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公开(公告)号：US07517436B2
公开(公告)日：2009-04-14
申请号：US10476628
申请日：2003-03-12
IPC分类号： C23C14/34
CPC分类号： G11B11/10582 , G11B11/10584 , G11B11/10586
摘要： In a manufacturing method of a magneto-optical recording medium formed by laminating a plurality of magnetic layers, there is provided a manufacturing method whereby at least two of the magnetic layers can be properly and individually formed by sputtering the same target means in the same vacuum vessel under different conditions at the time of a sputtering process in accordance with an element composition ratio and/or magnetic characteristics of each layer.
摘要翻译： 在通过层叠多个磁性层形成的磁光记录介质的制造方法中，提供了一种制造方法，其中可以通过在相同的真空中溅射相同的目标装置来适当地和单独地形成至少两个磁性层 根据元件组成比和/或各层的磁特性，在溅射工艺时在不同条件下进行。
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公开(公告)号：US07060373B2
公开(公告)日：2006-06-13
申请号：US10765601
申请日：2004-01-27
申请人： Tetsuhiro Sakamoto , Kazutomo Miyata , Teruyuki Ota , Makoto Watanabe , Yasuhito Tanaka , Goro Fujita , Takeshi Miki , Kazuhiko Fujiie
发明人： Tetsuhiro Sakamoto , Kazutomo Miyata , Teruyuki Ota , Makoto Watanabe , Yasuhito Tanaka , Goro Fujita , Takeshi Miki , Kazuhiko Fujiie
IPC分类号： G11B11/105
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593
摘要： A magneto-optical recording medium includes a first magnetic layer (reproduction layer), a second magnetic layer (control layer), a third magnetic layer (blocking layer), and a fourth magnetic layer (recording layer) having respective Curie temperatures TC1, TC2, TC3 and TC4. The Curie temperatures of the layers satisfy the relationships TC1>TC3>TC2 and TC4>TC3. In addition, the magnetic anisotropy of the third magnetic layer Ku3 is greater than that of the second magnetic layer Ku2. A magnetic domain wall in the first magnetic layer in front of the spot irradiated by the reproduction light in the direction of travel is displaced toward the peak temperature portion so that a recorded domain is expanded. Displacement in the spot direction of a domain wall in the first magnetic layer behind the reproduction light spot in the direction of travel is suppressed. The second and third magnetic layers control the magnetic exchange coupling between the first and fourth magnetic layers.
摘要翻译： 磁光记录介质包括具有各自的居里温度T
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公开(公告)号：US20130007781A1
公开(公告)日：2013-01-03
申请号：US13583883
申请日：2011-03-11
IPC分类号： G11B7/24
CPC分类号： G11B7/24038
摘要： An optical recording medium is provided. The optical recording medium includes a multilayer including an N (N≦5) number of interfaces capable of reflecting incident light.
摘要翻译： 提供光记录介质。 光记录介质包括具有能够反射入射光的N（N＆nlE; 5）数个接口的多层。
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4.发明申请公开(公告)号：US20120092977A1
公开(公告)日：2012-04-19
申请号：US13271498
申请日：2011-10-12
IPC分类号： G11B7/1374 , B05D3/06 , B05D5/06 , G11B7/242 , G11B7/26
CPC分类号： G11B7/259 , G11B7/00781 , G11B7/24044 , G11B7/2405 , G11B7/24062 , G11B7/258 , G11B2007/0009
摘要： An optical recording medium includes a recording layer in which recording of a mark is selectively performed in a depth direction by irradiation of first light, and the mark is formed in multilayer form; and a reflection film reflecting second light of a wavelength different from a wavelength of the first light, and provided on a lower layer side of the recording layer.
摘要翻译： 光记录介质包括记录层，其中通过照射第一光而在深度方向上选择性地进行标记的记录，并且标记形成为多层形式; 以及反射膜，其反射与第一光的波长不同的波长的第二光，并设置在记录层的下层侧。
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5.发明申请公开(公告)号：US20110310723A1
公开(公告)日：2011-12-22
申请号：US13156625
申请日：2011-06-09
IPC分类号： G11B7/125
CPC分类号： G11B7/00452 , B82Y10/00 , G11B7/126 , G11B2007/0009
摘要： An optical information recording method includes emitting light having a wavelength λ1 from a first light source with a pulse width of time tw1 or more and power P1, emitting light having a wavelength λ2 from a second light source with a pulse width of time tw2, a repetition interval T, and power P2, and performing information recording by simultaneously irradiating an identical part of a recording medium with the light from the first light source and the light from the second light source, in which the wavelength λ1 and the wavelength λ2 satisfy λ1>500 nm>λ2 and λ0 which is expressed as 1/λ1+1/λ2=1/λ0 satisfies a relationship of λ0 P1.
摘要翻译： 一种光学信息记录方法，包括从具有时间tw1以上的脉冲宽度的第一光源发射具有波长λ1的光和从具有时间tw2的脉冲宽度的第二光源发射具有波长λ2的光的功率P1，a 重复间隔T和功率P2，并且通过用波长λ1和波长λ2满足λ1的来自第一光源的光和来自第二光源的光同时照射记录介质的相同部分来执行信息记录 > 500nm>λ2，表示为1 /λ1+ 1 /λ2= 1 /λ0的λ0满足λ0<300nm的关系，第一光源的发射和第二光源的发射满足tw2 < tw1，T
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6.发明授权Method for reproducing information data from a magneto-optical storage medium in reverse direction with recording 失效用于通过记录从相对方向从磁光存储介质再现信息数据的方法公开(公告)号：US06944100B2
公开(公告)日：2005-09-13
申请号：US10384710
申请日：2003-03-11
CPC分类号： G11B20/1217 , G11B11/10508 , G11B11/10515 , G11B11/10528 , G11B11/10595 , G11B20/1833 , G11B20/1866 , G11B2020/1275 , G11B2220/2525
摘要： A magneto-optical recording/reproducing method is disclosed which causes a laser beam to be emitted to a disc recording medium having information recorded thereon earlier by magnetic field modulation, the laser beam causing the disc recording medium to develop a temperature distribution such as to generate a driving force for moving a domain wall of a magnetic domain in the medium so that the magnetic domain smaller in diameter than a spot of the laser beam is expanded sufficiently to let information recorded in the domain be detected. The method comprises the steps of: recording information to the disc recording medium while rotating the medium in a first rotating direction; and reproducing the information that was recorded to the disc recording medium in the recording step while rotating the medium in a second rotating direction reverse to the first rotating direction.
摘要翻译： 公开了一种磁光记录/再现方法，其使得激光束通过磁场调制早日发射到具有记录信息的盘记录介质，激光束使盘记录介质产生温度分布，从而产生 用于移动介质中的磁畴的畴壁的驱动力，使得直径比激光束的点小的磁畴被充分扩大，以便检测记录在该域中的信息。 该方法包括以下步骤：在沿第一旋转方向旋转介质的同时将信息记录到盘记录介质; 并且在与第一旋转方向相反的第二旋转方向上旋转介质的同时，在记录步骤中再现记录到盘记录介质的信息。
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公开(公告)号：US20050099908A1
公开(公告)日：2005-05-12
申请号：US10950385
申请日：2004-09-28
申请人： Goro Fujita , Kazuhiko Fujiie , Yasuhito Tanaka , Kimihiro Saito , Tetsuhiro Sakamoto , Takeshi Miki
发明人： Goro Fujita , Kazuhiko Fujiie , Yasuhito Tanaka , Kimihiro Saito , Tetsuhiro Sakamoto , Takeshi Miki
CPC分类号： G11B27/24 , G11B7/0053 , G11B7/00718
摘要： The present invention provides an optical disk drive and optical disk playback method, with an improved capability of reading address information from an optical disk having address information recorded thereon by wobbling one of side walls of a recording track, with a wider tilt margin.
摘要翻译： 本发明提供了一种光盘驱动器和光盘播放方法，其具有通过以更宽的倾斜余量摆动记录轨道的一个侧壁而从其上记录有地址信息的光盘读取地址信息的能力。
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8.发明授权Substrate for optical recording media, optical recording medium, manufacturing process for optical recording media, and optical recording/reproducing method 失效用于光学记录介质的基板，光学记录介质，用于光学记录介质的制造工艺，以及光学记录/再现方法公开(公告)号：US06731589B2
公开(公告)日：2004-05-04
申请号：US09747721
申请日：2000-12-22
申请人： Tetsuhiro Sakamoto , Goro Fujita
发明人： Tetsuhiro Sakamoto , Goro Fujita
IPC分类号： G11B700
CPC分类号： G11B11/10584 , G11B7/00718 , G11B7/24076 , G11B7/253 , G11B7/2531 , G11B7/2534 , G11B7/26 , G11B11/10578 , G11B2007/24304
摘要： According to the present invention, when a land-groove recording method is adopted, thermal crosstalk between a land and an adjoining groove is suppressed effectively. Inhomogeneity of a recording layer between the land and groove is suppressed effectively. A substrate for optical recording media comprises groove-like concave parts (2) and convex parts each created between adjoining concave parts. A border sidewall (4) between a concave part and an adjoining convex part (2) has a plurality of sidewall planes, that is, at least a first sidewall plane (41) that leads to the bed of the concave part and a second sidewall plane (42) that leads to the apical plane of the convex part. The first sidewall plane meets the bed of the concave part at an angle ranging from 120° to less than 180°. The second sidewall plane meets the bed of the concave part at an angle ranging from 90° to 110°. A discontinuous part (6) is produced at least along a borderline between the first sidewall plane and second sidewall plane. The presence of the discontinuous part (6) is effective in minimizing thermal crosstalk between the concave part (2) and convex part (3) and suppressing inhomogeneity of a recording layer between a land and an adjoining groove.
摘要翻译： 根据本发明，当采用槽脊记录方法时，能够有效地抑制焊盘与邻接槽之间的热串扰。 有效地抑制了陆地和凹槽之间的记录层的不均匀性。 用于光学记录介质的基板包括槽状凹部（2）和分别形成在相邻的凹部之间的凸部。 在凹部和相邻的凸部（2）之间的边界侧壁（4）具有多个侧壁面，即至少第一侧壁面（41），其通向凹部的床，第二侧壁 平面（42），其导致凸部的顶端平面。 第一侧壁平面以120°至小于180°的角度与凹部的床相遇。 第二侧壁平面以90°至110°的角度与凹部的床相遇。 至少沿着第一侧壁平面和第二侧壁平面之间的边界线产生不连续部分（6）。 不连续部分（6）的存在有效地使凹部（2）和凸部（3）之间的热串扰最小化，并且抑制焊盘和相邻凹槽之间的记录层的不均匀性。
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公开(公告)号：US08526284B2
公开(公告)日：2013-09-03
申请号：US13082564
申请日：2011-04-08
申请人： Tetsuhiro Sakamoto
发明人： Tetsuhiro Sakamoto
IPC分类号： G11B7/24
CPC分类号： G11B7/24038
摘要： A multilayer optical recording medium includes a plurality of interfacial surfaces that reflect an incident light beam, and neighboring ones of the interfacial surfaces has a spacer therebetween. When a light incident surface side is defined as an upper surface side, a different thickness layer unit including the spacers having different thicknesses arranged sequentially is disposed on the lowermost layer side, and the spacers each having a thickness different from the thickness of any one of the spacers arranged in the different thickness layer unit are sequentially arranged above the different thickness layer unit.
摘要翻译： 多层光学记录介质包括反射入射光束的多个界面，并且相邻的界面具有间隔物。 当光入射面侧被定义为上表面侧时，在最下层侧设置包括依次布置的具有不同厚度的间隔物的不同厚度层单元，并且每个间隔物的厚度不同于 布置在不同厚度层单元中的间隔件依次布置在不同厚度层单元的上方。
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公开(公告)号：US08462608B2
公开(公告)日：2013-06-11
申请号：US13319796
申请日：2010-05-17
申请人： Tetsuhiro Sakamoto , Jun Nakano , Takehide Endo , Naoki Okawa
发明人： Tetsuhiro Sakamoto , Jun Nakano , Takehide Endo , Naoki Okawa
IPC分类号： G11B3/70
CPC分类号： G11B7/00736 , G11B7/2585 , Y10T428/24545
摘要： [Object] To provide a durable read-only optical recording medium having less variances in characteristics of a metal reflective film due to a temporal change.[Solving Means] Provided is a read-only optical recording medium (100) including: a substrate (101); an information recording surface onto which information is recorded by combining pits (P) and lands (L); and a metal reflective film (102) that is provided in contact with the information recording surface and represented by Al100-x-zXxZz, where x and z each represent an atomic %, X is constituted of an element including at least Ti, Z is constituted of an element including at least Fe, x is 1.0 to 3.0, and z is 0.05 to 1.0.
摘要翻译： 提供一种耐久的只读光学记录介质，其由于时间变化而具有较小的金属反射膜特性的变化。 [解决方案]提供一种只读光学记录介质（100），包括：基板（101）; 信息记录表面，其上通过组合凹坑（P）和平台（L）而记录信息; 和与Al100-x-zXxZz（其中x和z各自表示原子％）表示的与信息记录表面接触的金属反射膜（102），X由至少包含Ti的元素组成，Z为 由至少包含Fe的元素构成，x为1.0〜3.0，z为0.05〜1.0。
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