公开(公告)号：US06969550B2

公开(公告)日：2005-11-29

申请号：US10418333

申请日：2003-04-18

申请人： Tomoe Sato ,  Tetsuo Samoto ,  Shinya Yoshida ,  Hitoshi Wako ,  Takashi Kanou ,  Naoki Ikeda ,  Kazuhiko Suzuki ,  Seiichi Onodera

发明人： Tomoe Sato ,  Tetsuo Samoto ,  Shinya Yoshida ,  Hitoshi Wako ,  Takashi Kanou ,  Naoki Ikeda ,  Kazuhiko Suzuki ,  Seiichi Onodera

IPC分类号： G11B5/725

CPC分类号： G11B5/725 ,  Y10T428/3154

摘要： There is provided a magnetic recording medium which exhibits superior lubricating properties and superior tape-transport properties as well as superior robustness even in a low-temperature environment. A magnetic layer containing a ferromagnetic metal is formed on a nonmagnetic support, and a protecting film is formed on the magnetic layer. A lubricant auxiliary coating composition comprising an aromatic alcohol is applied to the protecting film to form a lubricant auxiliary layer, and a lubricant coating composition comprising a compound represented by the formula (1) below is applied to the lubricant auxiliary layer to form a lubricant layer. R1CH(COOR2)CH2COOR3  (1) wherein R1 represents an aliphatic alkyl group, an aliphatic alkenyl group, or a hydrogen atom, and each of R2 and R3 independently represents a fluoroalkyl group, a fluoroalkenyl group, a fluoropolyether group, or a hydrogen atom.

摘要翻译： 提供了一种磁性记录介质，即使在低温环境下也表现出优异的润滑性能和优异的带传输性能以及优异的鲁棒性。 在非磁性载体上形成含铁磁性金属的磁性层，在磁性层上形成保护膜。 将包含芳香醇的润滑剂辅助涂料组合物施加到保护膜上以形成润滑剂辅助层，并且将润滑剂涂料组合物施加到润滑剂辅助层上以形成润滑层 。 <？in-line-formula description =“在线公式”end =“lead”？> R <1> CH（COOR 2）2 其中R 1表示脂肪族烷基 基团，脂族烯基或氢原子，R 2和R 3各自独立地表示氟代烷基，氟烯基，氟聚醚基或 氢原子。

公开(公告)号：US06999278B2

公开(公告)日：2006-02-14

申请号：US10463370

申请日：2003-06-17

申请人： Hidetoshi Honda ,  Takashi Kanou ,  Hitoshi Wako ,  Satoshi Sekino ,  Ryoichi Hiratsuka

发明人： Hidetoshi Honda ,  Takashi Kanou ,  Hitoshi Wako ,  Satoshi Sekino ,  Ryoichi Hiratsuka

IPC分类号： G11B5/41

CPC分类号： G11B5/41 ,  Y10S15/12

摘要： There is provided a cleaning tape capable of attaining sufficient cleaning effects while preventing electrostatic discharge damage to magnetoresistive heads or changes in reproduced output due to excessive head wear. The cleaning tape includes a non-magnetic substrate 1, surface protrusions 6 formed on the non-magnetic substrate 1 with particles 2 having a particle diameter of 10 to 40 nm at a density of 300×104 to 5000×104 mm2, a metal evaporated film 3 (preferably an electrically conductive layer such as an alloy layer containing Co as a primary component, an Al layer or the like) having a thickness of 10 to 200 nm and an inorganic protection film 4 having a thickness of 3 to 50 nm formed on the metal evaporated film 3.

摘要翻译： 提供了能够获得足够的清洁效果的清洁带，同时防止由于头部磨损过大而导致的磁阻头的静电放电损坏或再现输出的变化。 清洁带包括非磁性基板1，形成在非磁性基板1上的表面突起6，颗粒2的粒径为10至40nm，密度为300×10 4至5000×10 5， 金属蒸镀膜3（优选为含有Co作为主要成分的合金层的导电层，Al层等），具有厚度 在金属蒸镀膜3上形成厚度为3〜50nm的无机保护膜4。

公开(公告)号：US06800374B2

公开(公告)日：2004-10-05

申请号：US10171730

申请日：2002-06-14

申请人： Hidetoshi Honda ,  Takashi Kanou ,  Hitoshi Wako ,  Satoshi Sekino ,  Ryoichi Hiratsuka

发明人： Hidetoshi Honda ,  Takashi Kanou ,  Hitoshi Wako ,  Satoshi Sekino ,  Ryoichi Hiratsuka

IPC分类号： G11B566

CPC分类号： G11B23/049 ,  Y10S15/12 ,  Y10T428/25 ,  Y10T428/265 ,  Y10T428/268

摘要： A cleaning tape comprising a nonmagnetic base film, an evaporated metal layer, specifically a magnetic layer or electroconductive layer, formed on the nonmagnetic base film, an inorganic protective film formed on the evaporated metal layer, and surface projections formed on the nonmagnetic base film by particles having a predetermined diameter and density. The tape has a low electric resistivity, a low head abrasion, and a sufficient cleaning effect suitable for cleaning a magnetoresistive type head.

摘要翻译： 一种清洁带，包括非磁性基膜，形成在非磁性基膜上的蒸发金属层，特别是磁性层或导电层，形成在蒸发金属层上的无机保护膜，以及形成在非磁性基膜上的表面突起，通过 具有预定直径和密度的颗粒。 磁带具有低电阻率，低磁头磨损，以及适用于清洁磁阻型磁头的足够清洁效果。

公开(公告)号：US06696183B2

公开(公告)日：2004-02-24

申请号：US09949742

申请日：2001-09-10

申请人： Seiichi Onodera ,  Shinya Yoshida ,  Kazunari Motohashi ,  Takashi Kanou ,  Tomoe Iwano

发明人： Seiichi Onodera ,  Shinya Yoshida ,  Kazunari Motohashi ,  Takashi Kanou ,  Tomoe Iwano

IPC分类号： G11B566

CPC分类号： G11B5/7305 ,  G11B5/70621 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/265

摘要： In the metallic thin film magnetic recording medium having the magnetic layer formed on a main face of a nonmagnetic supporting body according to vacuum thin film formation technology, the thickness of the nonmagnetic supporting body is 5 &mgr;m or less, the thickness of the magnetic layer is 20 nm-100 nm and a lining layer 20 nm-200 am in thickness is formed of metal, non-metal or alloy of these materials or oxide compound thereof according to vacuum thin film formation technology. Light transmittance is 5% or less and permeating water vapor amount is 5 g/m2·day or less. The lining layer and the back layer are formed successively on a main face opposite to the magnetic layer formation face. The relative roughness factor (Ra) of the topmost surface of the lining layer formation face is 2-15 nm.

摘要翻译： 在根据真空薄膜形成技术在非磁性支撑体的主面上形成有磁性层的金属薄膜磁记录介质中，非磁性支撑体的厚度为5μm以下，磁性层的厚度为 根据真空薄膜形成技术，由这些材料的金属，非金属或合金或其氧化物化合物形成厚度为20nm-200nm的衬里层。 透光率为5％以下，渗透水蒸气量为5g / m 2·天以下。 衬里层和背层依次形成在与磁性层形成面相对的主面上。 衬层形成面的最上表面的相对粗糙度（Ra）为2-15nm。