公开(公告)号：US06687195B2

公开(公告)日：2004-02-03

申请号：US10014311

申请日：2001-12-11

申请人： Shintaro Miyanishi ,  Kunio Kojima ,  Hiroyuki Katayama ,  Hiroshi Fuji

发明人： Shintaro Miyanishi ,  Kunio Kojima ,  Hiroyuki Katayama ,  Hiroshi Fuji

IPC分类号： G11B1100

CPC分类号： G11B5/488 ,  G11B5/127 ,  G11B5/17 ,  G11B5/29 ,  G11B5/3103 ,  G11B13/045 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A light emitting device for focusing a laser beam without adopting an optical lens system is provided, as well as a composite magnetic recording head and a magnetic recording device, which realize a smaller laser spot diameter and a sharp magnetic field distribution, whereby an optical-assisted high density magnetic recording can be realized, and which also realize a simplified head structure, and improvements in productivity and costs. The composite magnetic recording head is prepared by integrally forming a magnetic coil layer for use in magnetic recording at around the center of the surface-emitting laser aperture, and further, a shielding plate is formed at the center of the laser aperture. As a result, a laser beam can be focused on the irradiation surface of the magnetic recording medium at portion right below the shielding member so as to locally heat the irradiated portion, and further a magnetic field for magnetic recording is applied in the laser heated portion, thereby realizing a high density magnetic recording.

摘要翻译： 提供了一种不采用光学透镜系统来聚焦激光束的发光装置，以及实现较小的激光光斑直径和尖锐的磁场分布的复合磁记录头和磁记录装置， 可以实现辅助的高密度磁记录，并且还实现了简化的头部结构，并且提高了生产率和成本。 复合磁记录头通过在表面发射激光器孔的中心周围整体地形成用于磁记录的磁性线圈层，并且还在激光孔的中心形成遮蔽板。 结果，可以将激光束聚焦在屏蔽部件正下方的部分的磁记录介质的照射表面上，以便局部加热照射部分，并且在激光加热部分中进一步施加用于磁记录的磁场 ，从而实现高密度磁记录。

公开(公告)号：US06586065B1

公开(公告)日：2003-07-01

申请号：US09319043

申请日：1999-06-01

申请人： Hiroyuki Katayama ,  Yasushi Ishihama

发明人： Hiroyuki Katayama ,  Yasushi Ishihama

IPC分类号： G01N2726

CPC分类号： G01N27/44704 ,  Y10T428/1321 ,  Y10T428/139 ,  Y10T428/31536

摘要： It is to provide a capillary having adsorbed a polymer. A capillary having absorbed on an inner wall of the capillary, an ionic polymer having positive electric charge and an ionic polymer having negative electric charge alternately, and a process for producing the same.

摘要翻译： 本发明提供吸附了聚合物的毛细管。毛细管吸收在毛细管内壁上的毛细管，具有正电荷的离子聚合物和交替负电荷的离子聚合物及其制造方法。

公开(公告)号：US06483653B1

公开(公告)日：2002-11-19

申请号：US09441704

申请日：1999-11-16

申请人： Hiroyuki Katayama ,  Shinzo Sawamura

发明人： Hiroyuki Katayama ,  Shinzo Sawamura

IPC分类号： G11B502

CPC分类号： G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10586 ,  G11B13/045 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A magnetic layer includes a first magnetic film and a second magnetic film which are coupled to each other by means of exchanged coupling of magnetic materials, and one of the magnetic films is made of a ferrimagnetic material having a magnetic compensation temperature. When information is reproduced by heating a magnetic reproducing track portion to a magnetically reproducible temperature by a light beam, the magnetization directions of the two magnetic films are opposite in a peripheral track portion having approximately room temperature, and the same in the magnetic reproducing track portion heated to the magnetically reproducible temperature. Consequently, crosstalk from the peripheral track portion is reduced, and a reproducing signal from the magnetic reproducing track portion is increased, thereby improving the S/N of the reproducing signal significantly. Consequently, it has become possible to provide a magnetic recording medium which can realize high-density recording and reproducing with less crosstalk while producing a reproducing signal with excellent S/N.

摘要翻译： 磁性层包括通过磁性材料的交换耦合彼此耦合的第一磁性膜和第二磁性膜，并且一个磁性膜由具有磁补偿温度的铁氧体材料制成。 当利用光束将磁再现轨迹部分加热到可磁再现的温度来再现信息时，两个磁性膜的磁化方向在具有近似室温的周边轨道部分相反，并且在磁再现轨迹部分 加热至可再现的磁性温度。 因此，来自周边磁道部分的串扰减少，并且来自磁再现磁道部分的再现信号增加，从而显着提高了再现信号的S / N。 因此，可以提供一种可以在产生具有优异S / N的再现信号的同时实现具有较少串扰的高密度记录和再现的磁记录介质。

公开(公告)号：US06389686B1

公开(公告)日：2002-05-21

申请号：US09726328

申请日：2000-12-01

申请人： Yasuhito Takahashi ,  Yasunaga Kurokawa ,  Kenji Iida ,  Masaru Sumi ,  Yuichiro Ohta ,  Toshiro Katsube ,  Kazuo Nakano ,  Norikazu Ozaki ,  Hiroyuki Katayama

发明人： Yasuhito Takahashi ,  Yasunaga Kurokawa ,  Kenji Iida ,  Masaru Sumi ,  Yuichiro Ohta ,  Toshiro Katsube ,  Kazuo Nakano ,  Norikazu Ozaki ,  Hiroyuki Katayama

IPC分类号： H05K336

摘要： A process for fabricating thin multi-layer circuit boards. A substrate is disposed over a heat-accumulating block adjacent thereto so that it is uniformly heated from the back side thereof during the pre-baking.

公开(公告)号：US06333827B1

公开(公告)日：2001-12-25

申请号：US09596572

申请日：2000-06-16

申请人： Masaki Hamamoto ,  Kunio Kojima ,  Hiroyuki Katayama ,  Shinzo Sawamura ,  Junichi Sato

发明人： Masaki Hamamoto ,  Kunio Kojima ,  Hiroyuki Katayama ,  Shinzo Sawamura ,  Junichi Sato

IPC分类号： G11B502

CPC分类号： G11B5/00 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021

摘要： The present invention is a magnetic signal reproducing device for reproducing information from a magnetic recording medium in which a polarity of magnetization is inverted at a first temperature during temperature change. The device includes local temperature raising device for locally raising the temperature of the magnetic recording medium, and reproducing device for magnetically detecting information recorded on the magnetic recording medium. In the device, during a reproducing operation, the local temperature raising device forms an area having a lower temperature than the first temperature and an area having a higher temperature than the first temperature within an area in the magnetic recording medium, thereby reducing contribution to reproduced signal from magnetization of an area other than a reproduction target area.

摘要翻译： 本发明是一种用于从磁记录介质再现信息的磁信号再现装置，其中磁化极性在温度变化时在第一温度下反转。 该装置包括用于局部提高磁记录介质的温度的本地升温装置和用于磁记录在磁记录介质上的信息的再现装置。 在该装置中，在再现操作期间，局部升温装置形成具有比第一温度低的温度的区域和具有比磁记录介质中的区域内的第一温度更高的温度的区域，从而减少对再现的贡献 来自再生目标区域以外的区域的磁化的信号。

公开(公告)号：US5989671A

公开(公告)日：1999-11-23

申请号：US879916

申请日：1997-06-20

申请人： Junichiro Nakayama ,  Hiroyuki Katayama ,  Akira Takahashi ,  Kenji Ohta ,  Kazuo Van

发明人： Junichiro Nakayama ,  Hiroyuki Katayama ,  Akira Takahashi ,  Kenji Ohta ,  Kazuo Van

IPC分类号： G11B5/00 ,  G11B7/003 ,  G11B7/004 ,  G11B7/007 ,  G11B7/24 ,  G11B7/26 ,  G11B11/105 ,  G11B13/00 ,  G11B13/04 ,  G11B20/00 ,  G11B23/28 ,  G11B5/60

CPC分类号： G11B23/281 ,  G11B11/10582 ,  G11B13/00 ,  G11B13/04 ,  G11B13/045 ,  G11B23/28 ,  G11B5/00 ,  G11B7/0031 ,  G11B7/24 ,  G11B7/26 ,  G11B11/10502 ,  G11B20/00086 ,  G11B7/004 ,  G11B7/007 ,  Y10S428/90 ,  Y10T428/265

摘要： An optical tape including an optical recording layer for permitting information to be optically recorded thereon and a light-reflective magnetic layer. The light-reflective magnetic layer which reflects light projected onto the recording layer, also permits magnetic recording or magneto-optical recording to be performed thereon, thereby increasing a storage capacity of the optical tape remarkably. Further, the optical tape is provided with a layer to form guiding grooves for tracking control. The layer to form guiding grooves is made up of ultraviolet-hardening resin, photo-resist, or a photochromic material. For example, in the case of using ultraviolet-hardening resin, after a guiding groove pattern has been exposed by projecting an ultraviolet ray on a layer made up of ultraviolet-hardening resin, the exposed areas harden to form areas corresponding to guiding grooves between those exposed areas. The guiding grooves are formed by removing the areas corresponding to guiding grooves from the layer made up of the ultraviolet-hardening resin. Additionally, along with a guiding groove pattern, an index pattern can also be exposed. The guiding grooves thus formed do not reduce the recording density for information of the optical tape.

摘要翻译： 一种光学带，包括用于允许光学记录信息的光学记录层和光反射性磁性层。 反射投影到记录层上的光的光反射性磁性层也可以在其上进行磁记录或磁光记录，从而显着提高光带的存储容量。 此外，光带设置有一层以形成用于跟踪控制的引导槽。 形成导向槽的层由紫外线硬化树脂，光致抗蚀剂或光致变色材料构成。 例如，在使用紫外线硬化树脂的情况下，通过在由紫外线固化型树脂构成的层上投射紫外线而引导槽图案露出后，露出的区域变硬，形成与引导槽对应的区域 暴露地区。 通过从由紫外线固化树脂构成的层去除与导向槽相对应的区域来形成引导槽。 另外，与引导槽图案一样，还可以暴露索引图案。 如此形成的引导槽不会降低用于光带的信息的记录密度。

公开(公告)号：US5863649A

公开(公告)日：1999-01-26

申请号：US928894

申请日：1997-09-12

申请人： Junji Hirokane ,  Hiroyuki Katayama ,  Akira Takahashi ,  Kenji Ohta

发明人： Junji Hirokane ,  Hiroyuki Katayama ,  Akira Takahashi ,  Kenji Ohta

IPC分类号： G11B11/10 ,  C09D5/23 ,  G11B11/105 ,  G11B5/66 ,  B32B15/01 ,  G11B11/00

CPC分类号： G11B11/10504 ,  G11B11/10515 ,  G11B11/10586 ,  G11B11/10595 ,  G11B11/10589 ,  Y10T428/26

摘要： In a magneto-optical recording medium including a reading-out layer, which is in an in-plane magnetization state at a room temperature and in a perpendicular magnetization state when the temperature rises, and a recording layer, which is in a perpendicular magnetization state at a room temperature to a Curie point, an intermediate layer having in-plane magnetization component and a lower Curie point than the recording medium is formed between the reading-out layer and the recording layer so as to abruptly change magnetization state of the reading-out layer. Since magnetization state of the reading-out layer is abruptly changed, recording is carried out highdensely. Moreover, since exchange-coupling between the reading-out layer and the recording layer is controlled, a recording characteristic is improved.

摘要翻译： 在包括读出层的磁光记录介质中，当温度升高时，其在室温下处于平面内的磁化状态，并且在垂直磁化状态下处于垂直磁化状态的记录层 在室温至居里点时，在读出层和记录层之间形成具有面内磁化分量和比记录介质低的居里点的中间层，从而突然改变读出层的磁化状态， 外层。 由于读出层的磁化状态突然变化，所以高度地进行记录。 此外，由于读出层和记录层之间的交换耦合被控制，所以提高了记录特性。

公开(公告)号：US5707727A

公开(公告)日：1998-01-13

申请号：US395165

申请日：1995-02-27

申请人： Akira Takahashi ,  Yoshiteru Murakami ,  Junsaku Nakajima ,  Kenji Ohta ,  Junichiro Nakayama ,  Hiroyuki Katayama ,  Michinobu Mieda

发明人： Akira Takahashi ,  Yoshiteru Murakami ,  Junsaku Nakajima ,  Kenji Ohta ,  Junichiro Nakayama ,  Hiroyuki Katayama ,  Michinobu Mieda

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B5/66 ,  B32B5/16 ,  G11B5/02 ,  G11B11/00

CPC分类号： G11B11/10593 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10517 ,  G11B11/10586 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

摘要： A magneto-optical recording medium has a recording layer whereon information is magneto-optically recorded. A readout layer is provided on the recording layer. The readout layer has a compensating temperature that is located between room temperature and the Curie temperature. In the readout layer, upon an application of a light beam, the in-plane magnetization occurs at room temperature and a transition from the in-plane magnetization to vertical magnetization occurs as the temperature of the irradiated area of the readout layer rises above a predetermined temperature. By employing this magneto-optical recording medium, with an application of a light beam that is intensity modulated into two levels, only a spot having a temperature not less than a predetermined temperature is involved in the reproduction; therefore, a recorded bit with a size smaller than the diameter of the light beam can be reproduced, thereby greatly increasing the recording density. Further, the level of the reproduced signals is increased, and crosstalk from the adjoining tracks is reduced; thus, information recording and overwriting can be conducted more easily.

摘要翻译： 磁光记录介质具有磁信息记录信息的记录层。 读出层设置在记录层上。 读出层具有位于室温和居里温度之间的补偿温度。 在读出层中，在施加光束时，在室温下发生平面内磁化，并且随着读出层的照射区域的温度上升到预定值以上，从面内磁化向垂直磁化的转变发生 温度。 通过采用该磁光记录介质，通过施加强度调制为两个级别的光束，只有具有不低于预定温度的温度的点参与再现; 因此，可以再现具有小于光束直径的尺寸的记录位，从而大大提高记录密度。 此外，再现信号的电平增加，并且来自相邻轨道的串扰减小; 因此，可以更容易地进行信息记录和重写。

公开(公告)号：US5680376A

公开(公告)日：1997-10-21

申请号：US648899

申请日：1996-05-16

申请人： Hiroyuki Katayama ,  Junji Hirokane ,  Akira Takahashi ,  Kenji Ohta

发明人： Hiroyuki Katayama ,  Junji Hirokane ,  Akira Takahashi ,  Kenji Ohta

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/14 ,  G11B20/12 ,  G11B20/18 ,  G11B27/10 ,  G11B27/30

CPC分类号： G11B7/00745 ,  G11B27/105 ,  G11B27/3027 ,  G11B7/013 ,  G11B7/14

摘要： In an optical disk, since a header section has only one recording section for address information, the capacity of memory where a user can freely record data is increased. In an optical disk drive, four laser beams have a fixed positional relation. Based on the address information of a header section read out by at least one of the laser beams and the positional relation among the laser beams, the address information of tracks being scanned by the other laser beams is obtained. It is therefore possible to accurately record or reproduce information on the optical disk.

摘要翻译： 在光盘中，由于报头部分仅具有一个用于地址信息的记录部分，所以用户可以自由记录数据的存储器的容量增加。 在光盘驱动器中，四个激光束具有固定的位置关系。 基于通过至少一个激光束读出的标题部分的地址信息和激光束之间的位置关系，获得由其他激光束扫描的轨道的地址信息。 因此，可以准确地在光盘上记录或再现信息。

公开(公告)号：US5679268A

公开(公告)日：1997-10-21

申请号：US359448

申请日：1994-12-20

申请人： Yasuhito Takahashi ,  Yasunaga Kurokawa ,  Kenji Iida ,  Masaru Sumi ,  Yuichiro Ohta ,  Toshiro Katsube ,  Kazuo Nakano ,  Norikazu Ozaki ,  Hiroyuki Katayama

发明人： Yasuhito Takahashi ,  Yasunaga Kurokawa ,  Kenji Iida ,  Masaru Sumi ,  Yuichiro Ohta ,  Toshiro Katsube ,  Kazuo Nakano ,  Norikazu Ozaki ,  Hiroyuki Katayama

IPC分类号： G03F7/38 ,  H05K1/00 ,  H05K3/02 ,  H05K3/04 ,  H05K3/06 ,  H05K3/10 ,  H05K3/24 ,  H05K3/28 ,  H05K3/38 ,  H05K3/46 ,  H05H3/00

CPC分类号： H05K3/4644 ,  H05K1/0293 ,  H05K3/243 ,  H05K2201/09736 ,  H05K2203/107 ,  H05K2203/175 ,  H05K3/027 ,  H05K3/048 ,  H05K3/064 ,  H05K3/108 ,  H05K3/28 ,  H05K3/388 ,  Y10T29/4902 ,  Y10T29/49117 ,  Y10T29/49126 ,  Y10T29/4913 ,  Y10T29/49144

摘要： A process for fabricating thin multi-layer circuit boards which allow the electrical conduction of remodeling pads to be easily cut do not use etching for gold, avoid the lift-off method for forming a thin chromium film on the wiring pattern layer, allow a defective wiring pattern layer to be removed, and which uses uniform heating of the substrate, from the back side thereof, at the time of pre-baking. A barrier metal (60) is excluded from a portion where the electrical conduction of a remodeling pad (62b) is to be cut (FIGS. 1 to 16). Alternatively, gold-plating resist is formed in order to avoid the etching for gold (FIGS. 17 to 19). Alternatively, a thin chromium film is formed in advance by etching on the wiring pattern layer (FIGS. 27 to 33). Alternatively, a metallic barrier film (122) is formed on each of the wiring pattern layers so that the wiring pattern layer can be removed without affecting other wiring pattern layers (FIGS. 36 to 42). Alternatively, the substrate is disposed over a heat-accumulating block (138) adjacent thereto so that it is uniformly heated from the back side thereof during the pre-baking.

摘要翻译： 用于制造允许重塑垫的导电容易切割的薄多层电路板的方法不使用金蚀刻，避免在布线图案层上形成薄铬膜的剥离方法，允许有缺陷的 在预烘烤时从其背面使用要去除的布线图案层，并且其使用均匀的基板加热。 阻挡金属（60）从重塑垫（62b）的导电被切割的部分排除（图1至图16）。 或者，为了避免金的蚀刻，形成镀金光刻胶（图17〜图19）。 或者，通过在布线图案层上的蚀刻预先形成薄的铬膜（图27至33）。 或者，在每个布线图案层上形成金属阻挡膜（122），使得可以去除布线图案层而不影响其它布线图案层（图36至42）。 或者，将基板设置在与其相邻的蓄热块（138）上，使其在预烘烤期间从其后侧均匀地加热。