| 发明名称 |
Leader tape and magnetic tape cartridge using the same |
| 摘要 |
A leader tape comprising a support and a coating layer containing powder and a binder, wherein at least one surface of the leader tape has a center line average surface roughness (Ra) of from 10 to 60 nm, and depression hardness (DH) defined by the following equation (1) of from 60 to 140 kg/mm<SUP>2 </SUP>(0.588 to 1.372 GPa): <?in-line-formulae description="In-line Formulae" end="lead"?>DH=3.7926x10<SUP>-2</SUP>[Pmax/(Hmax)<SUP>2</SUP>](kg/mm<SUP>2</SUP>) (1) <?in-line-formulae description="In-line Formulae" end="tail"?> wherein Pmax is a maximum load and Hmax is a maximum displacement amount of an indenter.
|
| 申请公布号 |
US2005214595(A1) |
申请公布日期 |
2005.09.29 |
| 申请号 |
US20050091401 |
申请日期 |
2005.03.29 |
| 申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
HAYAKAWA SATORU |
| 分类号 |
G11B5/627;B32B1/00;G11B5/70;G11B23/02;G11B23/037;G11B23/107;G11B23/26;(IPC1-7):G11B23/02 |
主分类号 |
G11B5/627 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
