JPH01103014U - - Google Patents

Info

Publication number
JPH01103014U
JPH01103014U JP19988987U JP19988987U JPH01103014U JP H01103014 U JPH01103014 U JP H01103014U JP 19988987 U JP19988987 U JP 19988987U JP 19988987 U JP19988987 U JP 19988987U JP H01103014 U JPH01103014 U JP H01103014U
Authority
JP
Japan
Prior art keywords
disk
outer peripheral
peripheral edge
whetstone
grindstone
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
JP19988987U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0743776Y2 (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 JP1987199889U priority Critical patent/JPH0743776Y2/ja
Publication of JPH01103014U publication Critical patent/JPH01103014U/ja
Application granted granted Critical
Publication of JPH0743776Y2 publication Critical patent/JPH0743776Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP1987199889U 1987-12-28 1987-12-28 ディスクの加工装置 Expired - Lifetime JPH0743776Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987199889U JPH0743776Y2 (ja) 1987-12-28 1987-12-28 ディスクの加工装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987199889U JPH0743776Y2 (ja) 1987-12-28 1987-12-28 ディスクの加工装置

Publications (2)

Publication Number Publication Date
JPH01103014U true JPH01103014U (US08063081-20111122-C00044.png) 1989-07-12
JPH0743776Y2 JPH0743776Y2 (ja) 1995-10-09

Family

ID=31490322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987199889U Expired - Lifetime JPH0743776Y2 (ja) 1987-12-28 1987-12-28 ディスクの加工装置

Country Status (1)

Country Link
JP (1) JPH0743776Y2 (US08063081-20111122-C00044.png)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172220A (ja) * 1985-01-25 1986-08-02 Sony Corp デイスク基板の製造方法
JPS62241841A (ja) * 1986-04-15 1987-10-22 Kiyokuei Kenma Kako Kk 糸面つき穴加工法ならびに加工用工具
JPS6313148A (ja) * 1985-05-27 1988-01-20 Toshihiko Hirabayashi 光磁気記録用フロツピ−デイスクのガラス基板の同心度を高める方法およびその装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172220A (ja) * 1985-01-25 1986-08-02 Sony Corp デイスク基板の製造方法
JPS6313148A (ja) * 1985-05-27 1988-01-20 Toshihiko Hirabayashi 光磁気記録用フロツピ−デイスクのガラス基板の同心度を高める方法およびその装置
JPS62241841A (ja) * 1986-04-15 1987-10-22 Kiyokuei Kenma Kako Kk 糸面つき穴加工法ならびに加工用工具

Also Published As

Publication number Publication date
JPH0743776Y2 (ja) 1995-10-09

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