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1. 发明授权

EP0516288B1 Magnetic head and method for making such a head 失效
标题翻译：这种头的磁头及其制造方法
公开(公告)号：EP0516288B1
公开(公告)日：1996-09-11
申请号：EP92303899.6
申请日：1992-04-30
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Denison, Edward Birgil , Kahwaty, Vincent Noel , Steving, Gerald
IPC分类号： G11B5/31
CPC分类号： G11B5/3106 , G11B5/313 , G11B5/3143 , Y10T29/49041 , Y10T29/49044

2. 发明授权

EP0130496B1 Magnetic field sensing device 失效
标题翻译：磁场传感装置
公开(公告)号：EP0130496B1
公开(公告)日：1986-09-17
申请号：EP84107150.9
申请日：1984-06-22
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Klokholm, Erik , Mc Guire, Thomas Roche
IPC分类号： G01R33/06 , H01L43/08
CPC分类号： G11B5/3903 , H01L43/10

3. 发明公开

EP0068131A2 A magnetic recording medium 失效
标题翻译：磁铁Aufzeichnungsmedium。
公开(公告)号：EP0068131A2
公开(公告)日：1983-01-05
申请号：EP82104238.9
申请日：1982-05-14
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Klokholm, Erik , Herd, Sigrid Renee
IPC分类号： H01F10/16 , H01F41/18 , G11B5/64
CPC分类号： G11B5/656 , H01F41/18 , Y10S428/928 , Y10T428/12431
摘要： This invention relates to a magnetic recording medium comprising a sputtered polycrystalline film of material having the formula Co x Pt y where x (Co) is up to 90 atomic percent of said material and y (Pt) is from 10 to 30 atomic of said material. The film has a magnetostriction value of from -35 x 10- 8 to a value near substantially zero magnetostriction in the range of ± 10 x 10- 6 . The material has a coercivity H c of from 500 to 2000 oersteds with a saturation magnetization of 400 gauss to 15,000 gauss.
摘要翻译：本发明涉及一种磁记录介质，其包括具有式CoxPty的材料的溅射多晶膜，其中x（Co）为所述材料的至多90原子％，y（Pt）为所述材料的10至30原子。该膜具有从-35×10 -6的磁致伸缩值到在+/- 10×10 -6的范围内接近基本为零的磁致伸缩的值。该材料的矫顽力Hc为500至2000奥斯特，饱和磁化强度为400高斯至15,000高斯。

4. 发明公开

EP0742549A3 Magneto-resistive read/write tape head 失效
标题翻译：磁阻器Bandlese- / Schreibkopf
公开(公告)号：EP0742549A3
公开(公告)日：1997-02-26
申请号：EP96302812.1
申请日：1996-04-22
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Aboaf, Joseph Adam , Denison, Edward Virgil , Friedman, Jules David , Kahwaty, Vincent Noel , Kluge, Herman Carl, II
IPC分类号： G11B5/39 , G11B5/11 , G11B5/255 , G11B5/40
CPC分类号： G11B5/3903 , G11B5/11 , G11B5/17 , G11B5/3133 , G11B5/3146 , G11B5/3163 , G11B5/3967 , G11B5/40
摘要： A head (10) is provided for reading and writing to tape media (48) along a tape head face. The tape head comprises a plurality of modules, each module comprising a read element (54) and a write element (52) spaced apart and terminating at the tape head face and formed over a substrate (12). The read element comprises a soft film bias layer (24) and a hard film bias layer (25) butted against the SFB layer. The write element comprises two pole tips (14,16) spaced apart by a gap (22). The tape head further includes a plurality of activating conducting coil turns (20) operatively associated with the write element and covered by a cross-linked photoresist and positioned between the gap and one of the pole tips and set back from the tape head face. The tape head has at least one of the following elements: (a) a wear shield (34) between the read element and the write element for limiting wear of the gap between the two pole tips, the wear shield being grounded for decoupling read and write functions of the tape head, for allowing same module read/servo/write functions simultaneously, and for grounding static charge from the tape media; (b) a layer of electrically conductive and corrosion-resistant material (62), such as rhodium, under the hard film bias layer to reduce its resistance; and (c) a non-activating dummy coil turn (120,220) closer to the pole tips than the activating coil turns for defining a forward termination of the cross-linked photoresist (38a) between the activating coil turns and the tape head face to thereby provide improved ease of processability.
摘要翻译：提供头（10）用于沿着磁带头表面读取和写入磁带介质（48）。带头包括多个模块，每个模块包括读取元件（54）和间隔开并终止于磁带头表面并形成在衬底（12）上方的写入元件（52）。读取元件包括与SFB层对接的软膜偏置层（24）和硬膜偏置层（25）。写入元件包括由间隙（22）间隔开的两个极尖（14,16）。带头还包括多个激活导电线圈匝（20），其与写入元件可操作地相关联并被交联的光致抗蚀剂覆盖，并且定位在间隙和极尖之一之间并从磁带头表面返回。磁带头具有以下元件中的至少一个：（a）读取元件和写入元件之间的耐磨屏蔽件（34），用于限制两个极尖之间的间隙的磨损，所述耐磨屏蔽层被接地以用于去耦读取和磁带头的写入功能，用于同时允许相同的模块读取/伺服/写入功能，并用于从磁带介质接地静电; （b）在硬膜偏压层下方的一层导电和耐腐蚀材料（62），例如铑，以降低其电阻; 和（c）比激活线圈转动更靠近磁极尖的非激活虚线圈匝（120,220），用于限定激活线圈匝和磁头表面之间的交联光致抗蚀剂（38a）的前端，从而提供可加工性的改善。

5. 发明公开

EP0516288A2 Magnetic head and method for making such a head 失效
标题翻译： Magnetkopf und Herstellungsverfahren eines solchen Kopfes。
公开(公告)号：EP0516288A2
公开(公告)日：1992-12-02
申请号：EP92303899.6
申请日：1992-04-30
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Denison, Edward Birgil , Kahwaty, Vincent Noel , Steving, Gerald
IPC分类号： G11B5/31
CPC分类号： G11B5/3106 , G11B5/313 , G11B5/3143 , Y10T29/49041 , Y10T29/49044
摘要： An interleaved bi-directional magnetic tape head for contact recording has a stripe poletip 30 in the form of a thin film of a soft magnetic material deposited onto a magnetic ferrite substrate 22. A second thin film polepiece 40 is deposited over a gap region 26. A closure block 24 of a non-magnetic ceramic encloses the layers together with leveling insulation layers 32, 34 and deposited activating conductor turns 36. The stripe poletip extends for a distance just short of the first conductor turn and provides a balancing of the saturation moment of the pole pieces and provides for better recording capability, especially when operating in a trailing magnetic ferrite mode.
摘要翻译：用于接触记录的交错双向磁带头具有沉积在磁性铁氧体衬底22上的软磁材料薄膜形式的条纹poletip 30.第二薄膜电极40沉积在间隙区域26上。非磁性陶瓷的闭合块24将层与层压绝缘层32,34以及沉积的激活导体匝36一起包围。条纹poletip延伸出刚好短于第一导体匝的距离，并提供饱和时刻的平衡并且提供更好的记录能力，特别是当以拖曳磁性铁氧体模式操作时。

6. 发明公开

EP0412071A3 Very low noise magnetoresistive sensor for high density media applications 失效
标题翻译：非常低噪声磁传感器用于高密度介质应用
公开(公告)号：EP0412071A3
公开(公告)日：1991-03-13
申请号：EP90850197.6
申请日：1990-05-21
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Kahwaty, Vincent Noel , Nix, James Lamar , Shelledy, Frank Boyd
IPC分类号： G11B5/39 , G11B5/37
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/399 , H01L43/08
摘要： A soft film biased magnetoresistive sensor (10) is fabricated to have reduced Barkhausen noise. The magnetic ratio of the film layers (14 and 18) is controlled to be in the range of 1.7 to 1.95 and the optimum bias point is controlled to be in the range of 35 and 41 degrees.

7. 发明授权

EP0032180B1 Amorphous magnetic alloy containing at least Co and Ti 失效
标题翻译：包含最低限度的非晶磁合金和TI
公开(公告)号：EP0032180B1
公开(公告)日：1984-06-27
申请号：EP80107220.8
申请日：1980-11-20
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Klokholm, Erik
IPC分类号： H01F1/04 , H01F10/16
CPC分类号： H01F10/132 , C22C45/04 , G11B5/31 , H01F1/04

8. 发明授权

EP0412071B1 Very low noise magnetoresistive sensor for high density media applications 失效
标题翻译：一种磁致电阻传感器具有非常低的噪声在媒体具有高记录密度的用途。
公开(公告)号：EP0412071B1
公开(公告)日：1994-09-14
申请号：EP90850197.6
申请日：1990-05-21
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Kahwaty, Vincent Noel , Nix, James Lamar , Shelledy, Frank Boyd
IPC分类号： G11B5/39 , G11B5/37
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/399 , H01L43/08

9. 发明公开

EP0412071A2 Very low noise magnetoresistive sensor for high density media applications 失效
标题翻译：一种磁致电阻传感器具有非常低的噪声在媒体具有高记录密度的用途。
公开(公告)号：EP0412071A2
公开(公告)日：1991-02-06
申请号：EP90850197.6
申请日：1990-05-21
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Kahwaty, Vincent Noel , Nix, James Lamar , Shelledy, Frank Boyd
IPC分类号： G11B5/39 , G11B5/37
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/399 , H01L43/08
摘要： A soft film biased magnetoresistive sensor (10) is fabricated to have reduced Barkhausen noise. The magnetic ratio of the film layers (14 and 18) is controlled to be in the range of 1.7 to 1.95 and the optimum bias point is controlled to be in the range of 35 and 41 degrees.
摘要翻译：软膜偏置磁阻传感器（10）被制造成具有降低的巴克豪森噪音。薄膜层（14和18）的磁比率被控制为在1.7至1.95和最佳偏置点被控制为在35名41度的范围内。

10. 发明公开

EP0032180A3 Amorphous magnetic alloy containing Co and Ti and memory device using said alloy 失效
标题翻译：包含CO和TI的非晶磁合金和使用合金的存储器件
公开(公告)号：EP0032180A3
公开(公告)日：1981-08-05
申请号：EP80107220
申请日：1980-11-20
申请人： International Business Machines Corporation
发明人： Aboaf, Joseph Adam , Klokholm, Erik
IPC分类号： H01F01/04 , H01F10/16
CPC分类号： H01F10/132 , C22C45/04 , G11B5/31 , H01F1/04
摘要： An amorphous alloy of cobalt and from about 14 to 30 atomic percent of titanium can be deposited upon a substrate by r.f. sputtering. The properties of such layers are similar to those of transition metal-metalloid glasses with low He and their resistivity is in the 100-200 micro-ohm centimeter range. However, these layers have very low magnetostriction, are more stable to thermal annealing and more corrosion resistant than permalloy plated films. They can be employed as magnetic yoke layers in magnetic recording heads or in bubble propagation structures of bubble memories. FeCoTi, NiCoTi and FeNiCoTi amorphous alloys have similar characteristics to CoTi alloys for Ti concentrations on the order of 14 to 30 atomic percent where the ratio of Co to Fe and/or Ni is greater than or equal to about 1 to 1.

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