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1. 发明授权

US08089829B2 Thermally assisted recording media and system 失效
标题翻译：热辅助记录媒体和系统
公开(公告)号：US08089829B2
公开(公告)日：2012-01-03
申请号：US12608232
申请日：2009-10-29
申请人： Fumiko Akagi , Masukazu Igarashi , Hiroaki Nemoto , Takayuki Ichihara
发明人： Fumiko Akagi , Masukazu Igarashi , Hiroaki Nemoto , Takayuki Ichihara
IPC分类号： G11B11/00
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/314 , G11B5/65 , G11B5/66 , G11B5/743 , G11B2005/0021
摘要： A thermally assisted magnetic recording medium includes a substrate and at least two, i.e., first and second magnetic recording layers. These layers are hard magnetic layers and contain magnetic grains and a non-magnetic substance magnetically segregating the magnetic grains at grain boundaries. The first magnetic recording layer has a magnetic anisotropy energy Ku1, a grain volume v1, and energy for maintaining its recording magnetization Ku1v1; the second magnetic recording layer has a magnetic anisotropy energy Ku2, a grain volume v2, and energy for maintaining its recording magnetization Ku2v2; and the ratio Ku1v1/kBT of Ku1v1 to a thermal fluctuation energy kBT, where kB represents a Boltzmann constant and T represents an absolute temperature, and the ratio Ku2v2/kBT of Ku2v2 to kBT satisfy the following conditions: Ku1v1/kBT is larger than Ku2v2/kBT at room temperature, but is smaller than Ku2v2/kBT at temperatures around the Curie temperature of the first magnetic recording layer.
摘要翻译：热辅助磁记录介质包括基底和至少两个，即第一和第二磁记录层。这些层是硬磁性层，并且含有磁性颗粒，并且非磁性物质在晶界处磁性地分离磁性颗粒。第一磁记录层具有磁各向异性能Ku1，晶粒体积v1和用于保持其记录磁化强度Ku1v1的能量; 第二磁记录层具有磁各向异性能Ku2，晶粒体积v2和用于保持其记录磁化Ku2v2的能量; Ku1v1 / kBT的Ku1v1 / kBT与热波动能kBT的比值，其中kB表示玻耳兹曼常数，T表示绝对温度，Ku2v2与kBT的Ku2v2 / kBT的比值满足以下条件：Ku1v1 / kBT大于Ku2v2 / kBT，但在第一磁记录层的居里温度附近的温度下小于Ku2v2 / kBT。

2. 发明授权

US07625646B2 Perpendicular magnetic recording medium and method of manufacturing it 失效
标题翻译：垂直磁记录介质及其制造方法
公开(公告)号：US07625646B2
公开(公告)日：2009-12-01
申请号：US11354085
申请日：2006-02-15
申请人： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
发明人： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
IPC分类号： G11B5/66
CPC分类号： G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/84
摘要： Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.
摘要翻译：公开了一种具有较低介质噪声，不易受热波动和高记录分辨率的垂直磁记录介质及其制造方法。作为通过多个底层在非磁性基板上形成记录层时形成金属层的步骤，重复平均厚度为0.2nm以下的氧化物层的工序，晶粒磁性隔离，而不会干扰垂直磁记录介质的记录层的晶粒的取向，或不降低记录层的晶粒的磁特性。

3. 发明授权

US07033686B2 Perpendicular magnetic recording medium and method of manufacturing it 失效
公开(公告)号：US07033686B2
公开(公告)日：2006-04-25
申请号：US10701603
申请日：2003-11-06
申请人： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
发明人： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/84
摘要： Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.

4. 发明申请

US20060134467A1 Perpendicular magnetic recording medium and method of manufacturing it 失效
公开(公告)号：US20060134467A1
公开(公告)日：2006-06-22
申请号：US11354085
申请日：2006-02-15
申请人： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
发明人： Yoshiyuki Hirayama , Ichiro Tamai , Takayuki Ichihara , Hiroyuki Nakagawa , Hiroaki Nemoto , Mineaki Kodama , Ikuko Takekuma
IPC分类号： G11B5/66 , C23C14/00
CPC分类号： G11B5/65 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/84
摘要： Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.

5. 发明申请

US20100165500A1 Thermal Energy Assisted Medium 有权
标题翻译：热能辅助介质
公开(公告)号：US20100165500A1
公开(公告)日：2010-07-01
申请号：US12630707
申请日：2009-12-03
申请人： Hiroyuki Suzuki , Masae Suzuki , Hiroaki Nemoto , Hiroyuki Nakagawa , Takayuki Ichihara
发明人： Hiroyuki Suzuki , Masae Suzuki , Hiroaki Nemoto , Hiroyuki Nakagawa , Takayuki Ichihara
IPC分类号： G11B5/02 , G11B5/667
CPC分类号： G11B5/667 , G11B5/66 , G11B5/7325
摘要： In order to provide a thermal energy assisted medium capable of improving anti-sliding reliability over long periods of time in low flying head conditions, while also maintaining a high SNR, a unique medium is proposed. A soft magnetic layer is formed on a substrate, a soft magnetic layer is formed thereon via a non-magnetic intermediate layer, and an intermediate layer, a crystal oriented control intermediate layer, an artificial lattice intermediate layer having an artificial lattice film in which a first layer comprising Co and a second layer comprising Pt and Pd are laminated repeatedly to form a recording layer, and a cap layer and an lubricating layer are formed. The concentration of Pd comprising the second layer is from about 20 atomic % to about 40 atomic %. Other mediums and systems are also described.
摘要翻译：为了提供能够在低飞行头条件下长时间提高抗滑动可靠性的热能辅助介质，同时还保持高SNR，提出了独特的介质。在基板上形成软磁性层，经由非磁性中间层形成软磁性层，中间层，取向晶体管的中间层，具有人造晶格膜的人造晶格中间层，其中，重复层叠包括Co和包含Pt和Pd的第二层的第一层以形成记录层，并且形成覆盖层和润滑层。包含第二层的Pd的浓度为约20原子％至约40原子％。还描述了其它介质和系统。

6. 发明授权

US09099140B2 Thermal energy assisted medium 有权
标题翻译：热能辅助介质
公开(公告)号：US09099140B2
公开(公告)日：2015-08-04
申请号：US12630707
申请日：2009-12-03
申请人： Hiroaki Nemoto , Hiroyuki Nakagawa , Takayuki Ichihara , Masae Suzuki
发明人： Hiroyuki Suzuki , Hiroaki Nemoto , Hiroyuki Nakagawa , Takayuki Ichihara
IPC分类号： G11B11/00 , G11B5/667 , G11B5/66 , G11B5/73
CPC分类号： G11B5/667 , G11B5/66 , G11B5/7325
摘要： In order to provide a thermal energy assisted medium capable of improving anti-sliding reliability over long periods of time in low flying head conditions, while also maintaining a high SNR, a unique medium is proposed. A soft magnetic layer is formed on a substrate, a soft magnetic layer is formed thereon via a non-magnetic intermediate layer, and an intermediate layer, a crystal oriented control intermediate layer, an artificial lattice intermediate layer having an artificial lattice film in which a first layer comprising Co and a second layer comprising Pt and Pd are laminated repeatedly to form a recording layer, and a cap layer and an lubricating layer are formed. The concentration of Pd comprising the second layer is from about 20 atomic % to about 40 atomic %. Other mediums and systems are also described.
摘要翻译：为了提供能够在低飞行头条件下长时间提高抗滑动可靠性的热能辅助介质，同时还保持高SNR，提出了独特的介质。在基板上形成软磁性层，通过非磁性中间层，中间层，取向晶体管的中间层，具有人造晶格膜的人造晶格中间层，在其上形成软磁性层，其中，重复层叠包括Co和包含Pt和Pd的第二层的第一层以形成记录层，并且形成覆盖层和润滑层。包含第二层的Pd的浓度为约20原子％至约40原子％。还描述了其它介质和系统。

7. 发明授权

US06952380B2 Apparatus and method for recording information 有权
标题翻译：用于记录信息的装置和方法
公开(公告)号：US06952380B2
公开(公告)日：2005-10-04
申请号：US10138568
申请日：2002-05-06
申请人： Fumio Isshiki , Atsuko Kuroda , Takayuki Ichihara , Masafumi Mochizuki , Takuya Matsumoto
发明人： Fumio Isshiki , Atsuko Kuroda , Takayuki Ichihara , Masafumi Mochizuki , Takuya Matsumoto
IPC分类号： G11B5/64 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/127 , G11B5/66 , G11B5/673 , G11B11/10 , G11B13/04 , G11B7/00
CPC分类号： G11B5/66 , G11B5/00 , G11B5/012 , G11B5/127 , G11B5/1278 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/001 , G11B2005/0013 , G11B2005/0021 , G11B2005/0029
摘要： A vertical magnetic recording apparatus is provided which can diminish thermal decay of magnetization to ensure a high reliability of the life of recorded information and which can stably effect the write of magnetic information. Light assist is performed by obliquely applying light to a gap between a main pole of a vertical recording head and a medium. The light is radiated from the head side of the apparatus with respect to the medium. Utilizing the present invention, the thermal decay of magnetization at room temperature is diminished, the life of the recorded information is increased, and the storage reliability of the disk is increased.
摘要翻译：提供了一种垂直磁记录装置，其可以减少磁化的热衰减，以确保记录信息的寿命的高可靠性，并且可以稳定地影响磁信息的写入。通过向垂直记录头的主极和介质之间的间隙倾斜地施加光来执行光辅助。光从设备的头侧相对于介质辐射。利用本发明，室温下磁化的热衰减减小，记录信息的寿命增加，并且磁盘的存储可靠性增加。

8. 发明授权

US07556871B2 Magnetic recording medium containing first and second recording layers, each layer containing a columnar structure 有权
标题翻译：含有第一和第二记录层的磁记录介质，每层包含柱状结构
公开(公告)号：US07556871B2
公开(公告)日：2009-07-07
申请号：US11105045
申请日：2005-04-12
申请人： Takayuki Ichihara , Atsushi Nakamura , Ichiro Tamai , Yuzuru Hosoe
发明人： Takayuki Ichihara , Atsushi Nakamura , Ichiro Tamai , Yuzuru Hosoe
IPC分类号： G11B5/66
CPC分类号： G11B5/667 , G11B5/66 , G11B5/7325
摘要： Embodiments of the invention provide a perpendicular magnetic recording medium capable of reconciling a high recording density with high thermal stability, and having a high write-ability while maintaining high magnetic anisotropy energy. In one embodiment, a perpendicular magnetic recording medium has a soft-magnetic underlayer, and magnetic recording layers, and the magnetic recording layers comprises a first recording layer containing magnetic grains oriented in a direction normal to a medium plane, and a second recording layer containing magnetic grains tilted in a cross-track direction. There can be provided a perpendicular magnetic recording medium resistant to thermal fluctuation, small in medium noise, and excellent in write-ability.
摘要翻译：本发明的实施方案提供了一种垂直磁记录介质，其能够调和高记录密度和高热稳定性，并且具有高的写入能力，同时保持高的磁各向异性能量。在一个实施例中，垂直磁记录介质具有软磁性底层和磁记录层，并且磁记录层包括含有沿垂直于介质平面的方向取向的磁性颗粒的第一记录层和含有磁性晶粒沿横向方向倾斜。可以提供耐热波动，中等噪声小，写入性优异的垂直磁记录介质。

9. 发明授权

US4708199A Heat exchanger 失效
标题翻译：热交换器
公开(公告)号：US4708199A
公开(公告)日：1987-11-24
申请号：US834816
申请日：1986-02-28
申请人： Takeji Yogo , Akitsuna Nakagaki , Akio Miyazawa , Takeshi Mitomo , Takayuki Ichihara
发明人： Takeji Yogo , Akitsuna Nakagaki , Akio Miyazawa , Takeshi Mitomo , Takayuki Ichihara
IPC分类号： F28D9/00 , F28F3/00
CPC分类号： F28D9/0012 , F28D2021/0089 , Y10S165/361
摘要： A heat exchange element of a plate type heat exchanger consists of a plurality of heat transmission plates having an equivalent shape. Each heat transmission plate is formed with flanged through-holes and openings so that each flanged through-hole and each opening are alternately located and separate from each other by a predetermined peripheral distance along a circle of the heat transmission plate. The heat transmission plates are disposed one upon another and sealingly secured to each other in such a manner that one of adjacent heat transmission plates is shifted the predetermined peripheral distance along the circle relative to the other heat transmission plate, thereby enabling to produce the heat exchanger heat exchange element by using only the heat transmission plates of the equivalent shape.
摘要翻译：板式热交换器的热交换元件由具有等效形状的多个传热板组成。每个传热板形成有法兰通孔和开口，使得每个凸缘通孔和每个开口沿着传热板的圆周彼此交替地定位和分开预定的周边距离。传热板一个接一个地彼此密封地彼此密封，使得相邻的传热板之一相对于另一个传热板沿着圆周移动预定的周边距离，从而能够产生热交换器热交换元件仅使用等效形状的传热板。

10. 发明申请

US20090052074A1 Perpendicular magnetic recording media and magnetic storage apparatus using the same 有权
标题翻译：垂直磁记录介质及使用其的磁存储装置
公开(公告)号：US20090052074A1
公开(公告)日：2009-02-26
申请号：US12156317
申请日：2008-05-30
申请人： Hiroyuki Nakagawa , Ryoko Araki , Naoto Ito , Takayuki Ichihara
发明人： Hiroyuki Nakagawa , Ryoko Araki , Naoto Ito , Takayuki Ichihara
IPC分类号： G11B5/09 , G11B5/82
CPC分类号： G11B5/82 , G11B5/65 , G11B5/66
摘要： Embodiments of the present invention provide a perpendicular magnetic recording media having excellent resolution, signal to noise ratio (S/N), and a small adjacent track erasure. According to one embodiment, underlayers for controlling the orientation and segregation of a magnetic layer, a magnetic layer including an oxide and an alloy of magnetic materials mainly composed of Co, Cr, and Pt, and a ferromagnetic-metal layer which does not contain oxygen, are formed over a substrate. The magnetic layer has at least two layers including ferromagnetic grains and oxides, a first magnetic layer, which is the part of the magnetic layer closer to the substrate, has grain boundaries mainly composed of Cr oxide and at least one oxide selected from Si, Ti, Nb, and Ta, and grain boundaries of a second magnetic layer at the ferromagnetic-metal layer side includes at least one oxide selected from Si, Ti, Nb, and Ta in which Cr oxide is less than the first magnetic layer.
摘要翻译：本发明的实施例提供了具有优异的分辨率，信噪比（S / N）和小的相邻轨道擦除的垂直磁记录介质。根据一个实施例，用于控制磁性层的取向和偏析的底层，包括氧化物的磁性层和主要由Co，Cr和Pt组成的磁性材料的合金以及不含氧的铁磁性金属层，形成在衬底上。磁性层具有至少两层包括铁磁性粒子和氧化物的层，作为靠近衬底的磁性层的一部分的第一磁性层具有主要由Cr氧化物和至少一种选自Si，Ti Nb和Ta中的至少一种，并且在铁磁金属层侧的第二磁性层的晶界包含选自Si，Ti，Nb和Ta中的至少一种氧化物小于第一磁性层的氧化物。

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