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1. 发明申请

WO01085631A1 GLASS COMPOSITION, SEALING GLASS FOR MAGNETIC HEAD AND MAGNETIC HEAD 审中-公开
标题翻译：玻璃组合物，用于磁头和磁头的密封玻璃
公开(公告)号：WO01085631A1
公开(公告)日：2001-11-15
申请号：PCT/JP2001/003780
申请日：2001-05-01
IPC分类号： C03C3/066 , C03C8/04 , C03C8/24 , G11B5/127 , G11B5/133 , G11B5/187 , G11B5/193
CPC分类号： G11B5/1335 , C03C3/066 , C03C8/04 , C03C8/24 , G11B5/1272 , G11B5/1878 , G11B5/193
摘要： A glass composition comprising 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3, 0 to 4 wt % of Al2O3, 0 to 5 wt % of at least one selected from Li2O, Na2O and K2O, and 0 to 15 wt % of at least one selected from MgO, CaO, SrO and BaO; and a magnetic head using the glass composition. The glass composition is substantially free of lead, and has a low softening point and good water resistance which are sufficient for use in various electronic devices.
摘要翻译：一种玻璃组合物，其包含0.5-14重量％的SiO 2，3至15重量％的B 2 O 3，4至22重量％的ZnO，55至90重量％的Bi 2 O 3，0至4重量％的Al 2 O 3，0至5重量％的选自Li 2 O，Na 2 O和K 2 O中的至少一种，以及0〜15重量％的选自MgO，CaO，SrO和BaO中的至少一种。和使用该玻璃组合物的磁头。玻璃组合物基本上不含铅，并且具有低的软化点和良好的耐水性，其足以用于各种电子设备中。

2. 发明申请

WO98037549A2 RECORDING AND/OR REPRODUCING DEVICE WITH A MAGNETIC HEAD HAVING AN OPTIMIZED CRYSTAL ORIENTATION, AND MAGNETIC HEAD HAVING AN OPTIMIZED CRYSTAL ORIENTATION 审中-公开
标题翻译：记录和/或复制具有优化晶体方位的磁头，以及具有优化晶体取向的磁头
公开(公告)号：WO98037549A2
公开(公告)日：1998-08-27
申请号：PCT/IB1998/000072
申请日：1998-01-19
IPC分类号： G11B5/127 , G11B5/193 , G11B5/255 , G11B5/40 , G11B5/53 , G11B15/61 , G11B15/62
CPC分类号： G11B5/193 , G11B5/255 , G11B5/40 , G11B5/53 , G11B15/61 , G11B15/62
摘要： Recording and/or reproducing device (1) having at least one magnetic head (8, 9) provided for scanning a magnetic record carrier (6) and having a lead-in core limb (34) and a lead-out core limb (35) each consisting of a monocrystalline ferrite and constituting a transducing gap (37), in which the lead-in core limb (34) has a mechanical main direction (39) in a -direction of its monocrystalline ferrite, which main direction encloses an acute angle theta E with respect to the transducing gap (37), and in which the lead-out core limb (35) has a mechanical main direction (41) in a -direction of its monocrystalline ferrite, which main direction encloses a second acute angle theta A with respect to the transducing gap (37), the two acute angles theta E and theta A in the magnetic head (8, 9) being determined in such a way that ferrite material is uniformly worn off the two core limbs (34, 35) at essentially the same wear rate (K) when there is a relative movement between a record carrier (6) and the magnetic head (8, 9).
摘要翻译：具有至少一个磁头（8,9）的记录和/或再现装置（1），用于扫描磁记录载体（6）并具有引入芯分支（34）和引出芯分支（35）），其构成单晶铁氧体并构成换向间隙（37），其中引入铁芯臂（34）在其单晶铁氧体的<100>方向具有机械主方向（39），主方向包围相对于换能间隙（37）的锐角θE，其中引出铁芯（35）在其单晶铁氧体的<100>方向上具有机械主方向（41），其主要方向相对于换能间隙（37）包围第二锐角θA，磁头（8,9）中的两个锐角θE和θA以这样一种方式确定：铁氧体材料被均匀地磨损当记录c之间存在相对运动时，两个核心肢体（34,35）具有基本上相同的磨损率（K）（6）和磁头（8,9）。

3. 发明申请

WO2012036680A1 MAGNETIC RECORDING HEAD HAVING A POLE TIP SHIELD 审中-公开
标题翻译：磁头记录头带有一个尖端的屏蔽
公开(公告)号：WO2012036680A1
公开(公告)日：2012-03-22
申请号：PCT/US2010/048912
申请日：2010-09-15
申请人： SEAGATE TECHNOLOGY LLC , GAO, Kaizhong , MELOCHE, Eric , XUE, Jianhua , LINVILLE, Eric, S. , HAN, Dehua , YIN, Huaqing
发明人： GAO, Kaizhong , MELOCHE, Eric , XUE, Jianhua , LINVILLE, Eric, S. , HAN, Dehua , YIN, Huaqing
IPC分类号： G11B5/127
CPC分类号： G11B5/193 , G11B5/1278 , G11B5/187 , G11B5/315
摘要： A write element including a pole tip shield is disclosed In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.
摘要翻译：公开了一种包括极尖屏蔽的写入元件。在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有在下轨道方向上减小的磁矩的分级侧屏蔽部分在另一个实施例中，极端护罩包括具有沿着极尖的侧边缘的部分长度延伸的缩短长度的侧屏蔽部分。在所示实施例中，侧屏蔽部分由成形体在极尖的前缘向前具有凹入部分。凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。

4. 发明申请

WO01050463A1 LOW INDUCTANCE, FERRITE SUB-GAP SUBSTRATE STRUCTURE FOR SURFACE FILM MAGNETIC RECORDING HEADS 审中-公开
标题翻译：表面电磁记录头的低电感，铁素体基底层结构
公开(公告)号：WO01050463A1
公开(公告)日：2001-07-12
申请号：PCT/US2000/035661
申请日：2000-12-29
IPC分类号： G11B5/65 , G11B5/127 , G11B5/193 , G11B5/29 , G11B5/31 , G11B5/48 , G11B5/584 , G11B5/596
CPC分类号： G11B5/23 , G11B5/127 , G11B5/1276 , G11B5/193 , G11B5/232 , G11B5/235 , G11B5/29 , G11B5/295 , G11B5/3116 , G11B5/4893 , G11B5/584 , G11B20/1211 , G11B20/1217 , Y10T29/49055 , Y10T29/49057
摘要： A thin film magnetic recording head is fabricated by forming a substrate from opposing ferrite blocks which have a ceramic member (14) bonded between them. This structure is then diced to form a plurality of columns, wherein each column has a ferrite/ceramic combination (16A,14; 16B,14; 16C,14; 16D;14; 16E,14). Each column represents a single channel in the completed head. A block of ceramic is then cut to match the columned structure and the two are bonded together. The bonded structure is then cut or ground until a head is formed, having ceramic disposed between each channel. A ferrite back-gap is then added to each channel, minimizing the reluctance of the flux path. The thin film is patterned on the head to optimize various channel configurations.
摘要翻译：通过从相对的铁氧体块形成基板来制造薄膜磁记录头，所述铁氧体块在它们之间具有接合的陶瓷构件（14）。然后将该结构切成多个柱，其中每个柱具有铁素体/陶瓷组合（16A，14; 16B，14; 16C，14; 16D; 14; 16E，14）。每列表示完成的头中的单个通道。然后切割一块陶瓷以匹配柱状结构，并将两个结合在一起。然后将接合结构切割或研磨直到形成头部，其中陶瓷设置在每个通道之间。然后将铁氧体背隙添加到每个通道，使磁通路径的磁阻最小化。该薄膜在头部被图案化以优化各种通道配置。

5. 发明申请

WO9837549A3 RECORDING AND/OR REPRODUCING DEVICE WITH A MAGNETIC HEAD HAVING AN OPTIMIZED CRYSTAL ORIENTATION, AND MAGNETIC HEAD HAVING AN OPTIMIZED CRYSTAL ORIENTATION 审中-公开
标题翻译：记录和/或复制具有优化晶体方位的磁头，以及具有优化晶体取向的磁头
公开(公告)号：WO9837549A3
公开(公告)日：1998-11-12
申请号：PCT/IB9800072
申请日：1998-01-19
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS NORDEN AB
发明人： TRAXLMAYR ULRICH , GAISBERGER OTHMAR
IPC分类号： G11B5/127 , G11B5/193 , G11B5/255 , G11B5/40 , G11B5/53 , G11B15/61 , G11B15/62
CPC分类号： G11B5/193 , G11B5/255 , G11B5/40 , G11B5/53 , G11B15/61 , G11B15/62
摘要： Recording and/or reproducing device (1) having at least one magnetic head (8, 9) provided for scanning a magnetic record carrier (6) and having a lead-in core limb (34) and a lead-out core limb (35) each consisting of a monocrystalline ferrite and constituting a transducing gap (37), in which the lead-in core limb (34) has a mechanical main direction (39) in a ∫100⊃-direction of its monocrystalline ferrite, which main direction encloses an acute angle υE with respect to the transducing gap (37), and in which the lead-out core limb (35) has a mechanical main direction (41) in a ∫100⊃-direction of its monocrystalline ferrite, which main direction encloses a second acute angle υA with respect to the transducing gap (37), the two acute angles υE and υA in the magnetic head (8, 9) being determined in such a way that ferrite material is uniformly worn off the two core limbs (34, 35) at essentially the same wear rate (K) when there is a relative movement between a record carrier (6) and the magnetic head (8, 9).

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