专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4975322A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4975322A
公开(公告)日：1990-12-04
申请号：US364538
申请日：1989-06-12
申请人： Shozo Hideyama , Hajime Takeuchi
发明人： Shozo Hideyama , Hajime Takeuchi
IPC分类号： G11B5/62 , C09D5/23 , G11B5/708 , G11B5/71 , G11B5/73 , G11B5/735 , G11B5/738
CPC分类号： G11B5/7305 , G11B5/708 , G11B5/71 , G11B5/735 , Y10S428/90 , Y10T428/25 , Y10T428/265 , Y10T428/30
摘要： There is disclosed a magnetic recording medium comprising a support; a conductive layer, containing a conductive carbon, formed on either surface or both the surfaces of the support; and a magnetic layer formed on the conductive layer and containing at least a magnetic powder, a lubricant, a binder resin and 0.3 to 3 parts by weight of a conductive carbon based on 100 parts by weight of the magnetic powder.The magnetic recording medium according to this invention can maintain magnetic properties and has the excellent durability and runnabilities. In particular, the magnetic recording media of this invention can be usefully utilized for the magnetic recording as the media for floppy disks, computer tapes, highly accurate magnetic recording tapes and for high definition VTR the like which will be used very often repeatedly and will be exposed to severe circumstances.
摘要翻译：公开了一种包括支撑体的磁记录介质; 导电层，其包含形成在所述载体的任一表面或两个表面上的导电碳; 以及基于100重量份的磁粉，至少含有磁性粉末，润滑剂，粘合剂树脂和0.3〜3重量份导电性碳的磁性层。根据本发明的磁记录介质可以保持磁特性并具有优异的耐久性和运行性能。特别地，本发明的磁记录介质可以有效地用于作为用于软盘，计算机磁带，高精度磁记录磁带的介质的磁记录，以及将被重复使用的用于高清晰度VTR的介质。暴露在严重的情况下。

2. 发明授权

US4511617A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4511617A
公开(公告)日：1985-04-16
申请号：US497280
申请日：1983-05-23
申请人： Shozo Hideyama , Akio Ishizawa , Katuya Kumagai , Minoru Hashimoto
发明人： Shozo Hideyama , Akio Ishizawa , Katuya Kumagai , Minoru Hashimoto
IPC分类号： C09C1/48 , C09D5/23 , C09D7/12 , G11B5/706 , G11B5/716 , G11B5/738 , H01F1/11 , G11B5/70 , B32B7/02
CPC分类号： G11B5/716 , G11B5/70626 , G11B5/70642 , Y10S428/90 , Y10T428/256 , Y10T428/257 , Y10T428/30 , Y10T428/31507
摘要： Disclosed is a magnetic recording medium which comprises; a substrate; a first magnetic layer applied on the surface of the substrate and having an easy axis of magnetization in the in-plane direction of the substrate; and a second magnetic layer applied on the surface of the first magnetic layer, formed of ferrite series powder represented by the formula;AO.n(Fe.sub.1-m M.sub.m).sub.2 O.sub.3(wherein A is at least one metallic element selected from the group consisting of Ba, Sr, Pb and Ca; M is at least one substituent component selected from the group consisting of Co, Ti, Ni, Mn, Cu, Zn, In, Ge and Nb; m is 0.08 to 0.2; and n is 5.4 to 6.0), and having an easy axis of magnetization in a direction perpendicular to the plane of the substrate; said first magnetic layer having a surface resistivity of 1.times.10.sup.2 to 1.times.10.sup.8 .OMEGA.. In another embodiment, a conductive layer having a surface resistivity of 1.times.10.sup.7 .OMEGA. or smaller may be interposed between the substrate and the first magnetic layer.
摘要翻译：公开了一种磁记录介质，其包括：底物; 施加在基板的表面上并且在基板的面内方向上具有容易的磁化轴的第一磁性层; 以及施加在第一磁性层的表面上的第二磁性层，由由式表示的铁氧体系粉末形成; AO.n（Fe1-mMm）2O3（其中A是选自Ba，Sr，Pb和Ca中的至少一种金属元素; M是至少一种选自Co，Ti，Ni ，Mn，Cu，Zn，In，Ge和Nb; m为0.08〜0.2; n为5.4〜6.0），并且在与基板的平面垂直的方向上具有易磁化轴; 所述第一磁性层的表面电阻率为1×102〜1×10 8Ω。在另一个实施例中，可以在衬底和第一磁性层之间插入表面电阻率为1×10 7欧姆或更小的导电层。

3. 发明授权

US4264715A Method of preparing resist pattern 失效
标题翻译：制备抗蚀剂图案的方法
公开(公告)号：US4264715A
公开(公告)日：1981-04-28
申请号：US94048
申请日：1979-11-14
申请人： Akira Miura , Shozo Hideyama , Iwao Higashikawa
发明人： Akira Miura , Shozo Hideyama , Iwao Higashikawa
IPC分类号： G03F1/00 , G03F1/68 , G03F1/80 , G03F7/039 , G03F7/32 , H01L21/027 , G03C5/00
CPC分类号： G03F7/039 , G03F7/325
摘要： A method of preparing a fine and highly precise resist pattern comprising a step of forming a positive resist layer consisting of poly-(methacrylic anhydride) on a substrate, a step of irradiating the resist layer thus formed with a predetermined pattern of ionizing radiation and a step of developing the irradiated resist pattern with a developer comprising a solvent mixture composed of a polar organic solvent (A) capable of dissolving poly-(methyacrylic anhydride) and a non-solvent (B) incapable of dissolving poly-(methacrylic anhydride).
摘要翻译：一种制备精细且高精度的抗蚀剂图案的方法，包括在基板上形成由聚（甲基丙烯酸酐）组成的正性抗蚀剂层的步骤，以预定的电离辐射图案照射如此形成的抗蚀剂层的步骤和用包含由能够溶解聚（甲基丙烯酸酐）的极性有机溶剂（A）和不溶于聚（甲基丙烯酸酐）的非溶剂（B））组成的溶剂混合物的显影剂显影照射的抗蚀剂图案的步骤。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式