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

US4837922A Process for manufacturing a composite magnetic head structure 失效
标题翻译：复合磁头结构的制造方法
公开(公告)号：US4837922A
公开(公告)日：1989-06-13
申请号：US213465
申请日：1988-06-27
申请人： Jirou Toriu , Katsuhiro Ohno , Jun Miyajima
发明人： Jirou Toriu , Katsuhiro Ohno , Jun Miyajima
IPC分类号： G11B5/265
CPC分类号： G11B5/2651 , Y10T29/49057
摘要： A composite magnetic head tip has a pair of head cores (2,3) facing each other and each having a center core (5,7) and a side core (4,6) which are separated by a magnetic gap (8,9) and are glass welded together at an apex portion (32). Each head core has a set of notches (14,14') which define a track width in the magnetic gap. Each notch is formed so that it begins at a confronting surface (29) where the center cores face each other, crosses through the magnetic gap, and ends on a sliding surface (28) for slidably contacting a magnetic medium. The notches end at a point which is directly above the welded position (19) provided at the apex portion of each head core. A process for manufacturing the composite magnetic head tip includes the steps of first forming a head core and then forming a set of notches therein, then forming another head core and forming another set of notches therein, aligning track widths and then glass molding each of the head cores together while at the same time filling the track notches with the same glass molding. An alternative process involves forming the notches in the head core blocks such that the lower surface (31) of the notches passes below the apex portion of the head core blocks, and applying glass molding to the notches and between the two head cores using a glass material that has a melting point substantially as low as the melting point of the glass material used for glass welding the side and center cores.
摘要翻译：复合磁头尖端具有彼此面对的一对磁头磁芯（2,3），每个具有中心磁芯（5,7）和侧磁芯（4,6），它们被磁隙（8,9 ），并且在顶部（32）处被玻璃焊接在一起。每个磁芯芯具有限定磁隙中的磁道宽度的一组凹口（14,14'）。每个凹口形成为使得其开始于中心芯彼此面对的相对表面（29），穿过磁隙，并且在滑动表面（28）上终止以滑动地接触磁性介质。切口在直接位于设置在每个头部芯部的顶点处的焊接位置（19）的上方终止。制造复合磁头头的方法包括以下步骤：首先形成头芯，然后在其中形成一组凹口，然后形成另一个头芯，并在其中形成另一组凹口，对准轨道宽度，然后玻璃成型头芯在一起，同时用相同的玻璃成型填充轨道凹口。替代方法包括在头芯块中形成凹口，使得凹口的下表面（31）穿过头芯块的顶部部分的下方，并且使用玻璃将玻璃模制件施加到凹口和两个头部芯部之间材料的熔点基本上低于用于玻璃焊接侧面和中心芯的玻璃材料的熔点。

2. 发明授权

US4334252A Magnetic recording and reproducing head arrangement 失效
标题翻译：磁记录和再现头排列
公开(公告)号：US4334252A
公开(公告)日：1982-06-08
申请号：US129409
申请日：1980-03-11
申请人： Jirou Toriu
发明人： Jirou Toriu
IPC分类号： G11B5/60 , G11B5/012 , G11B5/02 , G11B5/48 , G11B5/55 , G11B21/02
CPC分类号： G11B5/4893 , G11B5/4886 , G11B5/55
摘要： A magnetic recording and reproducing head arrangement utilizing the azimuth recording method which has an even number 2n of magnetic heads mounted in the head assembly. The carriage holds the head assembly at rest during recording or reproduction and moves the head assembly at right angles to the direction of transportation of the magnetic recording medium to change the tracks to be recorded or to be reproduced. The centers of the head gaps of the magnetic heads fall in a straight line which is at right angles to the direction of transportation of the magnetic medium and the separations therebetween are determined by the conditions that almost all the tracks are tracked by the magnetic heads, practically without leaving any unrecorded tracks within the recording region of the magnetic recording medium, and that magnetic interference between the magnetic heads is negligible. One half of the number of magnetic heads have a gap azimuth different to that of the other half of the number of magnetic heads so that the magnetizations on even ordinal and odd ordinal tracks have different directions from each other.
摘要翻译：利用安装在头组件中的偶数2n个磁头的方位记录方法的磁记录和再现头装置。托架在记录或再现期间将头部组件保持静止，并使头组件与磁记录介质的运输方向成直角移动，以改变要被记录或要再现的轨迹。磁头的头部间隙的中心落在与磁性介质的传送方向成直角的直线上，并且它们之间的间隔由几乎所有轨道被磁头跟踪的条件确定，实际上在磁记录介质的记录区域内没有留下任何未记录的轨迹，并且磁头之间的磁干扰可以忽略不计。数量的磁头的一半具有与磁头数量的另一半不同的间隙方位角，使得偶数顺序和奇数次轨道上的磁化彼此具有不同的方向。

3. 发明授权

US4602307A Compound type magnetic head 失效
标题翻译：复合型磁头
公开(公告)号：US4602307A
公开(公告)日：1986-07-22
申请号：US474340
申请日：1983-03-11
申请人： Jirou Toriu , Hiroshi Yamamoto , Shoyu Watanabe
发明人： Jirou Toriu , Hiroshi Yamamoto , Shoyu Watanabe
IPC分类号： G11B5/127 , G11B5/255
CPC分类号： G11B5/127 , G11B5/255
摘要： A compound type magnetic head comprising a main core (11) made of a magnetic material high in saturation flux density and low in inherent resistance, such as sendust or amorphous material and two auxiliary cores (12) sandwiching the main core (11) therebetween. The auxiliary cores (12) each consist of a first member made of a material high in inherent resistance such as ferrite and a second member made of a low melting point glass portion 42 formed on the front side of the first member, namely on the side abutting against the magnetic tape.
摘要翻译：一种复合型磁头，包括由高饱和磁通密度和固有电阻低的磁性材料制成的主芯（例如铁硅铝铁合金或非晶材料）以及夹在其间的主芯（11）的两个辅助芯（12）。辅助芯（12）各自由铁素体等固有电阻高的材料构成的第一构件和由形成在第一构件的前侧的低熔点玻璃部42构成的第二构件抵靠磁带。

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