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1. 发明授权

US5079086A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US5079086A
公开(公告)日：1992-01-07
申请号：US596118
申请日：1990-10-11
申请人： John M. Burns , Walter Crooks , Wai C. Leung , Randall G. Simmons , Clinton D. Snyder
发明人： John M. Burns , Walter Crooks , Wai C. Leung , Randall G. Simmons , Clinton D. Snyder
IPC分类号： G11B5/708 , C09D5/23 , C09D161/04 , C09D161/06 , C09D163/00 , G11B5/70 , G11B5/702 , G11B5/71 , G11B5/712
CPC分类号： G11B5/71 , G11B5/7013 , G11B5/7028 , Y10S428/90 , Y10T428/257
摘要： The magnetic recording layer of a recording medium contains a film-forming resin, magnetic particles, poly(ethyleneimine), and an amionic surfactant.

2. 发明申请

US20100142080A1 METHODS AND APPARATUS TO DETECT SURFACE CHARACTERISTICS ON MAGNETIC READ/WRITE HEADS 有权
标题翻译：检测磁头读/写头的表面特性的方法和装置
公开(公告)号：US20100142080A1
公开(公告)日：2010-06-10
申请号：US12329719
申请日：2008-12-08
申请人： Youping Deng , Randall G. Simmons , Wing T. Tang , Huiping Yang
发明人： Youping Deng , Randall G. Simmons , Wing T. Tang , Huiping Yang
IPC分类号： G11B21/02
CPC分类号： G11B5/455 , G11B5/40 , G11B5/6029 , G11B5/6064 , G11B5/607
摘要： A method and apparatus for detecting predetermined surface characteristics in head gimbal assemblies to improve hard disk drive reliability. The predetermined surface characteristics include head slider protrusions such as scratches or contamination that can cause damage to the head or disk in hard drives. By detecting these protrusions, those drives with an increased chance of failure can be removed from a test group, thereby increasing the quality and reliability of the remaining disk drives. The invention provides a method of detecting these protrusions that is a more practical option than using a scanning electron microscope (SEM) to inspect each head slider.
摘要翻译：一种用于检测头万向架组件中的预定表面特性以提高硬盘驱动器可靠性的方法和装置。预定的表面特征包括头部滑块突起，例如可能在硬盘驱动器中损坏头部或盘的划痕或污染。通过检测这些突起，可以从测试组中移除具有增加的故障几率的驱动器，从而提高剩余磁盘驱动器的质量和可靠性。本发明提供一种检测这些突起的方法，这比使用扫描电子显微镜（SEM）来检查每个磁头滑块更实际的选择。

3. 发明授权

US5949624A Horizontal shared-pole magnetic read/write head having polarization conductor disabling write pole 失效
标题翻译：具有极化导体禁止写入极的水平共享磁极读/写头
公开(公告)号：US5949624A
公开(公告)日：1999-09-07
申请号：US943779
申请日：1997-10-03
申请人： Randall G. Simmons , Robert E. Jones, Jr.
发明人： Randall G. Simmons , Robert E. Jones, Jr.
IPC分类号： G11B5/00 , G11B5/23 , G11B5/245 , G11B5/31 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/23 , G11B5/3183 , G11B5/3906 , G11B5/3967 , G11B2005/0008 , G11B2005/0013 , G11B2005/3996 , G11B5/245
摘要： An inductive-write magnetoresistive-read horizontal head for magnetic recording having two polarization conductors. The two polarization conductors are used to simultaneously activate a MR sensor and to disable the write head during the read back process to eliminate the secondary read back signal from the inductive-write head. During the read process, the current through a first conductor biases the MR stripe while current through the second conductor generates an applied field to switch the magnetization of the Permalloy (NiFe) in the write head pole and reduce the permeability. The head incorporates write-wide read-narrow head attributes and has the reliability advantages associated with yoke or recessed MR or GMR structures. The magnetoresistive stripe may be disposed directly in the gap of the heads or it may be recessed.
摘要翻译：用于具有两个偏振导体的磁记录的感应写入磁阻读取水平头。两个偏振导体用于同时激活MR传感器并且在回读过程期间禁用写入头以消除来自电感写入头的二次回读信号。在读取过程中，通过第一导体的电流偏置MR条，同时通过第二导体的电流产生施加的场，以切换写磁头极中的坡莫合金（NiFe）的磁化并降低磁导率。头部包含写入宽度窄的头部属性，并具有与磁轭或嵌入式MR或GMR结构相关的可靠性优势。磁阻条可以直接设置在磁头的间隙中，也可以是凹陷的。

4. 发明授权

US07982987B2 Methods and apparatus to detect surface characteristics on magnetic read/write heads 有权
标题翻译：检测磁读/写磁头表面特性的方法和装置
公开(公告)号：US07982987B2
公开(公告)日：2011-07-19
申请号：US12329719
申请日：2008-12-08
申请人： Youping Deng , Randall G. Simmons , Wing T. Tang , Huiping Yang
发明人： Youping Deng , Randall G. Simmons , Wing T. Tang , Huiping Yang
IPC分类号： G11B27/36 , G11B21/02 , G11B5/02
CPC分类号： G11B5/455 , G11B5/40 , G11B5/6029 , G11B5/6064 , G11B5/607
摘要： A method and apparatus for detecting predetermined surface characteristics in head gimbal assemblies to improve hard disk drive reliability. The predetermined surface characteristics include head slider protrusions such as scratches or contamination that can cause damage to the head or disk in hard drives. By detecting these protrusions, those drives with an increased chance of failure can be removed from a test group, thereby increasing the quality and reliability of the remaining disk drives. The invention provides a method of detecting these protrusions that is a more practical option than using a scanning electron microscope (SEM) to inspect each head slider.
摘要翻译：一种用于检测头万向架组件中的预定表面特性以提高硬盘驱动器可靠性的方法和装置。预定的表面特征包括头部滑块突起，例如可能在硬盘驱动器中损坏头部或盘的划痕或污染。通过检测这些突起，可以从测试组中移除具有增加的故障几率的驱动器，从而提高剩余磁盘驱动器的质量和可靠性。本发明提供一种检测这些突起的方法，这比使用扫描电子显微镜（SEM）来检查每个磁头滑块更实际的选择。

5. 发明授权

US6046882A Solder balltape and method for making electrical connection between a head transducer and an electrical lead 失效
标题翻译：焊接球形体和用于在头部换能器和电气引线之间进行电气连接的方法
公开(公告)号：US6046882A
公开(公告)日：2000-04-04
申请号：US678654
申请日：1996-07-11
申请人： Surya Pattanaik , Timothy C. Reiley , Randall G. Simmons
发明人： Surya Pattanaik , Timothy C. Reiley , Randall G. Simmons
IPC分类号： B23K35/14 , H05K3/34 , G11B5/48 , H01L21/44 , H01R43/02
CPC分类号： H05K3/3442 , H05K2203/041 , H05K2203/107 , H05K3/3494 , Y02P70/613 , Y10T29/49211
摘要： A solder balltape comprised of an elongated tail with a ball of solder formed at one end. A plurality of the balltape structures are positioned on a carrier strip of solder. The balltape is positioned in contact with a transducer pad on a magnetic read/write slider and an electrical lead pad. A pulse of focused laser radiation is directed at the ball part of the balltape and a right angle fillet joint is formed. A subsequent laser pulse or a sharpened blade is used to remove the tail from the newly formed fillet joint.
摘要翻译：焊料球形体由细长的尾部组成，其一端形成有焊料球。多个球形结构位于焊料载体条上。球形电极定位成与磁读/写滑块和电引线板上的换能器垫接触。聚焦激光辐射的脉冲指向球形球的球部，形成直角圆角接头。随后的激光脉冲或锋利的刀片用于从新形成的圆角接头去除尾部。

6. 发明授权

US5742452A Low mass magnetic recording head and suspension 失效
标题翻译：低质量磁记录头和悬架
公开(公告)号：US5742452A
公开(公告)日：1998-04-21
申请号：US599401
申请日：1996-01-10
申请人： Randall G. Simmons , Joseph J. Fatula, Jr.
发明人： Randall G. Simmons , Joseph J. Fatula, Jr.
IPC分类号： G11B5/31 , G11B5/40 , G11B5/48 , G11B5/58 , G11B5/596
CPC分类号： G11B5/3106 , G11B5/3133 , G11B5/3163 , G11B5/3183 , G11B5/40 , G11B5/484 , G11B5/58
摘要： A integral magnetic head and suspension and method for making the same. The integral head and suspension are fabricated completely on silicon (Si) wafers using semiconductor processes. A N+ silicon layer is disposed over a P- silicon wafer. The N+ silicon layer and the P-silicon wafer are thermally oxidized to generate a bottom silicon oxide layer opposite the N+ layer side of the wafer and a top silicon oxide layer on the N+ side of the wafer, and to drive the N+ silicon into the P- silicon wafer. A layer of polysilicon is disposed over the silicon oxide layer on top of the N+ silicon layer and is then patterned to define the head structure and suspension structure as one piece. Then, a magnetic head is disposed on the polysilicon. Finally, the magnetic head and suspension are separated from the wafer by removing the first silicon oxide layer by a chemical etchant and the P- silicon wafer by selective etching. The head and suspension are released from the silicon wafer as a single structure using the above-described semiconductor processes. Accordingly, no grinding or cutting is used to define the dimensions of the head. Further, no processes are required to attach the head to the suspension and the suspension can be made from low mass materials such as silicon (Si) or Al.sub.2 O.sub.3.
摘要翻译：一体化磁头和悬架及其制造方法。使用半导体工艺，在硅（Si）晶片上完全制造整体式头和悬架。 N +硅层设置在P-硅晶片上。 N +硅层和P-硅晶片被热氧化以产生与晶片的N +层侧相对的底部氧化硅层和在晶片的N +侧上的顶部氧化硅层，并将N +硅驱入 P-硅晶片。在N +硅层顶部的氧化硅层之上设置多晶硅层，然后将其图案化以将头部结构和悬挂结构定义为一体。然后，在多晶硅上设置磁头。最后，通过化学蚀刻剂和P-硅晶片通过选择性蚀刻去除第一氧化硅层，将磁头和悬浮液与晶片分离。使用上述半导体工艺，头和悬浮液作为单一结构从硅晶片释放。因此，不使用研磨或切割来限定头部的尺寸。此外，不需要将头部附接到悬架上，并且悬架可以由诸如硅（Si）或Al 2 O 3的低质量材料制成。

7. 发明授权

US5066552A Low noise thin film metal alloy magnetic recording disk 失效
标题翻译：低噪声薄膜金属合金磁记录盘
公开(公告)号：US5066552A
公开(公告)日：1991-11-19
申请号：US394784
申请日：1989-08-16
申请人： James K. Howard , Randall G. Simmons , Tadashi Yogi
发明人： James K. Howard , Randall G. Simmons , Tadashi Yogi
IPC分类号： C23C14/14 , G11B5/64 , G11B5/65 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/85 , G11B5/851 , H01F10/16 , H01F41/18
CPC分类号： G11B5/656 , Y10S428/90 , Y10S428/928 , Y10T428/12465 , Y10T428/1266 , Y10T428/12931
摘要： An improved CoPt alloy magnetic recording disk for horizontal recording has a magnetic recording layer which includes oxygen, the oxygen being present preferably in the range of approximately 5 to 30 atomic percent. The resulting disk structure has substantially decreased intrinsic media noise at high linear recording density.

8. 发明授权

US4980395A Process for the preparation of large surface area, finely divided precipitated calcium carbonate and filled polymeric compositions of matter containing said calcium carbonate 失效
标题翻译：用于制备大表面积的方法，细碎的沉淀碳酸钙和填充的含有所述碳酸钙的物质的聚合物组合物
公开(公告)号：US4980395A
公开(公告)日：1990-12-25
申请号：US490189
申请日：1990-03-08
申请人： Krishna K. Mathur , Robert K. Resnik , Randall G. Simmons
发明人： Krishna K. Mathur , Robert K. Resnik , Randall G. Simmons
IPC分类号： C01F11/18 , C08K3/26 , C08K9/04 , C09C1/02
CPC分类号： C01F11/183 , C08K3/26 , C08K9/04 , C09C1/021 , C09C1/022 , C01P2006/12
摘要： This invention concerns a process for the preparation of large surface area, finely divided precipitated calcium carbonate which comprises introducing carbon dioxide into an aqueous slurry of greater than about five weight percent calcium hydroxide containing an anionic organopolyphosphonate polyelectrolyte, starting the introduction at a temperature above about 7.degree. C. and below about 18.degree. C., continuing the introduction until calcite precipitation is substantially complete and adding a quantity of polybasic acid to the slurry in an amount greater than about 0.3% by weight of the precipitated calcium carbonate. This invention also concerns said large surface area, finely divided precipitated calcium carbonate which has been coated with a fatty acid derivative and polymeric compositions which contain such coated calcium carbonate.
摘要翻译：本发明涉及一种制备大表面积，细碎的沉淀碳酸钙的方法，其包括将二氧化碳引入含有大于约5重量％的含有阴离子有机多膦酸盐聚电解质的氢氧化钙的含水浆液中，在高于约 7℃和低于约18℃，继续引入直到方解石沉淀基本上完成，并且以大于沉淀碳酸钙的约0.3重量％的量向浆料中加入一定量的多元酸。本发明还涉及已经涂覆有脂肪酸衍生物的所述大表面积，细碎的沉淀碳酸钙和含有这种包覆的碳酸钙的聚合物组合物。

9. 发明授权

US4927618A Process for the preparation of large surface area, finely divided precipitated calcium carbonate and filled polymeric compositions of matter containing said calcium carbonate 失效
标题翻译：用于制备大表面积的方法，细碎的沉淀碳酸钙和填充的含有所述碳酸钙的物质的聚合物组合物
公开(公告)号：US4927618A
公开(公告)日：1990-05-22
申请号：US204057
申请日：1988-06-07
申请人： Krishna K. Mathur , Robert K. Resnik , Randall G. Simmons
发明人： Krishna K. Mathur , Robert K. Resnik , Randall G. Simmons
IPC分类号： C01F11/18 , C08K3/26 , C08K9/00 , C08K9/04 , C08L27/06 , C09C1/02
CPC分类号： C09C1/021 , C01F11/183 , C08K3/26 , C08K9/04 , C09C1/022 , C01P2006/12
摘要： This invention concerns a process for the preparation of large surface area, finely divided precipitated calcium carbonate which comprises introducing carbon dioxide into an aqueous slurry of greater than about five weight percent calcium hydroxide containing an anionic organopolyphosphonate polyelectrolyte, starting the introduction at a temperature above about 7.degree. C. and below about 18.degree. C., continuing the introduction until calcite precipitation is substantially complete and adding a quantity of polybasic acid to the slurry in an amount greater than about 0.3% by weight of the precipitated calcium carbonate. This invention also concerns said large surface area, finely divided precipitated calcium carbonate which has been coated with a fatty acid derivative and polymeric compositions which contain such coated calcium carbonate.

10. 发明授权

US06318624B1 Solder balltape and method for making electrical connection between a head transducer and an electrical lead 失效
标题翻译：焊接球形体和用于在头部换能器和电气引线之间进行电气连接的方法
公开(公告)号：US06318624B1
公开(公告)日：2001-11-20
申请号：US09467731
申请日：1999-12-20
申请人： Surya Pattanaik , Timothy C. Reiley , Randall G. Simmons
发明人： Surya Pattanaik , Timothy C. Reiley , Randall G. Simmons
IPC分类号： B23K3514
CPC分类号： H05K3/3442 , H01L2224/1134 , H01L2224/16104 , H05K3/3494 , H05K2203/041 , H05K2203/107 , Y02P70/613 , Y10T29/49211
摘要： A solder balltape comprised of an elongated tail with a ball of solder formed at one end. A plurality of the balltape structures are positioned on a carrier strip of solder. The balltape is positioned in contact with a transducer pad on a magnetic read/write slider and an electrical lead pad. A pulse of focused laser radiation is directed at the ball part of the balltape and a right angle fillet joint is formed. A subsequent laser pulse or a sharpened blade is used to remove the tail from the newly formed fillet joint.
摘要翻译：焊料球形体由细长的尾部组成，其一端形成有焊料球。多个球形结构位于焊料载体条上。球形电极定位成与磁读/写滑块和电引线板上的换能器垫接触。聚焦激光辐射的脉冲指向球形球的球部，形成直角圆角接头。随后的激光脉冲或锋利的刀片用于从新形成的圆角接头去除尾部。

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