公开(公告)号：US4976020A

公开(公告)日：1990-12-11

申请号：US398303

申请日：1989-08-24

申请人： Yasuo Nagashima ,  Haruo Soeda ,  Masamichi Sato ,  Takashi Kubo

发明人： Yasuo Nagashima ,  Haruo Soeda ,  Masamichi Sato ,  Takashi Kubo

IPC分类号： B24B1/00 ,  B24B31/112

CPC分类号： B24B31/112 ,  B24B1/005 ,  Y10T29/47 ,  Y10T407/10 ,  Y10T82/11

摘要： A magnetic sheet polishing device including a scraper having a sliding surface and a downstream side surface that is nearly perpendicular or at an acute angle to the sliding surface to ensure that magnetic material powder spontaneously falls away from and does not adhere again to the magnetic material surface of the magnetic sheet after being scraped off by the scraper. Additionally, the scraper has a diagonal groove or a diagonal step formed in a side surface to check for wear of the sliding surface.

摘要翻译： 一种磁性片材抛光装置，包括具有滑动表面和与滑动表面几乎垂直或成锐角的下游侧表面的刮刀，以确保磁性材料粉末自发地脱离并且不再粘附到磁性材料表面 被刮刀刮掉后的磁性片。 此外，刮刀具有形成在侧表面中的对角槽或对角台阶，以检查滑动表面的磨损。

公开(公告)号：US4661871A

公开(公告)日：1987-04-28

申请号：US613065

申请日：1984-05-22

申请人： Yasuo Nagashima

发明人： Yasuo Nagashima

IPC分类号： G11B17/34 ,  G11B5/82 ,  G11B17/32 ,  G11B5/016 ,  G11B5/012 ,  G11B5/54 ,  G11B23/03

CPC分类号： G11B5/825 ,  G11B17/32

摘要： A guide system is used with a rotary magnetic recording sheet applicable to a system and method which includes a regulator plate and performs magnetic recording or playback by protruding a magnetic head beyond a regulation level of a recording surface of a rotatable sheet of magnetic recording medium. The regulator plate is located to contact the back surface of the magnetic recording medium and held in such a relative position to the recording medium that the regulation level of the recording surface of the recording medium is protruded toward the recording surface beyond a non-regulation level of the recording surface.

摘要翻译： 引导系统与适用于包括调节板的系统和方法的旋转磁记录片一起使用，并通过将磁头突出超过可旋转的磁记录介质的记录表面的调节水平来执行磁记录或重放。 调节板被定位成接触磁记录介质的背面并保持在与记录介质相对的相对位置，使得记录介质的记录表面的调节水平朝向记录表面突出超过非调节水平 的记录表面。

公开(公告)号：US4646179A

公开(公告)日：1987-02-24

申请号：US613066

申请日：1984-05-22

申请人： Yasuo Nagashima ,  Akira Kasuga

发明人： Yasuo Nagashima ,  Akira Kasuga

IPC分类号： G11B5/73 ,  G11B5/82 ,  G11B5/016 ,  G11B5/012 ,  G11B5/54 ,  G11B23/03

CPC分类号： G11B5/825 ,  Y10T428/265 ,  Y10T428/31518

摘要： A flexible magnetic disc for use in combination with a magnetic head assembly which includes a regulator plate and performs magnetic recording or playback by protruding a magnetic head beyond a predetermined support level of a rotatable sheet of magnetic recording medium at least by an amount which is substantially equal to a total thickness of the recording medium. Assuming that the recording medium has a total thickness of t millimeters (mm) and a Young's modulus of E grams per square millimeter (g/mm.sup.2), a product of the Youngs's modulus E and the third power of the total thickness t, i.e. Et.sup.3, lies in a range between a lower limit of 2.5 g.mm and an upper limit of 36 g.mm inclusive of the lower and upper limits.

摘要翻译： 一种用于与磁头组件组合使用的柔性磁盘，磁头组件包括调节板，并通过将磁头突出超过可旋转的磁性记录介质片的预定支撑水平来进行磁记录或重放，至少基本上 等于记录介质的总厚度。 假设记录介质具有t毫米（mm）的总厚度和E克/平方毫米（g / mm 2）的杨氏模量，杨氏模量E与总厚度t的第三功率的乘积即Et 3 位于2.5g.mm的下限和36g.mm的上限（包括下限和上限）之间的范围内。