JPS6460821A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6460821A JPS6460821A JP21873187A JP21873187A JPS6460821A JP S6460821 A JPS6460821 A JP S6460821A JP 21873187 A JP21873187 A JP 21873187A JP 21873187 A JP21873187 A JP 21873187A JP S6460821 A JPS6460821 A JP S6460821A
- Authority
- JP
- Japan
- Prior art keywords
- refractive index
- deltan
- ntd
- nmd
- magnetic layer
- 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
Links
Abstract
PURPOSE:To obtain excellent characteristics without having edge dislodgment by combining a nonmagnetic base and magnetic layer having specific properties. CONSTITUTION:The nonmagnetic base is formed of a film essentially consisting of polyethylene terephthalate having >=6 cutting fitness index Y and imparts the energy up to <=10% yield elongation and <=1.0kg/mm<2> yield point to the magnetic layer, where Y=-6.36-28.4xi+0.254xc-26DELTAn. In the formula, xi is the ratio I(110)/I(100) of the peak intensity I(110) of X-ray diffraction (110) face and the peak intensity I(100) of X-ray diffraction (100) face; xc is a crystallite size; DELTAn is the difference in the refractive index expressed by DELTAn= nMD-nTD (where nMD is a longitudinal refractive index and nTD is a transverse refractive index). The clean cut surface and the high quality are thereby obtd. and the powder dislodgment, edge damage and drop-out are substantially eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21873187A JPH0731803B2 (en) | 1987-08-31 | 1987-08-31 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21873187A JPH0731803B2 (en) | 1987-08-31 | 1987-08-31 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6460821A true JPS6460821A (en) | 1989-03-07 |
JPH0731803B2 JPH0731803B2 (en) | 1995-04-10 |
Family
ID=16724551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21873187A Expired - Fee Related JPH0731803B2 (en) | 1987-08-31 | 1987-08-31 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0731803B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5512538A (en) * | 1991-03-22 | 1996-04-30 | Canon Kabushiki Kaisha | Metal oxide material with Ln, Sr, Cu, Re, O, and optionally Ca |
WO2014041827A1 (en) * | 2012-09-14 | 2014-03-20 | 富士フイルム株式会社 | Aromatic polyester film, back sheet for solar cell module, and solar cell module |
-
1987
- 1987-08-31 JP JP21873187A patent/JPH0731803B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5512538A (en) * | 1991-03-22 | 1996-04-30 | Canon Kabushiki Kaisha | Metal oxide material with Ln, Sr, Cu, Re, O, and optionally Ca |
US5583093A (en) * | 1991-03-22 | 1996-12-10 | Canon Kabushiki Kaisha | Metal oxide material with Ln, Sr, Cu, O, optionally Ca, and at least one of Fe, Co, Ti, V, Ge, Mo, and W |
WO2014041827A1 (en) * | 2012-09-14 | 2014-03-20 | 富士フイルム株式会社 | Aromatic polyester film, back sheet for solar cell module, and solar cell module |
Also Published As
Publication number | Publication date |
---|---|
JPH0731803B2 (en) | 1995-04-10 |
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Legal Events
Date | Code | Title | Description |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |