JPH0352649B2 - - Google Patents

Info

Publication number
JPH0352649B2
JPH0352649B2 JP59112961A JP11296184A JPH0352649B2 JP H0352649 B2 JPH0352649 B2 JP H0352649B2 JP 59112961 A JP59112961 A JP 59112961A JP 11296184 A JP11296184 A JP 11296184A JP H0352649 B2 JPH0352649 B2 JP H0352649B2
Authority
JP
Japan
Prior art keywords
magnetic disk
coating film
light
coating
foreign matter
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 - Lifetime
Application number
JP59112961A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60258729A (ja
Inventor
Mitsuyoshi Koizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11296184A priority Critical patent/JPS60258729A/ja
Publication of JPS60258729A publication Critical patent/JPS60258729A/ja
Publication of JPH0352649B2 publication Critical patent/JPH0352649B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP11296184A 1984-06-04 1984-06-04 磁気デイスク塗膜の検査方法及びその装置 Granted JPS60258729A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11296184A JPS60258729A (ja) 1984-06-04 1984-06-04 磁気デイスク塗膜の検査方法及びその装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11296184A JPS60258729A (ja) 1984-06-04 1984-06-04 磁気デイスク塗膜の検査方法及びその装置

Publications (2)

Publication Number Publication Date
JPS60258729A JPS60258729A (ja) 1985-12-20
JPH0352649B2 true JPH0352649B2 (OSRAM) 1991-08-12

Family

ID=14599866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11296184A Granted JPS60258729A (ja) 1984-06-04 1984-06-04 磁気デイスク塗膜の検査方法及びその装置

Country Status (1)

Country Link
JP (1) JPS60258729A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736271Y2 (ja) * 1989-04-28 1995-08-16 ホーヤ株式会社 円盤体の欠陥検査装置
KR100944425B1 (ko) 2008-04-29 2010-02-25 주식회사 포스코 강판 표면의 결함마크 검출 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794636A (en) * 1980-12-05 1982-06-12 Fujitsu Ltd Defect detecting device of disk substrate
JPS6057241A (ja) * 1983-09-09 1985-04-03 Victor Co Of Japan Ltd 円盤状情報記録媒体の欠陥検査方法及びその装置

Also Published As

Publication number Publication date
JPS60258729A (ja) 1985-12-20

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Legal Events

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