公开(公告)号：US07423939B2

公开(公告)日：2008-09-09

申请号：US10779337

申请日：2004-02-13

申请人： Takeshi Miki ,  Kazuhiko Fujiie ,  Yasuhito Tanaka ,  Goro Fujita ,  Tetsuhiro Sakamoto

发明人： Takeshi Miki ,  Kazuhiko Fujiie ,  Yasuhito Tanaka ,  Goro Fujita ,  Tetsuhiro Sakamoto

IPC分类号： G11B11/00 ,  C23C14/35 ,  C23C16/00

CPC分类号： G11B11/10582 ,  G11B11/10517 ,  G11B11/10584

摘要： A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which magnetic separation of groove side-wall portions is performed more reliably; as a result a magneto-optical recording medium with satisfactory recording and reproduction characteristics can be provided. The method is to manufacture a magneto-optical recording medium in which on a substrate 1 having grooves 12 at least a reproduction layer and a recording layer, each of which is formed of magnetic layers, are deposited and recorded information is reproduced through domain wall displacement in the reproduction layer; and the method includes a first annealing process in which, after depositing at least the reproduction layer and recording layer on the substrate 1 on which are formed lands 11 and grooves 12, only side-wall portions 13 between adjacent lands 11 and grooves 12 are irradiated with laser light L1, and a second magnetization annealing process in which regions including adjacent side-wall portions 13 and lands between side-wall portions 13 are irradiated with laser light L2 having a spot diameter greater than the spot diameter of the laser light in the first annealing process, while applying an external magnetic field Hex.

摘要翻译： 提供了一种制造磁光记录介质的方法，其中通过再现层中的畴壁位移进行记录信息的读取，其中槽侧壁部分的磁分离更可靠地进行; 结果，可以提供具有令人满意的记录和再现特性的磁光记录介质。 该方法是制造磁光记录介质，其中在至少具有由磁层形成的再生层和记录层的凹槽12的基板1上沉积，并通过畴壁位移再现记录信息 在复制层; 并且该方法包括第一退火处理，其中在至少将再生层和记录层沉积在其上形成有焊盘11和凹槽12的基板1上之后，仅在相邻焊盘11和槽12之间照射侧壁部分13 激光L 1和第二磁化退火处理，其中包括相邻的侧壁部分13和侧壁部分13之间的区域的区域被照射具有大于激光的光斑直径的光点直径的激光L 2 在第一退火过程中，同时施加外部磁场H 。

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：US06940800B2

公开(公告)日：2005-09-06

申请号：US10017156

申请日：2001-12-14

申请人： Kensuke Fujimoto ,  Shunji Yoshimura ,  Atsushi Fukumoto ,  Yasuhito Tanaka

发明人： Kensuke Fujimoto ,  Shunji Yoshimura ,  Atsushi Fukumoto ,  Yasuhito Tanaka

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B20/10 ,  G11B20/18 ,  H03M13/39 ,  H03M13/41 ,  G11B5/76

CPC分类号： G11B20/10009 ,  G11B7/005 ,  G11B7/1267 ,  G11B11/10515 ,  G11B11/1053 ,  G11B11/10595 ,  G11B20/10 ,  G11B20/18 ,  G11B20/1833 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/6343

摘要： The present invention provides an apparatus and a method for precisely and adequately evaluating actual quality of reproduced data whenever applying a maximum likelihood decoder for converting signal reproduced from a recording medium into binary signal. Based on data arrays of a pair of binary data outputted from a “Viterbi” decoder, SAM values are secured by selecting any of path-metric differential values (00) and (11) being the difference between a pair of values compared when renewing path-metric values PMM (00) and (11) outputted from the “Viterbi” decoder. The minimum SAM value for an ideally-reproduced signal is outputted from a constant generating circuit. If the SAM values are verified as valid, and yet, if the SAM values coincide with the equation “input SAM values”≦“data value outputted from the constant generating circuit”, then squared values outputted from a square circuit are averaged by an averaging circuit. Finally, the average value is outputted as the reproduced signal evaluation.

摘要翻译： 本发明提供了一种用于在应用用于将从记录介质再现的信号转换成二进制信号的最大似然解码器时，精确且充分地评估再现数据的实际质量的装置和方法。 基于从“维特比”解码器输出的一对二进制数据的数据阵列，通过选择路径度量差分值（00）和（11）中的任一个作为在更新路径上比较的一对值之间的差异来确保SAM值 从“维特比”解码器输出的测量值PMM（00）和（11）。 理想再现信号的最小SAM值从恒定发生电路输出。 如果SAM值被验证为有效，然而，如果SAM值与从常数产生电路输出的等式“输入SAM值”<=“数据值”一致，则从平方电路输出的平方值由 平均电路。 最后，平均值作为再现信号评估输出。

公开(公告)号：US20050190630A1

公开(公告)日：2005-09-01

申请号：US11113557

申请日：2005-04-25

申请人： Kensuke Fujimoto ,  Shunji Yoshimura ,  Atsushi Fukumoto ,  Yasuhito Tanaka

发明人： Kensuke Fujimoto ,  Shunji Yoshimura ,  Atsushi Fukumoto ,  Yasuhito Tanaka

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B20/10 ,  G11B20/18 ,  H03M13/39 ,  H03M13/41 ,  G11C8/00

CPC分类号： G11B20/10009 ,  G11B7/005 ,  G11B7/1267 ,  G11B11/10515 ,  G11B11/1053 ,  G11B11/10595 ,  G11B20/10 ,  G11B20/18 ,  G11B20/1833 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/6343

摘要： The present invention provides an apparatus and a method for precisely and adequately evaluating actual quality of reproduced data whenever applying a maximum likelihood decoder for converting signal reproduced from a recording medium into binary signal Based on data arrays of a pair of binary data outputted from a “Viterbi” decoder, SAM values are secured by selecting any of path-metric differential values (00) and (11) being the difference between a pair of values compared when renewing path-metric values PMM (00) and (11) outputted from the “Viterbi” decoder. The minimum SAM value for an ideally-reproduced signal is outputted from a constant generating circuit. If the SAM values are verified as valid, and yet, if the SAM values coincide with the equation “input SAM values”≦“data value outputted from the constant generating circuit”, then squared values outputted from a square circuit are averaged by an averaging circuit. Finally, the average value is outputted as the reproduced signal evaluation.

摘要翻译： 本发明提供了一种用于在将用于将从记录介质再现的信号转换为二进制信号的最大似然解码器的情况下精确地和适当地评估再现数据的实际质量的装置和方法。基于从“ 维特比“解码器，通过选择路径度量差分值（00）和（11）中的任何一个来确保SAM值，所述差分值是当从更新路由度量值PMM（00）和（11）更新时比较的一对值之间的差 “维特比”解码器。 理想再现信号的最小SAM值从恒定发生电路输出。 如果SAM值被验证为有效，然而，如果SAM值与从常数产生电路输出的等式“输入SAM值”<=“数据值”一致，则从平方电路输出的平方值由 平均电路。 最后，平均值作为再现信号评估输出。

公开(公告)号：US20050041537A1

公开(公告)日：2005-02-24

申请号：US10834196

申请日：2004-04-29

申请人： Yasuhito Tanaka ,  Kazuhiko Fujiie ,  Goro Fujita ,  Tetsuhiro Sakamoto ,  Takeshi Miki

发明人： Yasuhito Tanaka ,  Kazuhiko Fujiie ,  Goro Fujita ,  Tetsuhiro Sakamoto ,  Takeshi Miki

IPC分类号： G11B7/007 ,  G11B7/09 ,  G11B11/105 ,  G11B11/00 ,  G11B7/00

CPC分类号： G11B11/10595 ,  G11B7/00736 ,  G11B7/094 ,  G11B7/0945 ,  G11B11/10576

摘要： An optical head is used to record and playback information to and from a magneto-optical storage medium having a displacement layer, a disconnecting layer, and a recording layer that are stacked in this order. The displacement layer is defined by a perpendicular magnetic film that is relatively smaller in domain-wall coercivity and that is greater in domain-wall mobility than the recording layer and the disconnecting layer is defined by a magnetic layer that is lower in Curie temperature than the displacement layer and the recording layer. An optimum offset value is set for causing tracking of the optical head to a recording track provided on the magneto-optical storage medium.

摘要翻译： 光头用于向具有层叠的位移层，隔离层和记录层的磁光存储介质记录和重放信息。 位移层由畴壁矫顽力相对较小的垂直磁性膜定义，并且在畴壁迁移率方面比记录层更大，并且断开层由居里温度较低的磁性层限定 位移层和记录层。 设置最佳偏移值以使光头跟踪到设置在磁光存储介质上的记录轨道。

公开(公告)号：US06674702B2

公开(公告)日：2004-01-06

申请号：US10270448

申请日：2002-10-15

申请人： Akihiro Asada ,  Hideo Ohnuki ,  Masaaki Kurebayashi ,  Yasuhito Tanaka ,  Toshimitsu Kaku ,  Takashi Hoshino ,  Hidehiko Kando

发明人： Akihiro Asada ,  Hideo Ohnuki ,  Masaaki Kurebayashi ,  Yasuhito Tanaka ,  Toshimitsu Kaku ,  Takashi Hoshino ,  Hidehiko Kando

IPC分类号： G11B7125

CPC分类号： G11B7/126 ,  G11B7/0062 ,  G11B2007/0006

摘要： A laser drive circuit includes a first current supply unit which supplies a first drive current to a first laser diode based on a drive waveform signal generated by a drive waveform generating unit, a second current supply unit which supplies a second drive current to a second laser diode based on the drive waveform signal generated by the drive waveform generating unit, and a switching unit which selectively supplies the drive waveform signal generated by the drive waveform generating unit to one of the first current supply unit and the second current supply unit. The drive waveform generating unit may be part of the laser drive circuit, or may be separate from the laser drive circuit, and may include a drive waveform information storage unit which stores a recording strategy according to a type of disk.

摘要翻译： 激光驱动电路包括：第一电流供应单元，其基于由驱动波形发生单元产生的驱动波形信号向第一激光二极管提供第一驱动电流;第二电流供应单元，其将第二驱动电流提供给第二激光器 基于由驱动波形生成单元生成的驱动波形信号的二极管，以及切换单元，其选择性地将驱动波形生成单元生成的驱动波形信号提供给第一电流供给单元和第二电流供给单元中的一个。 驱动波形生成单元可以是激光驱动电路的一部分，也可以与激光驱动电路分离，并且可以包括驱动波形信息存储单元，其存储根据盘的类型的记录策略。

公开(公告)号：US06638597B1

公开(公告)日：2003-10-28

申请号：US09697473

申请日：2000-10-26

申请人： Masataka Shinoda ,  Yasuhito Tanaka ,  Takashi Shimouma

发明人： Masataka Shinoda ,  Yasuhito Tanaka ,  Takashi Shimouma

IPC分类号： G11B11105

CPC分类号： G11B11/10582 ,  G11B11/10515 ,  G11B11/10584 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/31

摘要： In order to improve reproduction characteristics of a magneto-optical recording medium in a case of being subject to a magnetically induced super resolution readout process utilizing a blue-violet laser beam, there is provided a magneto-optical recording medium having a surface roughness of 0.3 nm or less on a surface of a substrate on which recording/reproduction magnetic layers are formed or a surface of a dielectric film formed on the substrate.

摘要翻译： 为了提高使用蓝紫色激光束的磁感应超分辨率读出处理的情况下提高磁光记录介质的再现特性，提供了表面粗糙度为0.3的磁光记录介质 在形成有记录/再现磁性层的基板的表面上或者在基板上形成的电介质膜的表面上。

公开(公告)号：US6093991A

公开(公告)日：2000-07-25

申请号：US10124

申请日：1998-01-21

申请人： Yasuhito Tanaka

发明人： Yasuhito Tanaka

IPC分类号： F02B63/04 ,  F16D41/06 ,  F16D41/067 ,  H02K7/10 ,  H02K7/18 ,  F16D3/34

CPC分类号： F16D41/067 ,  H02K7/10

摘要： An alternator pulley includes a driving member driven and rotated via a belt from an output shaft of an engine. A driving member is disposed on an inner surface of the driving member and a one-way clutch is interposed between the driving and driven member. The one-way clutch includes rollers capable of rolling in a locked side direction along which a rotating power of the driving member is transmitted to the driven member or a free side direction along which the rotating powder is interrupted. Depending on a relative speed difference between the driving member and the driven member, the rollers are biased for pressing in the locked side direction and a torque value of the pressing is set preferably to less than 4 Nm.

摘要翻译： 交流发电机滑轮包括从发动机的输出轴通过皮带驱动和旋转的驱动部件。 驱动构件设置在驱动构件的内表面上，并且单向离合器插入在驱动构件和被驱动构件之间。 单向离合器包括能够沿着驱动构件的旋转动力被传递到从动构件的锁定侧方向滚动的滚筒或者旋转粉末被中断的自由侧方向。 根据驱动构件和从动构件之间的相对速度差，辊被偏压以在锁定侧方向上按压，并且按压的扭矩值优选设定为小于4Nm。

公开(公告)号：US4523011A

公开(公告)日：1985-06-11

申请号：US594303

申请日：1984-03-28

申请人： Tsutomu Katakami ,  Nobuyuki Fukazawa ,  Hajime Iizuka ,  Takashi Nishina ,  Joji Kamiya ,  Yasuhito Tanaka ,  Takuo Nakano

发明人： Tsutomu Katakami ,  Nobuyuki Fukazawa ,  Hajime Iizuka ,  Takashi Nishina ,  Joji Kamiya ,  Yasuhito Tanaka ,  Takuo Nakano

IPC分类号： A61K31/50 ,  A61P7/02 ,  A61P9/12 ,  C07D237/04 ,  C07D401/12 ,  C07D403/12

CPC分类号： C07D401/12 ,  C07D237/04 ,  C07D403/12

摘要： 6-(Substituted phenyl)-4,5-dihydro-3(2H)-pyridazinone compounds possessing strong platelet aggregation inhibiting activity and blood pressure depressing activity, having the general formula: ##STR1## wherein R.sup.1 is hydrogen or lower alkyl; R.sup.2 is hydrogen, lower alkyl, lower alkylthio or the grouping R.sup.5 --NH-- where R.sup.5 is lower alkyl; R.sup.3 is phenyl, pyridyl, benzyl, lower alkyl or a substituted phenyl group carrying at any desired position on the benzene ring thereof the grouping: ##STR2## where R.sup.1 has the same meaning as given above; R.sup.4 is hydrogen or halogen; n is 0 or 1; and when both R.sup.2 and R.sup.3 are lower alkyl groups, R.sup.2 and R.sup.3 may be combined together with the bridging member ##STR3## between them to form the structure: ##STR4## where m is 2 or 3, as well as physiologically acceptable acid-addition salts thereof, and processes for preparing them.

公开(公告)号：US20140302082A1

公开(公告)日：2014-10-09

申请号：US14009049

申请日：2012-03-30

申请人： Takaji Wakita ,  Tomoko Date ,  Yasuhito Tanaka ,  Masashi Mizokami

发明人： Takaji Wakita ,  Tomoko Date ,  Yasuhito Tanaka ,  Masashi Mizokami

IPC分类号： C12N7/00 ,  C12Q1/70 ,  C07K16/08

CPC分类号： C12N7/00 ,  A61K39/00 ,  A61K39/12 ,  C07K14/005 ,  C07K16/082 ,  C07K16/109 ,  C12N15/86 ,  C12N2770/24221 ,  C12N2770/24222 ,  C12N2770/24231 ,  C12N2770/24234 ,  C12N2770/24243 ,  C12N2770/24251 ,  C12Q1/707 ,  C12Q2600/136 ,  C12Q2600/156

摘要： A subgenomic replicon RNA (nucleic acid) having an excellent autonomously replicating ability and a fullgenomic replicon RNA (nucleic acid) having an excellent autonomously replicating ability and infectious HCV particle-producing ability, each derived from a novel HCV of genotype 1b, are provided. Particularly, a subgenomic replicon RNA (nucleic acid) and a fullgenomic replicon RNA (nucleic acid), each derived from an HCV genome of the NC1 strain which is a novel HCV genotype 1b isolated from a patient with acute severe hepatitis C, are provided.

摘要翻译： 提供了具有优异的自主复制能力的亚基因组复制子RNA（核酸）和具有优异的自主复制能力和感染性HCV颗粒产生能力的全基因组复制子RNA（核酸），各自源自基因型1b的新型HCV。 特别地，提供了从NC1菌株的HCV基因组衍生的亚基因组复制子RNA（核酸）和全基因组复制子RNA（核酸），其是从急性重症丙型肝炎患者分离的新型HCV基因型1b。