公开(公告)号：US07355929B2

公开(公告)日：2008-04-08

申请号：US10825264

申请日：2004-04-15

申请人： Makoto Watanabe ,  Kazutomo Miyata ,  Teruyuki Ota ,  Minoru Tobita

发明人： Makoto Watanabe ,  Kazutomo Miyata ,  Teruyuki Ota ,  Minoru Tobita

IPC分类号： G11B11/00

CPC分类号： G11B11/10597 ,  G11B7/00736 ,  G11B7/24082 ,  G11B7/24094 ,  G11B11/10515 ,  G11B11/10528 ,  G11B11/10584 ,  G11B19/122 ,  G11B20/00086 ,  G11B20/00268

摘要： A magneto-optical disk having a small-sized diameter and a large capacity and able to record and reproduce disk discrimination information, and a recording method and a reproducing method of the same, wherein a recording layer including a main recording region in which a first information is recorded, a sub recording region in which a second information including the disk discrimination information is recorded, and a buffer region formed between the main recording region and the sub recording region and in which a third information is recorded is provided on a substrate, the second information is recorded by a mark array formed in stripe shapes in the sub recording region and the buffer region, a plurality of marks constituting the mark array are obtained by changing the magnetization state of the recording layer, and the third information is reproduced by a modulation signal of a reflection ratio along a circumferential direction of the disk.

摘要翻译： 具有小直径和大容量并且能够记录和再现盘识别信息的磁光盘及其记录方法和再现方法，其中包括主记录区的记录层，其中第一 记录信息，其中记录有包含盘识别信息的第二信息的子记录区域和形成在主记录区域和副记录区域之间并且其中记录有第三信息的缓冲区域设置在基板上， 通过在子记录区域和缓冲区域中以条形形成的标记阵列记录第二信息，通过改变记录层的磁化状态来获得构成标记阵列的多个标记，并且第三信息由 沿盘的圆周方向的反射率的调制信号。

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 。 此外，第三磁性层K Sub3的磁各向异性大于第二磁性层K Sub2的磁各向异性。 由再生光在行进方向上照射的光斑前面的第一磁性层中的磁畴壁朝向峰值温度部位移位，使得记录域扩大。 抑制了在再生光点的行进方向后面的第一磁性层中的畴壁的光斑方向的位移。 第二和第三磁性层控制第一和第四磁性层之间的磁交换耦合。

公开(公告)号：US07420910B2

公开(公告)日：2008-09-02

申请号：US11526392

申请日：2006-09-25

申请人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

发明人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

IPC分类号： G11B7/24

CPC分类号： G11B11/10578 ,  G11B7/24079 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10597

摘要： An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

摘要翻译： 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息，并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质通过使用在1.5μm至1.7μm的范围内选择的轨道间距T p 1> 1的衬底和凹槽深度d 1 1 < 选择在70nm至90nm的范围内，并且第二光学记录介质通过使用在1.2μm至1.3μm的范围内选择的轨道间距T p 2 <2>的基板11来构造 并且沟槽12的凹槽深度d 2 2 在150nm至180nm的范围内选择。 这样，光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

公开(公告)号：US20050068854A1

公开(公告)日：2005-03-31

申请号：US10503265

申请日：2003-02-06

申请人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

发明人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

IPC分类号： G11B7/007 ,  G11B11/105 ,  G11B11/00 ,  G11B7/24

CPC分类号： G11B11/10578 ,  G11B7/24079 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10597

摘要： An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

摘要翻译： 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息，并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质是通过使用轨道间距Tp1在1.5μm至1.7μm的范围内选择的衬底和在70nm至90nm的范围内选择的槽深度d1的衬底来构造的，而第二光学记录介质 通过使用轨道间距Tp2在1.2μm至1.3μm的范围内选择的衬底11和槽12的槽深度d2在150nm至180nm的范围内选择来构造记录介质。 这样，光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

公开(公告)号：US20070019527A1

公开(公告)日：2007-01-25

申请号：US11526392

申请日：2006-09-25

申请人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

发明人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

IPC分类号： G11B7/135

CPC分类号： G11B11/10578 ,  G11B7/24079 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10597

摘要： An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

摘要翻译： 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息，并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质通过使用在1.5μm至1.7μm的范围内选择的轨道间距T p 1 1＆lt; 1＆gt; 1的槽深度d 1 选择在70nm至90nm的范围内，并且第二光学记录介质通过使用在1.2μm至1.3μm的范围内选择的轨道间距T p 2 <2>的基板11来构造 并且沟槽12的凹槽深度d 2 2 在150nm至180nm的范围内选择。 这样，光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

公开(公告)号：US07113470B2

公开(公告)日：2006-09-26

申请号：US10503265

申请日：2003-02-06

申请人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

发明人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

IPC分类号： G11B7/00

CPC分类号： G11B11/10578 ,  G11B7/24079 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10597

摘要： An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

摘要翻译： 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息，并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质通过使用在1.5μm至1.7μm的范围内选择的轨道间距T p 1 1＆lt; 1＆gt; 1的槽深度d 1 选择在70nm至90nm的范围内，并且第二光学记录介质通过使用在1.2μm至1.3μm的范围内选择的轨道间距T p 2 <2>的基板11来构造 并且沟槽12的凹槽深度d 2 2 在150nm至180nm的范围内选择。 这样，光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

公开(公告)号：US06277462B1

公开(公告)日：2001-08-21

申请号：US09455171

申请日：1999-12-06

申请人： Makoto Watanabe ,  Kazutomo Miyata

发明人： Makoto Watanabe ,  Kazutomo Miyata

IPC分类号： B32B302

CPC分类号： G11B7/252 ,  G11B7/24 ,  G11B7/243 ,  G11B7/257 ,  G11B7/258 ,  G11B7/26 ,  G11B11/10582 ,  G11B11/10584 ,  G11B11/10586 ,  G11B2007/24306 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： In an optical recording medium in which at least a heat diffusion layer, a first dielectric layer, an information recording layer and a second dielectric layer are formed in this order on a substrate and signals are recorded and/or reproduced by the light illuminated from the side of the second dielectric layer, it is desirable to optimize recording and/or reproducing characteristics. With this in view, an under layer 3 for optimizing surface properties of a heat diffusion layer 4 is formed between a disc substrate 2 and the heat diffusion layer 4.

摘要翻译： 在其中在基板上依次形成至少一个热扩散层，第一介电层，信息记录层和第二介电层的光记录介质，并且通过从基板上照射的光来记录和/或再现信号 第二电介质层的侧面，期望优化记录和/或再现特性。 鉴于此，在盘基板2和热扩散层4之间形成用于优化热扩散层4的表面特性的底层3。

公开(公告)号：US08681120B2

公开(公告)日：2014-03-25

申请号：US12938714

申请日：2010-11-03

申请人： Hiroki Kanehira ,  Katsunori Sato ,  Kazutomo Miyata

发明人： Hiroki Kanehira ,  Katsunori Sato ,  Kazutomo Miyata

IPC分类号： G06F3/045

CPC分类号： G06F3/044

摘要： An input apparatus includes an operation surface, a plurality of first electrodes, a plurality of second electrodes, and a detection unit. The operation surface is operated with an operation object. The first electrodes include first electrode units and second electrode units. The first electrode units and the second electrode units are alternately connected in a first direction parallel to the operation surface. The second electrodes include third electrode units and fourth electrode units. The third and fourth electrode units are alternately connected in a second direction parallel to the operation surface. The second direction crosses the first direction. The fourth electrode units are respectively opposed to the second electrode units. The detection unit detects, based on a change in capacitance between the second electrode units and the fourth electrode units, a position where the operation object performs one of approach and touch with respect to the operation surface.

摘要翻译： 输入装置包括操作表面，多个第一电极，多个第二电极和检测单元。 操作面用操作对象操作。 第一电极包括第一电极单元和第二电极单元。 第一电极单元和第二电极单元在平行于操作表面的第一方向交替连接。 第二电极包括第三电极单元和第四电极单元。 第三和第四电极单元在平行于操作表面的第二方向交替连接。 第二个方向穿过第一个方向。 第四电极单元分别与第二电极单元相对。 检测单元基于第二电极单元和第四电极单元之间的电容变化来检测操作对象执行相对于操作表面的接近和触摸之一的位置。

公开(公告)号：US5808972A

公开(公告)日：1998-09-15

申请号：US744860

申请日：1996-11-05

申请人： Hiroyuki Matsumoto ,  Koichiro Ishii ,  Kazutomo Miyata

发明人： Hiroyuki Matsumoto ,  Koichiro Ishii ,  Kazutomo Miyata

IPC分类号： G11B7/006 ,  G11B7/125 ,  G11B11/105 ,  G11B11/00

CPC分类号： G11B7/126 ,  G11B11/10521 ,  G11B11/10595 ,  G11B7/006

摘要： A stabilized overwriteable optical recording method, wherein overwriting is performed sufficiently because erasure does not become poor with a low level laser beam intensity P.sub.L set too low. The method includes setting the recording laser beam intensity in order to perform recording on an overwriteable optical recording medium, finding the lower limit value of laser beam intensity at which a high temperature process occurs, and, based on this lower limit value of laser beam intensity, provisionally setting a high level laser beam intensity. After magnetization reversal marks have been formed in a test recording region by this lower limit value, the test recording region is played back. Then, after the test recording region has been illuminated with a laser beam, performing erasure of the magnetization reversal marks. Then the test recording region is played back, and by making a comparison of the playback signals before and after erasure was performed, the optimum low level laser beam intensity is set.

摘要翻译： 一种稳定的可重写光学记录方法，其中，由于擦除不会变差，而低水平的激光束强度PL设置得太低，所以进行了重写。 该方法包括设置记录激光束强度以便在可重写光学记录介质上执行记录，找到发生高温处理的激光束强度的下限值，并且基于该激光束强度的下限值 ，暂时设定高水平的激光束强度。 在通过该下限值在测试记录区域中形成磁化反转标记之后，重放测试记录区域。 然后，在用激光束照射测试记录区之后，执行磁化反转标记的擦除。 然后，重放测试记录区域，并且通过比较擦除前后的重放信号，设定最佳的低电平激光束强度。

公开(公告)号：US06194046B1

公开(公告)日：2001-02-27

申请号：US09244200

申请日：1999-02-04

申请人： Toru Abiko ,  Kazutomo Miyata

发明人： Toru Abiko ,  Kazutomo Miyata

IPC分类号： B32B302

CPC分类号： G11B7/243 ,  G11B7/257 ,  G11B7/26 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/2432 ,  G11B2007/24322 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： An optical recording medium having sufficient repetition recording durability and its manufacturing method. A first dielectric layer 2 is layered on a major surface 1a of a substrate 1, and a recording layer 5, made up of two layers, namely a first thin film 3 and a second thin film 4 having different crystallization start temperatures, is formed on the first dielectric layer 2. A second dielectric layer 6, a reflective layer 7 and a protective layer 8 are then sequentially formed. One of the first thin film 3 or the second thin film 4 preferably contains nitrogen or oxygen. It is more desirable that the first thin film 3 lying towards the substrate 1 contains nitrogen or oxygen. The difference between the crystallization start temperature of the first thin film 3 and that of the second thin film 4 be 20° C. or more. It is more desirable that the crystallization start temperature of the first thin film 3 lying towards the substrate 1 be higher by 20° C. or more than that of the second thin film 4. The thicknesses of the first thin film 3 and the second thin film 4 are desirably each 3 nm or more.

摘要翻译： 具有足够重复记录耐久性的光记录介质及其制造方法。 第一电介质层2层叠在基板1的主表面1a上，并且由两层构成的记录层5即具有不同结晶起始温度的第一薄膜3和第二薄膜4形成在 第一电介质层2.然后顺序地形成第二电介质层6，反射层7和保护层8。 第一薄膜3或第二薄膜4中的一个优选含有氮或氧。 更希望朝向基板1的第一薄膜3含有氮或氧。 第一薄膜3的结晶起始温度与第二薄膜4的结晶开始温度的差为20℃以上。 更希望第一薄膜3朝向基板1的结晶开始温度比第二薄膜4高20℃或更高。第一薄膜3和第二薄膜3的厚度 膜4优选为3nm以上。