| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 软磁薄膜和设有该软磁薄膜的磁头 | CN00119337.6 | 2000-06-28 | CN1145145C | 2004-04-07 | 井上喜彦; 本多顺一; 德竹房重; 铃木笃 |
| 一种在高饱和磁通密度、软磁特性和耐蚀性方面优良的软磁薄膜。该软磁薄膜用一种由组分分子式FeaSibTacRudGaeNf(其中a、b、c、d、e及f的每一个是一个指示相应元素的at%的值)表示的材料制成，其中组分范围如下：62 at%＜a＜75 at%，7 at%＜b＜18 at%，3at%＜c＜10 at%，0 at%≤d＜10 at%，0 at%≤e＜6 at%，5 at%＜f＜12at%，及b+c＞13 at%，其中at%表示原子百分数。 | ||||||
| 2 | 线圈零件的制造方法 | CN200410068647.4 | 2004-09-03 | CN100375207C | 2008-03-12 | 吉田诚; 奥泽信之 |
| 本发明涉及用作共态扼流线圈或变压器等的主要零件的线圈零件的制造方法，提供一种阻抗特性不会变差且可靠性高的小型·较薄的线圈零件的制造方法。在磁性基板(3)上形成绝缘膜(9a)，在绝缘膜(9a)上形成开口部(15、17)。在绝缘膜(9a)上形成引线端子部(21)，并且在开口部(15、17)形成平坦化膜(29)。形成绝缘膜(9b)，开口出绝缘膜(9b)的开口部(15、17)。在绝缘膜(9b)上形成线圈导体(11)，并且在平坦化膜(29)上形成平坦化膜(31)。经由绝缘膜而在线圈导体(11)上进一步形成线圈导体之后除去平坦化膜(29、31)。 | ||||||
| 3 | 线圈零件的制造方法 | CN200410068647.4 | 2004-09-03 | CN1591713A | 2005-03-09 | 吉田诚; 奥泽信之 |
| 本发明涉及用作共态扼流线圈或变压器等的主要零件的线圈零件的制造方法，提供一种阻抗特性不会变差且可靠性高的小型·较薄的线圈零件的制造方法。在磁性基板(3)上形成绝缘膜(9a)，在绝缘膜(9a)上形成开口部(15、17)。在绝缘膜(9a)上形成引线端子部(21)，并且在开口部(15、17)形成平坦化膜(29)。形成绝缘膜(9b)，开口出绝缘膜(9b)的开口部(15、17)。在绝缘膜(9b)上形成线圈导体(11)，并且在平坦化膜(29)上形成平坦化膜(31)。经由绝缘膜而在线圈导体(11)上进一步形成线圈导体之后除去平坦化膜(29、31)。 | ||||||
| 4 | 软磁薄膜和设有该软磁薄膜的磁头 | CN00119337.6 | 2000-06-28 | CN1279463A | 2001-01-10 | 井上喜彦; 本多顺一; 德竹房重; 铃木笃 |
| 一种在高饱和磁通密度、软磁特性和耐蚀性方面优良的软磁薄膜。该软磁薄膜用一种由组分分子式FeaSibTacRudGaeNf(其中a、b、c、d、e及f的每一个是一个指示相应元素的at%的值)表示的材料制成,其中组分范围如下:62at% |
||||||
| 5 | 间隙中金属和薄膜混合读写头 | CN94191479.8 | 1994-03-11 | CN1119475A | 1996-03-27 | 塞亚姆·C·达斯 |
| 一种MIG和薄膜混合读写头使用较少的磁性材料从而降低了磁感应。混合头对探头高度公差较不敏感并对间隙和磁道之类的几何参数更好控制。混合头由各个磁心(210)、软磁层(201)、非磁性层(202)以及C形切口(204)组成。混合头由经过简化的较高成品率的工艺批量地制造。 | ||||||
| 6 | MAGNETO-RESISTANCE EFFECT ELEMENT, MAGNETIC HEAD ASSEMBLY, MAGNETIC RECORDING AND REPRODUCING APPARATUS, AND MAGNETIC MEMORY | US13728281 | 2012-12-27 | US20130242435A1 | 2013-09-19 | Yoshihiko FUJI; Michiko Hara; Hideaki Fukuzawa; Hiromi Yuasa |
| According to one embodiment, a magneto-resistance effect element includes: a first electrode; a second electrode; a first magnetic layer provided between the first and the second electrodes; a second magnetic layer provided between the first magnetic layer and the second electrode; and an oxide layer of a metal oxide provided between the first magnetic layer and the second magnetic layer. The oxide layer includes wustite crystal grains of a wustite structure with a (1 1 1) plane orientation containing iron. A lattice spacing of a (1 1 1) plane of the wustite crystal grains is not less than 0.253 nanometers and not more than 0.275 nanometers. | ||||||
| 7 | Transducing head including a magnetic element exhibiting varying permeability | US12100761 | 2008-04-10 | US07561380B2 | 2009-07-14 | Nurul Amin; Yuming Zhou; Kaizhong Gao; Patrick J. Ryan; Steven Kalderon; Song S. Xue; Shaoping Li; Mark T. Kief |
| A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The magnetic element is spaced from the main pole. The magnetic element has a first edge closest to the main pole and a second edge furthest from the main pole. Permeability of the magnetic element increases from the first edge to the second edge. | ||||||
| 8 | TRANSDUCING HEAD INCLUDING A MAGNETIC ELEMENT EXHIBITING VARYING PERMEABILITY | US12100761 | 2008-04-10 | US20080186636A1 | 2008-08-07 | Nurul Amin; Yuming Zhou; Kaizhong Gao; Patrick J. Ryan; Steven Kalderon; Song S. Xue; Shaoping Li; Mark T. Kief |
| A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The magnetic element is spaced from the main pole. The magnetic element has a first edge closest to the main pole and a second edge furthest from the main pole. Permeability of the magnetic element increases from the first edge to the second edge. | ||||||
| 9 | Transducing head including a magnetic element exhibiting varying permeability | US10671809 | 2003-09-26 | US07382575B2 | 2008-06-03 | Nurul Amin; Yuming Zhou; Kaizhong Gao; Patrick J. Ryan; Steven Kalderon; Song S. Xue; Shaoping Li; Mark T. Kief |
| A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The magnetic element is spaced from the main pole. The magnetic element has a first edge closest to the main pole and a second edge furthest from the main pole. Permeability of the magnetic element increases from the first edge to the second edge. | ||||||
| 10 | Magnetic head with optimum aspect ratio of upper shield layer | US11203687 | 2005-08-15 | US07336450B2 | 2008-02-26 | Tomohiro Yamashita; Akira Takahashi; Shuji Yanagi |
| A magnetic head contains a write magnetic head and a read magnetic head. The write magnetic head includes a lower core layer, an upper core layer arranged over the lower core layer, and a coil layer for applying a magnetic field to the lower and upper core layers. The read magnetic head includes an upper shield layer, a lower shield layer, and a reproducing device arranged between the upper shield layer and the lower shield layer. The upper shield layer has a dimension A in a direction of track width and a dimension B in a direction of height and has an aspect ratio B/A ranging from 0.6 to 1.2. The dimension A ranges from 75 μm to 150 μm. | ||||||
| 11 | Nanoclustered magnetic materials for high moment write pole applications | US10686841 | 2003-10-16 | US20050084668A1 | 2005-04-21 | Robert Lamberton; Declan Macken; Paul Dodd; William O'Kane |
| The present invention includes magnetic write elements with portions formed a nanophase high magnetic moment material to enable further increases in areal density in magnetic recording. The nanophase deposited high magnetic moment material comprises coated nanoclusters and nanolaminated cluster films that are deposited to form nanophase high magnetic moment material portions of a write pole and SUL layer in perpendicular recording media. The nanophase write poles exhibit high magnetic moments and are generally compatible with conventional writer head fabrication techniques. | ||||||
| 12 | Method for forming a transducing head | US384247 | 1995-02-06 | US5778514A | 1998-07-14 | Shyam Chandra Das |
| Metal-in-the-gap (MIG) transducing head formed on a substrate for use in a magnetic storage device for writing and/or reading data in the form of magnetic flux onto and/or from tracks on magnetic media which moves relative to the head, formed by batch processing techniques. In preferred embodiment, MIG head is write head and further includes magnetoresistive read head, all on a common substrate. | ||||||
| 13 | Magnetic core and magnetic head using the same | US35411 | 1993-03-23 | US5736264A | 1998-04-07 | Nobuyuki Ishiwata; Yoshio Takeshima; Takahiro Korenari; Haruo Urai |
| A magnetic head of the present invention has a magnetic core and a substrate for supporting the magnetic core. The magnetic core has a magnetic layer which is of a soft magnetic alloy mainly composed of FeTaN. The composition of the alloy meets 72.ltoreq.x.ltoreq.82, 5.ltoreq.y.ltoreq.15, 10.ltoreq.z.ltoreq.15 by atomic percent, where the alloy is indicated to be Fe.sub.x M.sub.y N.sub.z. The magnetic layer contains crystal grains of body-centered cubic structure, and each diameter of said crystal grains is less than 10 nm. The crystal grains have lattice planes which are orientated at random. | ||||||
| 14 | Magnetic disc apparatus | US351562 | 1994-12-07 | US5668685A | 1997-09-16 | Susumu Soeya; Shigeru Tadokoro; Takao Imagawa; Eiji Ashida; Moriaki Fuyama; Hiroshi Fukui; Saburo Suzuki; Masayuki Takagi; Shinji Narishige |
| A magnetic disc apparatus is disclosed, in which a magneto-resistance effect film converts a magnetic signal into an electrical signal by use of the magneto-resistance effect, a pair of electrodes supplies a signal detection current to the magneto-resistance effect film, and a magnetic domain control layer controls the magnetic domain of the magneto-resistance effect film. The magneto-resistance effect film, the electrodes and the magnetic domain control layer constitute a magnetic head of magneto-resistance effect type. An isolation film is formed in a magneto-sensitive portion of the magneto-resistance effect film between the magneto-resistance effect film and the magnetic domain control layer to break the magnetic coupling between the magneto-resistance effect film and the magnetic domain control layer. | ||||||
| 15 | Magnetic tape head with a high saturation flux density magnetic pole interposed between a nonmagnetic closure section and a magnetic ferrite substrate | US263884 | 1994-06-22 | US5594608A | 1997-01-14 | Richard H. Dee |
| A high efficiency write element for use with a multiple element, multiple track longitudinal magnetic tape head. The write element includes a recess formed in the surface of the substrate in which a conductive thin film coil is disposed. This places the coil windings below the surface of the substrate resulting in a planar substrate surface. The ferrite substrate also includes a trench formed in the recess which is parallel to the front gap region and filled with a nonmagnetic composition. An insulator is interposed between the conductive thin film coil and the ferrite substrate to produce a gap spacer when the ferrite substrate is mated with a closure section. The closure section is a planar nonmagnetic material having a magnetic pole piece of a high saturation magnetic flux density material deposited on its surface. The ferrite substrate and closure section are mated such that the magnetic pole piece is positioned in the front gap and the back gap of the resulting magnetic tape head module. | ||||||
| 16 | Magneto-resistance effect element, magnetic head assembly, magnetic recording and reproducing apparatus, and magnetic memory | US13728281 | 2012-12-27 | US08824108B2 | 2014-09-02 | Yoshihiko Fuji; Michiko Hara; Hideaki Fukuzawa; Hiromi Yuasa |
| According to one embodiment, a magneto-resistance effect element includes: a first electrode; a second electrode; a first magnetic layer provided between the first and the second electrodes; a second magnetic layer provided between the first magnetic layer and the second electrode; and an oxide layer of a metal oxide provided between the first magnetic layer and the second magnetic layer. The oxide layer includes wustite crystal grains of a wustite structure with a (1 1 1) plane orientation containing iron. A lattice spacing of a (1 1 1) plane of the wustite crystal grains is not less than 0.253 nanometers and not more than 0.275 nanometers. | ||||||
| 17 | Nanoclustered magnetic materials for high moment write pole applications | US10686841 | 2003-10-16 | US07128986B2 | 2006-10-31 | Robert W. Lamberton; Declan Macken; Paul M. Dodd; William J. O'Kane |
| The present invention includes magnetic write elements with portions formed a nanophase high magnetic moment material to enable further increases in areal density in magnetic recording. The nanophase deposited high magnetic moment material comprises coated nanoclusters and nanolaminated cluster films that are deposited to form nanophase high magnetic moment material portions of a write pole and SUL layer in perpendicular recording media. The nanophase write poles exhibit high magnetic moments and are generally compatible with conventional writer head fabrication techniques. | ||||||
| 18 | Magnetic head with optimum aspect ratio of upper shield layer | US11203687 | 2005-08-15 | US20060039088A1 | 2006-02-23 | Tomohiro Yamashita; Akira Takahashi; Shuji Yanagi |
| A magnetic head contains a write magnetic head and a read magnetic head. The write magnetic head includes a lower core layer, an upper core layer arranged over the lower core layer, and a coil layer for applying a magnetic field to the lower and upper core layers. The read magnetic head includes an upper shield layer, a lower shield layer, and a reproducing device arranged between the upper shield layer and the lower shield layer. The upper shield layer has a dimension A in a direction of track width and a dimension B in a direction of height and has an aspect ratio B/A ranging from 0.6 to 1.2. The dimension A ranges from 75 μm to 150 μm. | ||||||
| 19 | Method of manufacturing coil component | US10917406 | 2004-08-13 | US20050050717A1 | 2005-03-10 | Makoto Yoshida; Nobuyuki Okuzawa |
| The invention relates to a method of manufacturing a coil component uses as a major part of a common mode choke coil or a transformer, and there is provided a method of manufacturing a compact and low height coil component in which deterioration of impedance characteristics is low and reliability is high. An insulating film is formed on a magnetic substrate, and open regions are formed in the insulating film. A lead terminal portion is formed on the insulating film, and a planarizing film is formed on the open regions. An insulating film is formed and openings are formed in the insulating film at the open regions. A coil conductor is formed on the insulating film, and a planarizing film is further formed on the planarizing film. After a coil conductor is further formed on the coil conductor through the insulating film, the planarizing films are removed. | ||||||
| 20 | Integrated bidirectional Recording head micropositioner for magnetic storage devices | US10342920 | 2003-01-13 | US06859346B1 | 2005-02-22 | Dallas W. Meyer |
| Transducer elements of recording heads for magnetic storage media are moved independently in either of two directions with respect to the slider of the recording head. The motion is controlled using a micropositioner having magnetic coils integrated into the recording head. The transducer moves in the x direction between data tracks and in the z direction perpendicular to the surface of the magnetic storage medium. The micropositioners are used for small-scale positioning of the transducers over data tracks and to adjust fly heights. Because of the high minimum resonant frequencies and the low mass of the transducers, the micropositioners also improve settling times associated with track following. The micropositioners can be used during fabrication for dimensional control of recording head components. The motion of the transducers in the z direction enables the recording heads to be used reliably in the presence of asperities and changing ambient pressures and temperatures. | ||||||
QQ群二维码
意见反馈
意见反馈