JPH042374U - - Google Patents

Info

Publication number
JPH042374U
JPH042374U JP1990042368U JP4236890U JPH042374U JP H042374 U JPH042374 U JP H042374U JP 1990042368 U JP1990042368 U JP 1990042368U JP 4236890 U JP4236890 U JP 4236890U JP H042374 U JPH042374 U JP H042374U
Authority
JP
Japan
Prior art keywords
disk
metal plate
center hole
center
ring
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
JP1990042368U
Other languages
English (en)
Japanese (ja)
Other versions
JP2520595Y2 (ja
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 filed Critical
Priority to JP1990042368U priority Critical patent/JP2520595Y2/ja
Publication of JPH042374U publication Critical patent/JPH042374U/ja
Application granted granted Critical
Publication of JP2520595Y2 publication Critical patent/JP2520595Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP1990042368U 1990-04-20 1990-04-20 光ディスク Expired - Fee Related JP2520595Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990042368U JP2520595Y2 (ja) 1990-04-20 1990-04-20 光ディスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990042368U JP2520595Y2 (ja) 1990-04-20 1990-04-20 光ディスク

Publications (2)

Publication Number Publication Date
JPH042374U true JPH042374U (xx) 1992-01-09
JP2520595Y2 JP2520595Y2 (ja) 1996-12-18

Family

ID=31553855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990042368U Expired - Fee Related JP2520595Y2 (ja) 1990-04-20 1990-04-20 光ディスク

Country Status (1)

Country Link
JP (1) JP2520595Y2 (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003482A1 (en) * 1991-08-02 1993-02-18 Mitsui Petrochemical Industries, Ltd. Hub for optical recording medium and optical recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200310A (ja) * 1985-03-01 1986-09-04 Fuji Electric Co Ltd 蒸気タ−ビンのフランジおよび締付ボルトの温度加減方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200310A (ja) * 1985-03-01 1986-09-04 Fuji Electric Co Ltd 蒸気タ−ビンのフランジおよび締付ボルトの温度加減方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003482A1 (en) * 1991-08-02 1993-02-18 Mitsui Petrochemical Industries, Ltd. Hub for optical recording medium and optical recording medium

Also Published As

Publication number Publication date
JP2520595Y2 (ja) 1996-12-18

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees