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. 发明专利

JP2005285186A Manufacturing method of magnetic recording medium, and magnetic recording medium manufactured by the same method 审中-公开
标题翻译：磁记录介质的制造方法和由该方法制造的磁记录介质
公开(公告)号：JP2005285186A
公开(公告)日：2005-10-13
申请号：JP2004094964
申请日：2004-03-29
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , YANO AKIRA , KANDA TETSUNORI , YAMANAKA HIDEAKI
IPC分类号： G11B5/65 , G11B5/673 , G11B5/84 , G11B5/851
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which has a high static magnetic property and an excellent recording property, and a magnetic recording apparatus provided with it. SOLUTION: A soft magnetic backing layer formed directly or indirectly by a soft magnetic material is formed on a non-magnetic substrate as a high density magnetic recording medium, two metals by which L1 0 type ordered alloy can be formed directly or indirectly on the soft magnetic backing layer are laminated alternately, after forming of the laminated film, the laminated film is separated in a island shape and physically by irradiating with a laser beam, further, it is made regular during the process. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有高静电磁性能和优良记录特性的磁记录介质，以及设置有磁记录装置的磁记录装置。解决方案：在作为高密度磁记录介质的非磁性基板上形成由软磁材料直接或间接形成的软磁背衬层，其中订购了L1 0 型的两种金属合金可以直接或间接地形成在软磁性背衬层上交替层叠，在形成层压膜之后，层叠膜通过用激光束照射而分离成岛状并物理地进一步在处理。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005158105A Magnetic recording medium and magnetic recorder using it 审中-公开
标题翻译：磁记录介质和磁记录仪使用它
公开(公告)号：JP2005158105A
公开(公告)日：2005-06-16
申请号：JP2003392129
申请日：2003-11-21
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： YAMANAKA HIDEAKI , MATSUNUMA SATORU , YANO AKIRA , KANDA TETSUNORI
IPC分类号： G11B5/667 , G11B5/65 , G11B5/673 , G11B5/738
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium and a magnetic recorder excellent in heat stability for high density recording with low medium noise. SOLUTION: The magnetic disk 100 has a lining of a soft magnetic layer 3 on the base plate 1, a B dispersion accelerator layer 5 containing B of a concentration higher than the lining soft magnetic layer, a seed layer 6, and a recording layer 7 with Co/Pd laminated. This configuration can reduce the magnetic exchange coupling force between the crystal particles of the recording layer 7. Accordingly, fine recording magnetic domains can be formed on the recording layer 7 and the magnetic transition regions also become clear resulting in the reduction of the medium noise. Namely, even if recording the information at a high density, it can be reproduced with less medium noise. The recording layer 5 of an artificial grid structure has high magnetic anisotropy and is excellent also in heat stability. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有低介质噪声的高密度记录的热稳定性优异的磁记录介质和磁记录器。解决方案：磁盘100具有底板1上的软磁性层3的内衬，含有比衬里软磁性层高的B的B分散促进剂层5，种子层6和记录层7与Co / Pd层压。这种结构可以减小记录层7的晶粒之间的磁交换耦合力。因此，可以在记录层7上形成精细的记录磁畴，并且磁转移区也变得清晰，导致介质噪声的降低。也就是说，即使以高密度记录信息，也可以以较少的中等噪声来再生。人造网格结构的记录层5具有高的磁各向异性，并且在热稳定性方面也是优异的。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004280955A Magnetic storage device 审中-公开
公开(公告)号：JP2004280955A
公开(公告)日：2004-10-07
申请号：JP2003071270
申请日：2003-03-17
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , KONUMA TAKESHI , YANO AKIRA , TAKAYAMA TAKANOBU
IPC分类号： G11B33/12 , G11B5/673 , G11B5/738 , G11B21/21
摘要： PROBLEM TO BE SOLVED: To provide a storage device which can keep a stable floating posture of a magnetic head at a high surface recording density of at least 600 giga bits/square inch and ensure long-term sliding-resistant characteristics.
SOLUTION: The magnetic storage device is provided with a disk-shaped magnetic recording medium of vertical magnetic recording type to which recording is made at the surface recording density of at least 600 giga bits/square inch; a magnetic head for recording and reproduction; a rotation means for moving the magnetic head and the magnetic recording medium relatively; a driving means for positioning the position of the magnetic head in a radius direction; and a housing which accommodates them. In addition, the housing is filled with a gas having an average molecular weight of 22 or below and then sealed. By this, the stable floating posture of the magnetic head is kept, and the long-term sliding-resistant characteristics are ensured.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004280946A Magnetic storage device 审中-公开
公开(公告)号：JP2004280946A
公开(公告)日：2004-10-07
申请号：JP2003070173
申请日：2003-03-14
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , KANDA TETSUNORI , YAMANAKA HIDEAKI , FUJITA SHIOJI
IPC分类号： G11B33/12 , G11B5/012 , G11B5/02 , G11B5/64 , G11B5/65 , G11B5/66 , G11B5/82
摘要： PROBLEM TO BE SOLVED: To provide a storage device which can keep a stable floating posture of a magnetic head at a high surface recording density of at least 600 giga bits/square inch and ensure long-term sliding-resistant characteristics.
SOLUTION: The magnetic storage device is provided with a disk-shaped magnetic recording medium of vertical magnetic recording type to which recording is made at the surface recording density of at least 600 giga bits/square inch; a magnetic head for recording and reproduction; a rotation means for moving the magnetic head and the magnetic recording medium relatively; a driving means for positioning the position of the magnetic head in a radius direction; and a housing which accommodates them. In addition, the housing is filled with a gas having an average molecular weight of 22 or below and then sealed. By this, the stable floating posture of the magnetic head is kept, and the long-term sliding-resistant characteristics are ensured.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004280942A Magnetic storage device 审中-公开
公开(公告)号：JP2004280942A
公开(公告)日：2004-10-07
申请号：JP2003070169
申请日：2003-03-14
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , KONUMA TAKESHI , YANO AKIRA , FUJITA SHIOJI
IPC分类号： G11B33/12 , G11B5/012 , G11B5/667 , G11B5/673 , G11B5/738
摘要： PROBLEM TO BE SOLVED: To provide a magnetic storage device in which a stable floating posture of a magnetic head is kept unchanged with a high surface recording density of ≥600 Gbits/square inch and a long term sliding resistance characteristic is ensured.
SOLUTION: The magnetic storage device comprises a disk-shaped magnetic recording medium of a vertical magnetic recording system recorded with the surface recording density of ≥600 Gbits/square inch, a magnetic head for performing recording and reproducing, a rotating means for relatively moving the magnetic head and the magnetic recording medium, a driving means for radially positioning the magnetic head, and a casing for accommodating them. In the magnetic storage device, the casing is filled with gas having average molecular weight of ≤22 and is sealed. Hereby, the stable floating posture of the magnetic head is kept unchanged to ensure the long term sliding resistance.
COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2004280904A Magnetic recording medium 审中-公开
标题翻译：磁记录介质
公开(公告)号：JP2004280904A
公开(公告)日：2004-10-07
申请号：JP2003068718
申请日：2003-03-13
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , YAMANAKA HIDEAKI
IPC分类号： G11B5/72 , G11B5/65 , G11B5/738
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which is excellent in sliding resistance and in corrosion resistance and which is capable of recording and reproducing with a high surface recording density of ≥ 600 Gbits/square inch.
SOLUTION: In a disk-shaped magnetic recording medium of a magnetic recording system recorded with the surface recording density of ≥600 Gbits/square inch is provided with a protective layer comprising tetrahedral-based amorphous carbon. The sliding resistance and the corrosion resistance are improved even under the condition of the high surface recording density of ≥ 600 Gbits/square inch.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的滑动阻力和耐腐蚀性的磁记录介质，能够以高达600G比特/平方英寸的高表面记录密度进行记录和再现。解决方案：在记录有≥600Gb/平方英寸的表面记录密度的磁记录系统的盘形磁记录介质中，设置有包含四面体型无定形碳的保护层。甚至在高达600Gbit /平方英寸的高表面记录密度的条件下，滑动阻力和耐腐蚀性得到改善。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004280903A Magnetic recording medium 审中-公开
公开(公告)号：JP2004280903A
公开(公告)日：2004-10-07
申请号：JP2003068717
申请日：2003-03-13
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , KANDA TETSUNORI , INABA NOBUYUKI , YAMANAKA HIDEAKI , FUJITA SHIOJI
IPC分类号： G11B5/72 , G11B5/65
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which is excellent in sliding resistance and in corrosion resistance and which is capable of recording and reproducing with a high surface recording density of ≥600 Gbits/square inch.
SOLUTION: In a disk-shaped magnetic recording medium of a magnetic recording system recorded with the surface recording density of ≥ 600 Gbits/square inch is provided with a protective layer comprising tetrahedral amorphous carbon. The sliding resistance and the corrosion resistance are improved even under the condition of the high surface recording density of ≥600 Gbits/square inch.
COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004280902A Magnetic recording medium 审中-公开
公开(公告)号：JP2004280902A
公开(公告)日：2004-10-07
申请号：JP2003068716
申请日：2003-03-13
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： MATSUNUMA SATORU , KANDA TETSUNORI , YANO AKIRA , FUJITA SHIOJI , KONUMA TAKESHI
IPC分类号： G11B5/72 , G11B5/65 , G11B5/667 , G11B5/738
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which has a proper sliding durability characteristic and corrosion resistance and which can be recorded/reproduced at a high surface recording density of equal to or more than 600 gigabits/square inch.
SOLUTION: The disk-like magnetic recording medium of a magnetic recording system recorded at the surface recording density of equal to or more than 600 gigabits/square inch is provided with a protective layer consisting of a tetrahedral type amorphous carbon. The sliding durability characteristic and the corrosion resistance are proper in the condition of the high surface recording density of equal to or more than 600 gigabits/square inch.
COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2004185726A Magnetic recording medium and magnetic storage device using it 有权
标题翻译：磁记录介质和使用它的磁存储设备
公开(公告)号：JP2004185726A
公开(公告)日：2004-07-02
申请号：JP2002351973
申请日：2002-12-04
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： KONUMA TAKESHI , YANO AKIRA , MATSUNUMA SATORU , FUJITA SHIOJI
IPC分类号： G11B5/738 , G11B5/64 , G11B5/65 , G11B5/667 , G11B5/673 , G11B5/73
CPC分类号： G11B5/732 , G11B5/667
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which has excellent thermal stability and is used for high density recording of low medium noise, and a magnetic storage device.
SOLUTION: A magnetic disk 100 is provided with a soft magnetic layer 3, a seed layer 4, and a recording layer 5 having artificial lattice structure. The soft magnetic layer 3 is formed for example of Co, B, and the seed layer 4 is formed for example of Pd, B. Magnetic exchange coupling force of the inplane direction acting among crystal particles of the recording layer 5 is reduced by this structure. Therefore, minute recording magnetic domains is formed in the recording layer 5, a magnetic transition region is made clear, and medium noise is reduced. That is, reproduction is performed with low medium noise even if information is recorded in high density. Since the recording layer 5 having the artificial lattice structure has high magnetic anisotropy, it is also excellent in thermal stability.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的热稳定性并用于低介质噪声的高密度记录的磁记录介质和磁存储装置。解决方案：磁盘100设置有软磁层3，种子层4和具有人造晶格结构的记录层5。软磁性层3例如由Co，B形成，种子层4例如由Pd，B形成。作为记录层5的结晶粒子的面内方向的磁交换耦合力由于该结构而降低。因此，在记录层5中形成微小的记录磁畴，使磁性过渡区清晰，并且中等噪声降低。也就是说，即使以高密度记录信息，也以低的中等噪声进行再现。由于具有人造晶格结构的记录层5具有高的磁各向异性，所以其热稳定性也优异。版权所有（C）2004，JPO＆NCIPI

10. 发明专利

JP2004079148A Magnetic recording medium, method for producing the same, and magnetic recording apparatus 有权
公开(公告)号：JP2004079148A
公开(公告)日：2004-03-11
申请号：JP2002375960
申请日：2002-12-26
申请人： Hitachi Maxell Ltd , 日立マクセル株式会社
发明人： KANDA TETSUNORI , YANO AKIRA , FUJITA SHIOJI , KONUMA TAKESHI , MATSUNUMA SATORU
IPC分类号： G11B5/65 , G11B5/64 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/84 , G11B5/851
CPC分类号： G11B5/732 , G11B5/64 , G11B5/66 , G11B5/667 , G11B5/851
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium in which the medium noise is reduced and information can be reproduced at a high S/N level, a method for producing the magnetic recording medium, and a magnetic recording medium which has excellent thermal stability and which makes it possible to perform the high density recording.
SOLUTION: When films are deposited for the magnetic recording medium on the basis of the perpendicular magnetic recording method, the content of B in a seed layer is made sufficiently larger than the content of B in a recording layer. Accordingly, B is diffused from the seed layer to the recording layer to facilitate the segregation of B at the crystal grain boundary in the recording layer. Thereby, the magnetic interaction between the crystal grains in the recording layer is further reduced. Thus, it is possible to greatly reduce the transition noise.
COPYRIGHT: (C)2004,JPO

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