公开(公告)号：US4241240A

公开(公告)日：1980-12-23

申请号：US954869

申请日：1978-10-26

申请人： Kazuo Shigematsu ,  Keizo Kato ,  Toshimitsu Miyauchi ,  Seiji Yonezawa ,  Fumiyuki Inose ,  Kimio Tatsuno ,  Takeshi Maeda

发明人： Kazuo Shigematsu ,  Keizo Kato ,  Toshimitsu Miyauchi ,  Seiji Yonezawa ,  Fumiyuki Inose ,  Kimio Tatsuno ,  Takeshi Maeda

IPC分类号： H04N5/85 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/095 ,  G11B17/00 ,  G11B27/02 ,  H04N5/76 ,  G11B7/12

CPC分类号： G11B17/005 ,  G11B27/02 ,  G11B7/0953

摘要： An optical information recording and reproducing apparatus is disclosed in which a predetermined signal is recorded on a track of a rotating recording medium by a recording light beam and the recorded information is reproduced by a reproducing light beam. The information recorded on the last record track is reproduced by the recording beam and the reproducing beam and radiating position of the recording beam on the recording medium is displaced by a predetermined distance from the last record track.

摘要翻译： 公开了一种光信息记录和再现装置，其中通过记录光束将预定信号记录在旋转记录介质的轨道上，并且通过再现光束再现记录信息。 记录在最后记录轨道上的信息由记录光束再现，并且记录光束的再现光束和记录光束的照射位置离开最后的记录轨道一预定的距离。

公开(公告)号：US4348461A

公开(公告)日：1982-09-07

申请号：US160661

申请日：1980-06-18

申请人： Motoyasu Terao ,  Yoshio Taniguchi ,  Shinkichi Horigome ,  Masahiro Ojima ,  Kazuo Shigematsu ,  Keizo Kato ,  Yoshinori Miyamura ,  Seiji Yonezawa

发明人： Motoyasu Terao ,  Yoshio Taniguchi ,  Shinkichi Horigome ,  Masahiro Ojima ,  Kazuo Shigematsu ,  Keizo Kato ,  Yoshinori Miyamura ,  Seiji Yonezawa

IPC分类号： B41M5/26 ,  G03C1/705 ,  G11B7/24 ,  G11B7/243 ,  B32B5/14

CPC分类号： G11B7/243 ,  G03C1/705 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S428/913 ,  Y10S430/146 ,  Y10S430/165 ,  Y10T428/31

摘要： A recording member having a predetermined substrate, and a thin film which is formed on the substrate and which is formed with recesses or pits for recording information when irradiated with a working beam, characterized in that said thin film is formed of an inorganic material which contains at least arsenic, selenium and tellurium, and that a distribution of either of said Se and said Te decreases from a part near the surface of said thin film towards a central part thereof, while a distribution of said As increases from a part near the surface towards said central part, is disclosed. This recording member can afford a high signal-to-noise ratio and a long lifetime. It is preferable that the distribution of said Se decreases so as to be at least 50 atomic-% in terms of the content of said Se in a part being the closest to the surface of said thin film and to be at most 40 atomic-% in terms of the average content of said Se over the whole thin film, and that the distribution of said As increases so as to be at most 15 atomic-% in terms of the content of said As in the closest part and to be 5 to 35 atomic-% in terms of the average content of said As in said whole thin film. The Se-Te-As-based material may well be doped with at least one element selected from the group consisting of Ge, S, Tl, Sn, Pb, In and Ta, within a range of 2 to 15 atomic-%.

摘要翻译： 具有预定基板的记录部件和形成在基板上并且在用工作光束照射时用于记录信息的凹坑或凹坑形成的薄膜，其特征在于，所述薄膜由无机材料形成，所述无机材料包含 至少砷，硒和碲，并且所述Se和所述Te中的任一个的分布从所述薄膜的表面附近的部分向其中心部分减少，而所述As的分布从表面附近的部分增加 朝向所述中心部分。 该记录部件可以提供高的信噪比和长的使用寿命。 优选所述Se的分布以与所述薄膜表面最接近的部分中的所述Se的含量为至少50原子％，并且为至多40原子％ 就所述Se在整个薄膜上的平均含量而言，所述As的分布以所述As在最接近的部分的含量为最多为15原子％，并且为5〜 在所述整个薄膜中，所述As的平均含量为35原子％。 可以在2至15原子％的范围内掺杂选自由Ge，S，Tl，Sn，Pb，In和Ta组成的组中的至少一种元素的Se-Te-As基材料。

公开(公告)号：US5296995A

公开(公告)日：1994-03-22

申请号：US549

申请日：1993-01-04

申请人： Seiji Yonezawa ,  Keiji Kataoka ,  Hajime Fukke ,  Tsuneo Terasawa ,  Keizo Kato ,  Harukazu Miyamoto ,  Klaus Kinstatter ,  Masaru Ito ,  Norio Ohta

发明人： Seiji Yonezawa ,  Keiji Kataoka ,  Hajime Fukke ,  Tsuneo Terasawa ,  Keizo Kato ,  Harukazu Miyamoto ,  Klaus Kinstatter ,  Masaru Ito ,  Norio Ohta

IPC分类号： G09B5/06 ,  G11B5/012 ,  G11B5/55 ,  G11B5/58 ,  G11B5/596 ,  G11B5/62 ,  G11B5/74 ,  G11B5/82 ,  G11B5/84 ,  G11B5/855 ,  G11B7/007 ,  G11B19/02 ,  G11B20/12 ,  G11B27/034 ,  G11B27/10 ,  G11B27/19 ,  G11B27/28 ,  G11B9/02 ,  B05D1/32 ,  G06K19/06 ,  G11B9/08

CPC分类号： B82Y10/00 ,  G09B5/065 ,  G11B19/02 ,  G11B20/1252 ,  G11B27/034 ,  G11B27/105 ,  G11B27/19 ,  G11B27/28 ,  G11B5/012 ,  G11B5/5526 ,  G11B5/58 ,  G11B5/596 ,  G11B5/59633 ,  G11B5/62 ,  G11B5/74 ,  G11B5/743 ,  G11B5/82 ,  G11B5/84 ,  G11B5/855 ,  G11B2020/1259 ,  G11B2220/211 ,  G11B2220/2537

摘要： The present invention uses a magnetic recording medium equipped with those magnetically readable recording servo pits which are preformed on a magnetic recording medium and have different magnetic characteristics from those of a recording magnetic film, detects magnetically a tracking signal or preformat signals such as sync signals, address signals, and the like, from the magnetic flux distribution (leakage magnetic field) occurring at edges of each of the servo pits using a magnetic head, makes servo control of the position of the magnetic head by the detected tracking signal and records or reads magnetically the data along the center of a track. In the magnetic recording medium of the present invention, magnetically readable, wobbled servo pits or sync pits, track address pits and data pits are preformed on the magnetic recording medium, these pit portions have locally different magnetic characteristics from those of the recording magnetic film and have a magnetic film structure wherein saturated magnetization is smaller than at other portions or the magnetic film is removed locally. These preformed pits can be read magnetically by detecting the local magnetic field (leakage magnetic field) generated at their edges by the magnetic head.

摘要翻译： 本发明使用配备有磁记录伺服凹坑的磁记录介质，它们在磁记录介质上执行，并且具有与记录磁膜的磁特性不同的磁特性，磁性地检测跟踪信号或预格式化信号，例如同步信号， 地址信号等从使用磁头的每个伺服凹坑的边缘处出现的磁通量分布（泄漏磁场）通过检测到的跟踪信号进行伺服控制磁头的位置并记录或读取 沿磁道中心的数据。 在本发明的磁记录介质中，在磁记录介质上执行磁读取的摆动的伺服凹坑或同步凹坑，轨道地址凹坑和数据凹坑，这些凹坑部分具有与记录磁膜的磁特性不同的磁特性， 具有其中饱和磁化小于其它部分的磁性膜结构，或者局部去除磁性膜。 这些预制凹坑可以通过磁头检测在其边缘处产生的局部磁场（泄漏磁场）而被磁性读取。

公开(公告)号：US4223187A

公开(公告)日：1980-09-16

申请号：US785847

申请日：1977-04-08

申请人： Seiji Yonezawa ,  Teruichi Tomura ,  Akira Fukuhara ,  Keizo Kato ,  Masuo Umemoto

发明人： Seiji Yonezawa ,  Teruichi Tomura ,  Akira Fukuhara ,  Keizo Kato ,  Masuo Umemoto

IPC分类号： H04N5/85 ,  G11B7/004 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B7/12 ,  H04N5/76

CPC分类号： G11B7/0904 ,  G11B7/004 ,  G11B7/007 ,  G11B7/0953 ,  G11B7/12

摘要： In order to record information spirally on a disk and to reproduce the recorded information accurately without any contact, at the recording, an information signal and a predetermined signal for synchronous detection are added together, the resultant signal is subjected to frequency modulation and, while a laser beam intensity-modulated by the frequency-modulated signal is minutely swung in the radial direction of the rotating disk at the same frequency as that of the synchronous detection signal, it is caused to impinge on the disk to thereby record the information spirally on a recording medium of the disk without any contact. During the reproduction, as the disk is being rotated, a light spot is caused to impinge along an information groove formed on the disk, and reflected light or transmitted light from the disk is detected in the form of an electric signal. A synchronous detection signal is derived from the electric signal and an envelope signal of the electric signal is synchronously rectified by the use of the snychronous detection signal to thus detect the offset between the light spot and the information groove and, as the offset is being corrected, the information signal is reproduced.

摘要翻译： 为了将信息螺旋地记录在盘上并准确地再现记录的信息而没有任何接触，在记录时，将信息信号和用于同步检测的预定信号相加在一起，对所得到的信号进行频率调制，而在 通过频率调制信号强度调制的激光束以与同步检测信号相同的频率在旋转盘的径向方向上微小地摆动，使其撞击到盘上，从而将信息螺旋地记录在 磁盘的记录介质没有任何接触。 在再现期间，当盘被旋转时，使光点沿形成在盘上的信息槽撞击，并且以电信号的形式检测来自盘的反射光或透射光。 从电信号导出同步检测信号，并且通过使用同步检测信号同步整流电信号的包络信号，从而检测光点和信息槽之间的偏移，并且当偏移被校正时 ，再现信息信号。

公开(公告)号：US08564781B2

公开(公告)日：2013-10-22

申请号：US13061620

申请日：2009-08-21

申请人： Nobuo Miyadera ,  Kenta Mizusawa ,  Kazunari Shinbo ,  Yasuo Ohdaira ,  Akira Baba ,  Keizo Kato ,  Futao Kaneko ,  Takahiro Kawakami

发明人： Nobuo Miyadera ,  Kenta Mizusawa ,  Kazunari Shinbo ,  Yasuo Ohdaira ,  Akira Baba ,  Keizo Kato ,  Futao Kaneko ,  Takahiro Kawakami

IPC分类号： G01N21/55

CPC分类号： G01N21/553

摘要： Provided is an SPR sensor which can achieve compaction and multichannel detection by simple configuration at a low cost. The SPR sensor comprises an optical path, and detection areas on the side surface thereof formed by laminating metal layers formed to cause surface plasmon resonance phenomenon. The SPR sensor is characterized in that two or more detection areas are formed for one optical path, a dielectric constant regulation layer is further laminated in at least one of the two or more detection areas, dielectric constant is regulated to have a different surface plasmon resonance in each detection area, and a dielectric constant regulation layer laminated in the at least one of the two or more detection areas functions as a layer exhibiting sensitivity to an object to be detected.

摘要翻译： 提供了一种SPR传感器，可以通过简单的配置以低成本实现压缩和多通道检测。 SPR传感器包括光路，并且通过层叠形成的引起表面等离子体共振现象的金属层形成的侧表面上的检测区域。 SPR传感器的特征在于，对于一​​个光路形成两个或更多个检测区域，在两个或更多个检测区域中的至少一个中进一步层压介电常数调节层，介电常数被调节为具有不同的表面等离子体共振 在每个检测区域中，并且层压在两个或更多个检测区域中的至少一个检测区域中的介电常数调节层用作对被检测物体具有敏感性的层。

公开(公告)号：US5295121A

公开(公告)日：1994-03-15

申请号：US304203

申请日：1989-01-31

申请人： Hirofumi Sukeda ,  Keizo Kato

发明人： Hirofumi Sukeda ,  Keizo Kato

IPC分类号： G11B11/10 ,  G11B11/105

CPC分类号： G11B11/10528 ,  G11B11/10508 ,  G11B11/10515 ,  G11B11/1053 ,  G11B11/10578 ,  G11B11/10582

摘要： A magneto-optic recording medium in which a vertically magnetized film on which magnetized domains are recorded by applying a light beam and an outer magnetic field is provided along a recording track and structure bands which do not contribute to read out of the magnetized domains are provided on both sides of the recording track so that the magnetization state of the magnetized domains recorded on the vertically magnetized film is read from an area limited by the width of the recording track. By scanning the magneto-optic recording medium along the recording track with a light beam having a diameter larger than the width of the recording track so as to heat an area larger than the width of the recording track to a temperature exceeding the curie temperature of the vertically magnetized film and also by applying a magnetic field in a predetermined direction to the area irradiated with the light beam, the magnetized domains are recorded in accordance with the direction of the applied magnetic field, and the magnetization state of the magnetized domains is read out only from the area limited by the width of the recording track through the magneto-optic effect.

摘要翻译： 提供了一种磁光记录介质，其中沿着记录轨道提供其上通过施加光束和外部磁场而记录有磁化畴的垂直磁化膜，并且提供了不有助于从磁化区读出的结构带 在记录轨迹的两侧上，记录在垂直磁化膜上的磁化畴的磁化状态从由记录轨道的宽度限制的区域读取。 通过使用直径大于记录轨道的宽度的光束沿着记录轨道扫描磁光记录介质，以便将大于记录轨道的宽度的区域加热至超过记录轨道的宽度的温度 垂直磁化膜，并且通过沿着预定方向施加磁场到照射到光束的区域，根据施加的磁场的方向记录磁化区域，并且读出磁化区域的磁化状态 只能从受到磁光效应的记录轨道的宽度限制的区域。

公开(公告)号：US08107193B2

公开(公告)日：2012-01-31

申请号：US12756958

申请日：2010-04-08

申请人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Keizo Kato

发明人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Keizo Kato

IPC分类号： G11B5/31

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3106 ,  G11B5/3143 ,  G11B5/315

摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole including a write magnetic pole layer for recording, the write magnetic pole layer comprising magnetic layers being antiferromagnetically coupled via a thin non-magnetic conductor layer between the magnetic layers, wherein the write magnetic pole layer for recording has a flare section which gradually widens in a height-wise direction of a throat height section. The main magnetic pole also includes a non-magnetic cap layer laminated above an uppermost layer of the write magnetic pole layer, the non-magnetic cap layer being textured to provide anisotropy, and a subsidiary magnetic pole layer for supplementing the recording laminated above the non-magnetic cap layer. The head also includes an auxiliary magnetic pole, a magnetic shield positioned via a non-magnetic layer on a trailing edge and both sides of the main magnetic pole in a track width direction, and a coil for generating a recording magnetic field.

摘要翻译： 根据一个实施例，垂直磁记录头包括主磁极，该主磁极包括用于记录的写磁极层，磁磁层包括通过磁性层之间的薄非磁性导体层反铁磁耦合的磁性层，其中， 用于记录的写磁极层具有在喉部高度部分的高度方向上逐渐变宽的喇叭部分。 主磁极还包括层叠在写磁极层的最上层上方的非磁性覆盖层，非磁性覆盖层被纹理化以提供各向异性，以及辅助磁极层，用于补充层叠在非磁性层上方的记录 磁盖层。 磁头还包括一个辅助磁极，一个位于磁道宽度方向的主磁极的后缘和两侧的非磁性层的磁屏蔽以及用于产生记录磁场的线圈。

公开(公告)号：US5330880A

公开(公告)日：1994-07-19

申请号：US936293

申请日：1992-08-28

申请人： Shinkichi Horigome ,  Yoshinori Miyamura ,  Yumiko Anzai ,  Keizo Kato ,  Hiroshi Shiraishi

发明人： Shinkichi Horigome ,  Yoshinori Miyamura ,  Yumiko Anzai ,  Keizo Kato ,  Hiroshi Shiraishi

IPC分类号： B29C33/38 ,  B29D17/00 ,  B29L17/00 ,  G11B7/26

CPC分类号： G11B7/261 ,  B29D17/005 ,  G11B7/26 ,  B29K2101/10

摘要： In a process for producing optical disks comprising the steps of subjecting the photoresist layer on a substrate formed of silicon, quartz, glass or a metal to light exposure, developing and etching treatments to obtain a stamper and then duplicating an information pattern for an optical disk from the stamper obtained above to a transparent substrate by using a UV curable resin to prepare a replicated substrate of an optical disk, a large number of stampers can be prepared in a short time by conducting the light exposure either by contacting the mask side surface of a substrate provided with a photomask having an information pattern for an optical disk to the photoresist side surface of said substrate having the photoresist layer or by noncontact projection, and a rapid replication of large quantities of replicated substrates becomes possible by using a large number of stampers thus prepared.

摘要翻译： 在制造光盘的方法中，包括以下步骤：将由硅，石英，玻璃或金属形成的基板上的光致抗蚀剂层进行曝光，显影和蚀刻处理以获得压模，然后复制光盘的信息图案 通过使用UV固化树脂从上述获得的印模到透明基板以制备光盘的复制基板，可以在短时间内通过曝光来制备大量印模机，方法是通过使曝光的掩模侧表面 具有光掩模的基板，其具有光盘的信息图案到具有光致抗蚀剂层的所述基板的光致抗蚀剂侧表面或通过非接触投影，并且通过使用大量的印模机可以快速复制大量的复制基板 从而准备好了。

公开(公告)号：US08189304B2

公开(公告)日：2012-05-29

申请号：US12636649

申请日：2009-12-11

申请人： Susumu Okamura ,  Yo Sato ,  Katsumi Hoshino ,  Hiroyuki Hoshiya ,  Kenichi Meguro ,  Keizo Kato

发明人： Susumu Okamura ,  Yo Sato ,  Katsumi Hoshino ,  Hiroyuki Hoshiya ,  Kenichi Meguro ,  Keizo Kato

IPC分类号： G11B5/39

CPC分类号： H01F10/3268 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3906 ,  G11B2005/3996 ,  H01F10/1936 ,  H01L43/08 ,  Y10T428/1121

摘要： A magnetoresistive magnetic head according to one embodiment uses a current-perpendicular-to-plane magnetoresistive element having a laminate of a free layer, an intermediate layer, and a pinned layer, the pinned layer being substantially fixed to a magnetic field to be detected, wherein either the pinned layer or the free layer includes a Heusler alloy layer represented by a composition of X—Y—Z, wherein X is between about 45 at. % and about 55 at. % and is Co or Fe, Y accounts for between about 20 at. % and about 30 at. % and is one or more elements selected from V, Cr, Mn, and Fe, and Z is between about 20 at. % and about 35 at. % and is one or more elements selected from Al, Si, Ga, Ge, Sn, and Sb, the other layer including a high saturation magnetization material layer having higher saturation magnetization than that of the Heusler alloy, and where the direction of the current flowing perpendicular to plane being a direction in which an electron flows from the Heusler alloy layer into the high saturation magnetization material layer. Additional embodiments are also presented.

摘要翻译： 根据一个实施例的磁阻磁头使用具有自由层，中间层和被钉扎层的叠层的电流 - 垂直于平面的磁阻元件，被钉扎层基本上固定在待检测的磁场上， 其中被钉扎层或自由层包括由X-Y-Z组合物表示的Heusler合金层，其中X在约45at之间。 ％和约55在。 ％，为Co或Fe，Y约为20盎司。 ％和约30在。 ％且为选自V，Cr，Mn和Fe中的一种或多种元素，Z为约20at。 ％和约35英寸 ％，并且是选自Al，Si，Ga，Ge，Sn和Sb中的一种或多种元素，另一层包括具有比Heusler合金高饱和磁化强度的高饱和磁化材料层，并且其中电流方向 垂直于平面流动的方向是电子从Heusler合金层流入高饱和磁化材料层的方向。 还提供了另外的实施例。

公开(公告)号：US20110249360A1

公开(公告)日：2011-10-13

申请号：US12756958

申请日：2010-04-08

申请人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Keizo Kato

发明人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Keizo Kato

IPC分类号： G11B5/187 ,  G11B21/02 ,  G11B5/127 ,  G11B5/17

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3106 ,  G11B5/3143 ,  G11B5/315

摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole including a write magnetic pole layer for recording, the write magnetic pole layer comprising magnetic layers being antiferromagnetically coupled via a thin non-magnetic conductor layer between the magnetic layers, wherein the write magnetic pole layer for recording has a flare section which gradually widens in a height-wise direction of a throat height section. The main magnetic pole also includes a non-magnetic cap layer laminated above an uppermost layer of the write magnetic pole layer, the non-magnetic cap layer being textured to provide anisotropy, and a subsidiary magnetic pole layer for supplementing the recording laminated above the non-magnetic cap layer. The head also includes an auxiliary magnetic pole, a magnetic shield positioned via a non-magnetic layer on a trailing edge and both sides of the main magnetic pole in a track width direction, and a coil for generating a recording magnetic field.

摘要翻译： 根据一个实施例，垂直磁记录头包括主磁极，该主磁极包括用于记录的写磁极层，磁磁层包括通过磁性层之间的薄非磁性导体层反铁磁耦合的磁性层，其中， 用于记录的写磁极层具有在喉部高度部分的高度方向上逐渐变宽的喇叭部分。 主磁极还包括层叠在写磁极层的最上层上方的非磁性覆盖层，非磁性覆盖层被纹理化以提供各向异性，以及辅助磁极层，用于补充层叠在非磁性层上方的记录 磁盖层。 磁头还包括一个辅助磁极，一个位于磁道宽度方向的主磁极的后缘和两侧的非磁性层的磁屏蔽以及用于产生记录磁场的线圈。