JPS6444453U - - Google Patents

Info

Publication number
JPS6444453U
JPS6444453U JP14026687U JP14026687U JPS6444453U JP S6444453 U JPS6444453 U JP S6444453U JP 14026687 U JP14026687 U JP 14026687U JP 14026687 U JP14026687 U JP 14026687U JP S6444453 U JPS6444453 U JP S6444453U
Authority
JP
Japan
Prior art keywords
reference level
pass filter
reproduction signal
scratch
measuring device
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.)
Pending
Application number
JP14026687U
Other languages
English (en)
Japanese (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 JP14026687U priority Critical patent/JPS6444453U/ja
Publication of JPS6444453U publication Critical patent/JPS6444453U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP14026687U 1987-09-14 1987-09-14 Pending JPS6444453U (US07943777-20110517-C00090.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14026687U JPS6444453U (US07943777-20110517-C00090.png) 1987-09-14 1987-09-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14026687U JPS6444453U (US07943777-20110517-C00090.png) 1987-09-14 1987-09-14

Publications (1)

Publication Number Publication Date
JPS6444453U true JPS6444453U (US07943777-20110517-C00090.png) 1989-03-16

Family

ID=31404279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14026687U Pending JPS6444453U (US07943777-20110517-C00090.png) 1987-09-14 1987-09-14

Country Status (1)

Country Link
JP (1) JPS6444453U (US07943777-20110517-C00090.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7661187B2 (en) 2004-12-15 2010-02-16 Hitachi Global Storage Technologies Netherlands B.V. Manufacturing method for magnetic disk drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7661187B2 (en) 2004-12-15 2010-02-16 Hitachi Global Storage Technologies Netherlands B.V. Manufacturing method for magnetic disk drive

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