JPH01211249A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPH01211249A
JPH01211249A JP3279588A JP3279588A JPH01211249A JP H01211249 A JPH01211249 A JP H01211249A JP 3279588 A JP3279588 A JP 3279588A JP 3279588 A JP3279588 A JP 3279588A JP H01211249 A JPH01211249 A JP H01211249A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
optical recording
recording film
pb
sb
au
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.)
Granted
Application number
JP3279588A
Other versions
JP2746896B2 (en )
Inventor
Koichi Mori
Isao Morimoto
Masaru Suzuki
Original Assignee
Asahi Chem Ind 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

Links

Abstract

PURPOSE: To obtain a medium in which the recording of information is accelerated and is made into high density and the high stability of amorphous substance can be obtained by using an optical recording film having prescribed composition.
CONSTITUTION: The optical recording film consisting of a material to induce phase change by projecting a laser beam is provided on a substrate, and performs the recording and erasure of the information based on the change of an optical constant generated by the phase change. The composition of the optical recording film consists of one kind of element selected out of an Au, a Pd, an Ni, a Pt, a Cu, an Ag, a Co, a Pb and a Bi, and a Te, an Sb, and a Ge, and also, those elements are shown in a general equation [CTexSb1-x)1-yGey]1-2M2 (where, M represents one kind of elements selected out of the Au, the Pd, and Ni, the Pt, and Cu, the Ag, the Co, and the Pb and x, y, and z are represented as 0.3≤x≤0.9, 0<y≤0.2, and 0<z≤0.2, respectively).
COPYRIGHT: (C)1989,JPO&Japio
JP3279588A 1988-02-17 1988-02-17 An optical recording medium Expired - Lifetime JP2746896B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3279588A JP2746896B2 (en) 1988-02-17 1988-02-17 An optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3279588A JP2746896B2 (en) 1988-02-17 1988-02-17 An optical recording medium

Publications (2)

Publication Number Publication Date
JPH01211249A true true JPH01211249A (en) 1989-08-24
JP2746896B2 JP2746896B2 (en) 1998-05-06

Family

ID=12368784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3279588A Expired - Lifetime JP2746896B2 (en) 1988-02-17 1988-02-17 An optical recording medium

Country Status (1)

Country Link
JP (1) JP2746896B2 (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245440A (en) * 1988-03-28 1989-09-29 Hitachi Ltd Thin film for information recording
JPH01251342A (en) * 1988-03-31 1989-10-06 Toshiba Corp Information recording medium
JPH02158383A (en) * 1988-12-12 1990-06-18 Hitachi Ltd Data recording membrane
JPH0371887A (en) * 1989-08-11 1991-03-27 Hisankabutsu Glass Kenkyu Kaihatsu Kk Optical data recording medium
US5063097A (en) * 1988-12-16 1991-11-05 Toray Industries, Inc. Optical recording medium
EP0594277A1 (en) * 1992-10-21 1994-04-27 Toray Industries, Inc. Optical recording medium
EP0661699A2 (en) * 1993-12-27 1995-07-05 Nec Corporation Information recording medium
US5641606A (en) * 1994-10-05 1997-06-24 Asahi Kasei Kogyo Kabushiki Kaisha Phase-change optical disks and processes for preparing the same
US5709978A (en) * 1993-06-18 1998-01-20 Hitachi, Ltd. Supperresolution readout thin film and information recording medium
WO1999006220A1 (en) * 1997-08-01 1999-02-11 Hitachi, Ltd. Information recording medium
US6096399A (en) * 1997-12-22 2000-08-01 Tdk Corporation Optical recording medium
US6143468A (en) * 1996-10-04 2000-11-07 Mitsubishi Chemical Corporation Optical information recording medium and optical recording method
US6268034B1 (en) 1998-08-05 2001-07-31 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and method for producing the same, method for recording and reproducing information thereon and recording/reproducing apparatus
US6343062B1 (en) 1997-09-26 2002-01-29 Matsushita Electric Industrial Co., Ltd Optical disk device and optical disk for recording and reproducing high-density signals
US6388984B2 (en) 1997-08-28 2002-05-14 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and its recording and reproducing method
US6503690B1 (en) * 1997-08-12 2003-01-07 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for producing the same, and method for recording and reproducing optical information
US6821707B2 (en) 1996-03-11 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US7037413B1 (en) 1996-03-11 2006-05-02 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US7241549B2 (en) 2001-09-18 2007-07-10 Ricoh Company, Ltd. Information recording medium
EP2178086A2 (en) 1998-09-09 2010-04-21 Mitsubishi Kagaku Media Co., Ltd. Optical recording method
US8000198B2 (en) 2005-06-06 2011-08-16 Ricoh Company, Ltd. Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61258787A (en) * 1985-05-13 1986-11-17 Asahi Chem Ind Co Ltd Information-recording medium
JPH01112538A (en) * 1987-10-26 1989-05-01 Matsushita Electric Ind Co Ltd Optical information recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61258787A (en) * 1985-05-13 1986-11-17 Asahi Chem Ind Co Ltd Information-recording medium
JPH01112538A (en) * 1987-10-26 1989-05-01 Matsushita Electric Ind Co Ltd Optical information recording medium

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245440A (en) * 1988-03-28 1989-09-29 Hitachi Ltd Thin film for information recording
JPH01251342A (en) * 1988-03-31 1989-10-06 Toshiba Corp Information recording medium
JPH02158383A (en) * 1988-12-12 1990-06-18 Hitachi Ltd Data recording membrane
US5063097A (en) * 1988-12-16 1991-11-05 Toray Industries, Inc. Optical recording medium
JPH0371887A (en) * 1989-08-11 1991-03-27 Hisankabutsu Glass Kenkyu Kaihatsu Kk Optical data recording medium
EP0594277A1 (en) * 1992-10-21 1994-04-27 Toray Industries, Inc. Optical recording medium
US5912104A (en) * 1993-06-18 1999-06-15 Hitachi, Ltd. Information recording medium
US5709978A (en) * 1993-06-18 1998-01-20 Hitachi, Ltd. Supperresolution readout thin film and information recording medium
EP0661699A2 (en) * 1993-12-27 1995-07-05 Nec Corporation Information recording medium
EP0661699A3 (en) * 1993-12-27 1997-02-05 Nec Corp Information recording medium.
US5641606A (en) * 1994-10-05 1997-06-24 Asahi Kasei Kogyo Kabushiki Kaisha Phase-change optical disks and processes for preparing the same
US6821707B2 (en) 1996-03-11 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US7037413B1 (en) 1996-03-11 2006-05-02 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
US6811949B2 (en) 1996-10-04 2004-11-02 Mitsubishi Chemical Corporation Optical information recording medium and optical recording method
US6143468A (en) * 1996-10-04 2000-11-07 Mitsubishi Chemical Corporation Optical information recording medium and optical recording method
US6294310B1 (en) 1996-10-04 2001-09-25 Mitsubishi Chemical Corporation Optical information recording medium and optical recording method
WO1999006220A1 (en) * 1997-08-01 1999-02-11 Hitachi, Ltd. Information recording medium
US6503690B1 (en) * 1997-08-12 2003-01-07 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for producing the same, and method for recording and reproducing optical information
US6388984B2 (en) 1997-08-28 2002-05-14 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and its recording and reproducing method
US6343062B1 (en) 1997-09-26 2002-01-29 Matsushita Electric Industrial Co., Ltd Optical disk device and optical disk for recording and reproducing high-density signals
US6096399A (en) * 1997-12-22 2000-08-01 Tdk Corporation Optical recording medium
US6268034B1 (en) 1998-08-05 2001-07-31 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and method for producing the same, method for recording and reproducing information thereon and recording/reproducing apparatus
EP2178086A2 (en) 1998-09-09 2010-04-21 Mitsubishi Kagaku Media Co., Ltd. Optical recording method
US7241549B2 (en) 2001-09-18 2007-07-10 Ricoh Company, Ltd. Information recording medium
US8000198B2 (en) 2005-06-06 2011-08-16 Ricoh Company, Ltd. Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium

Also Published As

Publication number Publication date Type
JP2746896B2 (en) 1998-05-06 grant

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