsu Petrochemical Co., Ltd. Polycarbonate for disc substrate having low bisphenol content

Also Published As

Publication number Publication date
KR0132773B1 (ko) 1998-04-16
JPH02276037A (ja) 1990-11-09
JPH0827978B2 (ja) 1996-03-21
KR900012225A (ko) 1990-08-03
EP0380002B2 (de) 2003-01-29
EP0380002B1 (de) 1994-11-02
DE69013703T3 (de) 2003-07-17
DE69013703T2 (de) 1995-06-08
EP0380002A2 (de) 1990-08-01
EP0380002A3 (en) 1990-08-22

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: IDEMITSU KOSAN CO., LTD., TOKIO/TOKYO, JP