Title:
MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC TAPE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/100884
Kind Code:
A1
Abstract:
Provided is magnetic tape for which, in an environment that has a 23°C temperature and 50% relative humidity, an Alfesil wear value 45° of a magnetic-layer surface, measured at an Alfesil-prism inclination angle of 45°, is between 20 μm and 50 μm. The standard deviation of the Alfesil wear values of the magnetic-layer surface measured at respective Alfesil-prism inclination angles of 0°, 15°, 30°, and 45° is 30 μm or less. The above-noted Alfesil prism inclination angle is an angle formed between the longitudinal direction of the Alfesil prism and the width direction of the magnetic tape. The magnetic tape contains a polyethylene naphthalate support element having a widthwise Young's modulus of 10,000 MPa or greater.
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Inventors:
KASADA NORIHITO (JP)
Application Number:
PCT/JP2022/043998
Publication Date:
June 08, 2023
Filing Date:
November 29, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G11B5/70; G11B5/008; G11B5/584; G11B5/708; G11B5/73; G11B5/735; G11B5/78; G11B5/84; G11B21/10; G11B23/107
Foreign References:
| JP2022127014A | 2022-08-31 | |||
| JP2004288332A | 2004-10-14 | |||
| JP2006277838A | 2006-10-12 | |||
| JP2001093138A | 2001-04-06 | |||
| JP2002367151A | 2002-12-20 |
Attorney, Agent or Firm:
SIKS & CO. (JP)
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