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AU661796B2 - Phase-change type optical disk device and optical head to be used therein - Google Patents
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AU661796B2 - Phase-change type optical disk device and optical head to be used therein - Google Patents

Phase-change type optical disk device and optical head to be used therein

Info

Publication number
AU661796B2
AU661796B2 AU49079/93A AU4907993A AU661796B2 AU 661796 B2 AU661796 B2 AU 661796B2 AU 49079/93 A AU49079/93 A AU 49079/93A AU 4907993 A AU4907993 A AU 4907993A AU 661796 B2 AU661796 B2 AU 661796B2
Authority
AU
Australia
Prior art keywords
phase
disk device
change type
optical disk
optical head
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.)
Ceased
Application number
AU49079/93A
Other versions
AU4907993A (en
Inventor
Mitsuya Okada
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to AU49079/93A priority Critical patent/AU661796B2/en
Publication of AU4907993A publication Critical patent/AU4907993A/en
Application granted granted Critical
Publication of AU661796B2 publication Critical patent/AU661796B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU49079/93A 1993-10-18 1993-10-18 Phase-change type optical disk device and optical head to be used therein Ceased AU661796B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49079/93A AU661796B2 (en) 1993-10-18 1993-10-18 Phase-change type optical disk device and optical head to be used therein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU49079/93A AU661796B2 (en) 1993-10-18 1993-10-18 Phase-change type optical disk device and optical head to be used therein

Publications (2)

Publication Number Publication Date
AU4907993A AU4907993A (en) 1995-05-25
AU661796B2 true AU661796B2 (en) 1995-08-03

Family

ID=3735827

Family Applications (1)

Application Number Title Priority Date Filing Date
AU49079/93A Ceased AU661796B2 (en) 1993-10-18 1993-10-18 Phase-change type optical disk device and optical head to be used therein

Country Status (1)

Country Link
AU (1) AU661796B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU596011B2 (en) * 1987-06-11 1990-04-12 Asahi Kasei Kogyo Kabushiki Kaisha A method for recording and erasing information
US5025439A (en) * 1987-11-24 1991-06-18 Pioneer Electronic Corporation Method for recording and reproducing of information on an optical disk of a phase-change type
US5084851A (en) * 1989-10-30 1992-01-28 Nippon Conlux Co., Ltd. Optical head for recording and playing back optical information

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU596011B2 (en) * 1987-06-11 1990-04-12 Asahi Kasei Kogyo Kabushiki Kaisha A method for recording and erasing information
US5025439A (en) * 1987-11-24 1991-06-18 Pioneer Electronic Corporation Method for recording and reproducing of information on an optical disk of a phase-change type
US5084851A (en) * 1989-10-30 1992-01-28 Nippon Conlux Co., Ltd. Optical head for recording and playing back optical information

Also Published As

Publication number Publication date
AU4907993A (en) 1995-05-25

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired