CA2044969C - Optical recording medium and recording method - Google Patents

Optical recording medium and recording method

Info

Publication number
CA2044969C
CA2044969C CA002044969A CA2044969A CA2044969C CA 2044969 C CA2044969 C CA 2044969C CA 002044969 A CA002044969 A CA 002044969A CA 2044969 A CA2044969 A CA 2044969A CA 2044969 C CA2044969 C CA 2044969C
Authority
CA
Canada
Prior art keywords
optical recording
recording medium
recording
layer
pit length
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 - Fee Related
Application number
CA002044969A
Other languages
English (en)
French (fr)
Other versions
CA2044969A1 (en
Inventor
Tadashi Koike
Shin Aihara
Keiji Ueno
Shinichi Murakami
Sumio Hirose
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.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of CA2044969A1 publication Critical patent/CA2044969A1/en
Application granted granted Critical
Publication of CA2044969C publication Critical patent/CA2044969C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/248—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CA002044969A 1990-06-22 1991-06-19 Optical recording medium and recording method Expired - Fee Related CA2044969C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP162597/1990 1990-06-22
JP16259790 1990-06-22

Publications (2)

Publication Number Publication Date
CA2044969A1 CA2044969A1 (en) 1991-12-23
CA2044969C true CA2044969C (en) 1997-05-13

Family

ID=15757620

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002044969A Expired - Fee Related CA2044969C (en) 1990-06-22 1991-06-19 Optical recording medium and recording method

Country Status (7)

Country Link
US (1) US5391461A (enExample)
EP (1) EP0463550B1 (enExample)
JP (1) JP3126411B2 (enExample)
KR (1) KR950013391B1 (enExample)
CA (1) CA2044969C (enExample)
DE (1) DE69121799T2 (enExample)
HK (1) HK9497A (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05120727A (ja) * 1991-10-28 1993-05-18 Ricoh Co Ltd 光記録媒体及び該媒体に情報を記録または再生する方法
DE69326503T2 (de) * 1992-06-12 2000-04-27 Mitsui Chemicals Inc Lichtabsorbierende Verbindung und optisches Aufzeichnungsmedium das diese enthält
CA2110233C (en) 1992-12-02 1999-01-12 Mitsui Toatsu Chemicals, Incorporated Optical information recording medium and composition for optical information recording film
US5348840A (en) * 1993-05-05 1994-09-20 Toyo Ink Manufacturing Co., Ltd. Optical recording medium
EP0675489B1 (en) * 1994-03-31 2003-11-12 TDK Corporation Optical recording medium
US5633106A (en) * 1994-04-08 1997-05-27 Mitsui Toatsu Chemicals, Inc. Optical recording media and a method of recording and reproducing information
JP3604427B2 (ja) * 1994-09-27 2004-12-22 三井化学株式会社 フタロシアニン化合物及びそれを含有してなる光記録媒体
JP3604432B2 (ja) * 1994-12-15 2004-12-22 三井化学株式会社 フタロシアニン化合物及びそれを含有してなる光記録媒体
TW454009B (en) * 1994-12-27 2001-09-11 Mitsui Chemicals Inc Near infrared light-absorbing dye of phthalocyanine compounds and optical recording media comprising them
JP3604435B2 (ja) * 1994-12-27 2004-12-22 三井化学株式会社 フタロシアニン化合物及びそれを含有してなる光記録媒体
JPH08188718A (ja) * 1995-01-13 1996-07-23 Mitsui Toatsu Chem Inc フタロシアニン化合物及びそれを含有してなる光記録媒体
JP3604439B2 (ja) * 1995-01-18 2004-12-22 三井化学株式会社 フタロシアニン化合物及びそれを含有してなる光記録媒体
US5863703A (en) * 1995-02-10 1999-01-26 Ricoh Company, Ltd. Optical information recording medium using a phthalocyanine compound
US5998609A (en) * 1996-10-14 1999-12-07 Nippon Shokubai Co., Ltd. Phthalocyanine compounds, process for preparing the same, and optical recording medium made using the same
KR100268486B1 (ko) * 1997-11-01 2000-10-16 윤종용 광디스크기록및재생방법과그장치
JP3865547B2 (ja) * 1999-11-12 2007-01-10 株式会社リコー 光記録媒体および光記録媒体の製造方法
US6737143B2 (en) 2001-06-14 2004-05-18 Ricoh Company Ltd. Optical recording medium, optical recording method and optical recording device
JP4137691B2 (ja) 2003-04-30 2008-08-20 株式会社リコー 光記録媒体
US7767284B2 (en) 2004-04-28 2010-08-03 Ricoh Company, Ltd. Optical recording medium, and, method for manufacturing the same, and method and apparatus for optical recording and reproducing thereof
EP1621584B1 (en) 2004-07-29 2007-01-24 Clariant Finance (BVI) Limited Amino antipyrine based azo ligands and their metal complexes for use as optical recording media

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529688A (en) * 1983-10-13 1985-07-16 Xerox Corporation Infrared sensitive phthalocyanine compositions
GB8431924D0 (en) * 1984-12-18 1985-01-30 Ici Plc Optical recording medium
DE3643770A1 (de) * 1986-12-20 1988-06-30 Basf Ag Mono- und disubstituierte phthalocyanine
US5090009A (en) * 1988-07-30 1992-02-18 Taiyo Yuden Co., Ltd. Optical information recording medium
US4940618A (en) * 1988-07-30 1990-07-10 Taiyo Yuden Company, Ltd. Optical information recording medium
EP0373643B1 (en) * 1988-12-15 1998-01-21 MITSUI TOATSU CHEMICALS, Inc. Near infrared absorbers and display/recording materials prepared by using same
US5280114A (en) * 1990-04-07 1994-01-18 Mitsui Toatsu Chemicals, Incorporated Halogenation of alkoxyphthalocyanine

Also Published As

Publication number Publication date
KR920000509A (ko) 1992-01-29
EP0463550B1 (en) 1996-09-04
EP0463550A3 (enExample) 1994-02-23
JP3126411B2 (ja) 2001-01-22
KR950013391B1 (ko) 1995-11-08
EP0463550A2 (en) 1992-01-02
DE69121799D1 (de) 1996-10-10
HK9497A (en) 1997-01-31
DE69121799T2 (de) 1997-03-27
JPH04226390A (ja) 1992-08-17
US5391461A (en) 1995-02-21
CA2044969A1 (en) 1991-12-23

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