CN1014562B - 光盘 - Google Patents

光盘

Info

Publication number
CN1014562B
CN1014562B CN89107461.9A CN89107461A CN1014562B CN 1014562 B CN1014562 B CN 1014562B CN 89107461 A CN89107461 A CN 89107461A CN 1014562 B CN1014562 B CN 1014562B
Authority
CN
China
Prior art keywords
substrate
dish
optical disc
thermal expansivity
information recording
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
Application number
CN89107461.9A
Other languages
English (en)
Chinese (zh)
Other versions
CN1040283A (zh
Inventor
藤沢秀光
服部通宜
草浦章雄
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN1040283A publication Critical patent/CN1040283A/zh
Publication of CN1014562B publication Critical patent/CN1014562B/zh
Expired legal-status Critical Current

Links

Images

Landscapes

  • Magnetic Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CN89107461.9A 1986-07-22 1989-09-19 光盘 Expired CN1014562B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP113995/86 1986-07-22
JP1986113995U JPS6322662U (ja) 1986-07-22 1986-07-22

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
CN87105175A Division CN1007187B (zh) 1986-07-22 1987-07-21 光盘
CN87105175 Division 1989-09-19

Publications (2)

Publication Number Publication Date
CN1040283A CN1040283A (zh) 1990-03-07
CN1014562B true CN1014562B (zh) 1991-10-30

Family

ID=14626420

Family Applications (1)

Application Number Title Priority Date Filing Date
CN89107461.9A Expired CN1014562B (zh) 1986-07-22 1989-09-19 光盘

Country Status (2)

Country Link
JP (1) JPS6322662U (ja)
CN (1) CN1014562B (ja)

Also Published As

Publication number Publication date
CN1040283A (zh) 1990-03-07
JPS6322662U (ja) 1988-02-15

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PB01 Publication
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee