专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US07586824B2 Optical storage medium, optical read/write apparatus, and optical read/write method 有权
公开(公告)号：US07586824B2
公开(公告)日：2009-09-08
申请号：US11701942
申请日：2007-02-02
申请人： Junji Hirokane , Noboru Iwata
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G11B7/20
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/00454 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/1267 , G11B7/24 , G11B7/24038 , G11B7/263 , G11B20/00086 , G11B20/00195 , G11B20/0021 , G11B20/00253 , G11B2007/0013
摘要： An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

52. 发明申请

US20070133378A1 Optical storage medium, optical read/write apparatus, and optical read/write method 有权
公开(公告)号：US20070133378A1
公开(公告)日：2007-06-14
申请号：US11702820
申请日：2007-02-06
申请人： Junji Hirokane , Noboru Iwata
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G11B7/24
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/00454 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/1267 , G11B7/24 , G11B7/24038 , G11B7/263 , G11B20/00086 , G11B20/00195 , G11B20/0021 , G11B20/00253 , G11B2007/0013
摘要： An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.

53. 发明授权

US07223505B2 Method for forming micropatterns 有权
标题翻译：形成微图案的方法
公开(公告)号：US07223505B2
公开(公告)日：2007-05-29
申请号：US11054244
申请日：2005-02-08
申请人： Junji Hirokane , Michinobu Mieda , Go Mori
发明人： Junji Hirokane , Michinobu Mieda , Go Mori
IPC分类号： G03C5/00 , G01D9/00
CPC分类号： G11B7/261 , G11B7/263 , Y10S430/146
摘要： A method for forming micropatterns includes forming a thin film consisting of a single layer or of plural layers on a substrate, irradiating an energy beam to the thin film to elevate the temperature of a region to a predetermined temperature or higher to thereby modify the region of the thin film, and patterning the thin film at least in such a manner to leave over the modified region.
摘要翻译：用于形成微图案的方法包括在基板上形成由单层或多层构成的薄膜，向薄膜照射能量束以将区域的温度升高到预定温度或更高，从而改变并且至少以这样的方式使薄膜图案化以离开改质区域。

54. 发明授权

US07180849B2 Optical storage medium enabling uniform light transmittance, optical read/write apparatus for same, and optical read/write method for same 有权
标题翻译：具有均匀透光率的光学存储介质，用于其的光学读/写装置，以及用于其的光学读/写方法
公开(公告)号：US07180849B2
公开(公告)日：2007-02-20
申请号：US10142488
申请日：2002-05-10
申请人： Junji Hirokane , Noboru Iwata
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G21B7/24
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/00454 , G11B7/007 , G11B7/00718 , G11B7/00745 , G11B7/1267 , G11B7/24 , G11B7/24038 , G11B7/263 , G11B20/00086 , G11B20/00195 , G11B20/0021 , G11B20/00253 , G11B2007/0013
摘要： An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area.
摘要翻译：光学读/写装置使得来自照明装置的读/写光束仅对包括堆叠的数据存储层的光存储介质的一侧进行打印，每个存储层与其它层分开地可读/写。在这种情况下，光学读/写装置的操作使得在完全记录第一数据存储层的可记录区域之后，数据从/向第二数据存储层进行读/写。因此，即使在可记录区域中的第一数据存储层的透光率可以变化的条件下，也可以在第二数据存储层的大致整个可记录区域上照射光，而不使用复杂的读/写系统取决于任何数据是否记录在可记录区域。

55. 发明授权

US06949302B2 Magneto-optical recording medium having a reproducing layer composed to control movement of domain walls therein 失效
标题翻译：磁光记录介质具有重构层，用于控制畴壁的移动
公开(公告)号：US06949302B2
公开(公告)日：2005-09-27
申请号：US09990428
申请日：2001-11-21
申请人： Noboru Iwata , Junji Hirokane
发明人： Noboru Iwata , Junji Hirokane
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593 , G11B11/10595 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium includes at least a first magnetic layer, a second magnetic layer and a third magnetic layer which are layered in this order, the first magnetic layer being formed of a perpendicularly magnetized film having a relatively small wall coercivity and a relatively large wall mobility compared with the third magnetic layer in the vicinity of a predetermined temperature, and the magneto-optical recording medium satisfies conditions Tc2
摘要翻译：磁光记录介质至少包括依次层叠的第一磁性层，第二磁性层和第三磁性层，第一磁性层由具有相对小的壁矫顽力的垂直磁化膜形成，在与预定温度附近的第三磁性层相比，具有大的壁迁移率，并且磁光记录介质满足条件<？in-line-formula description =“In-line formula”end =“lead”>> Tc 2 <？in-line-formula description =“In-line Formulas”end =“lead”？ > Tc 2 其中Tcomp 1是第一磁性层的补偿温度，Tc 1，Tc 2和 Tc 3分别是第一，第二和第三磁性层的居里温度。

56. 发明授权

US06762989B2 Optical disk having groove address pits and land address pits of equal depths 失效
标题翻译：光盘具有凹槽地址坑和相等深度的地址坑
公开(公告)号：US06762989B2
公开(公告)日：2004-07-13
申请号：US10280316
申请日：2002-10-25
申请人： Junji Hirokane , Noboru Iwata
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G11B724
CPC分类号： G11B7/24085 , G11B7/00718 , G11B7/00745 , G11B7/261
摘要： An optical recording medium includes a substrate having groove and land areas, in which address pits having substantially the same depth and which are formed deeper than the groove area are provided. By thus forming the address pits deeper than the groove area, address information can be reproduced accurately, and the optical recording medium can readily be manufactured by making the address pits which are respectively formed in the groove and land areas to have substantially the same depth.
摘要翻译：光学记录介质包括具有槽和焊盘区域的基板，其中具有基本相同深度的地址坑形成在凹槽区域的深度。通过这样形成比沟槽区域更深的地址坑，可以精确地再现地址信息，并且可以通过使分别形成在沟槽区域中的地址坑具有基本上相同的深度来容易地制造光学记录介质。

57. 发明授权

US06690625B2 Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US06690625B2
公开(公告)日：2004-02-10
申请号：US10132837
申请日：2002-04-25
申请人： Junji Hirokane , Noboru Iwata
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G11B1100
CPC分类号： G11B11/10593 , G11B11/10584 , G11B11/10591
摘要： A magneto-optical recording medium is provided with at least: a recording layer, made of a perpendicular magnetization film, in which magnetized information is recorded in the form of a perpendicular direction of magnetization; a magnetic flux generating layer, made of a perpendicular magnetization film, which is exchange-coupled with the recording layer; and a read-out layer, having a perpendicular magnetization at a predetermined temperature or higher temperatures than the predetermined temperature, which copies the magnetized information of the recording layer by magneto-static coupling with the magnetic flux generating layer and the recording layer, wherein the magnetic flux generating layer is a magnetic film having a lower Curie temperature than that of the recording layer and having a larger total magnetization than that of the recording layer at a temperature at which the read-out layer has a perpendicular magnetization.
摘要翻译：磁光记录介质至少设有：由垂直磁化膜制成的记录层，其中磁化信息以垂直磁化方向的形式被记录; 由与记录层交换耦合的垂直磁化膜制成的磁通量产生层; 以及读出层，其具有在比预定温度高的预定温度或更高温度的垂直磁化，其通过与磁通量产生层和记录层的磁静耦合来复制记录层的磁化信息，其中磁通量产生层是具有比记录层低的居里温度的磁性膜，并且在读出层具有垂直磁化的温度下具有比记录层更高的总磁化强度的磁性膜。

58. 发明授权

US06665235B2 Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium 失效
标题翻译：磁光记录介质以及用于磁光记录介质的记录和再现方法和光头
公开(公告)号：US06665235B2
公开(公告)日：2003-12-16
申请号：US10214881
申请日：2002-08-08
申请人： Yoshiteru Murakami , Junji Hirokane , Junichiro Nakayama , Junsaku Nakajima , Akira Takahashi , Kenji Ohta , Naoyasu Iketani
发明人： Yoshiteru Murakami , Junji Hirokane , Junichiro Nakayama , Junsaku Nakajima , Akira Takahashi , Kenji Ohta , Naoyasu Iketani
IPC分类号： G11B1100
CPC分类号： G11B11/10586 , B60T1/005 , F16D63/00 , G11B7/00718 , G11B7/126 , G11B11/10506 , G11B11/10515 , G11B11/10517 , G11B11/10543 , G11B11/10595
摘要： Featured is a recording and reproducing method of a magneto-optical recording medium including a recording layer for recording thereon information magneto-optically and a readout layer which has in-plane magnetization at room temperature and where a transition occurs from in-plane magnetization to perpendicular magnetization as temperature raises. The method includes projecting a light beam onto such a magneto-optical recording medium so as to form a perpendicularly magnetized area in the readout layer by duplication of the magnetization of said recording layer to the area. In further embodiments, the recording medium further includes an intermediate layer made of non-magnetic film formed between the readout and recording layers and the readout and recording layers are composed of rare-earth transition metal alloys such as TbFeCo (recoding layer) readout layer, made of GdFeCo (readout layer).
摘要翻译：特别是磁光记录介质的记录和再现方法，其包括用于在其上记录磁光信息的记录层和在室温下具有面内磁化的读出层，并且其中从面内磁化转变为垂直磁化随温度升高。该方法包括将光束投影到这种磁光记录介质上，以便通过将所述记录层的磁化复制到该区域而在读出层中形成垂直磁化区域。在另外的实施例中，记录介质还包括由读出和记录层之间形成的非磁性膜制成的中间层，并且读出和记录层由稀土过渡金属合金如TbFeCo（记录层）读出层，由GdFeCo（读出层）制成。

59. 发明授权

US06483785B1 Magneto-optical recording method using the relation of beam diameter and an aperture of converging lens 失效
标题翻译：使用光束直径与会聚透镜孔径的磁光记录方法
公开(公告)号：US06483785B1
公开(公告)日：2002-11-19
申请号：US09685829
申请日：2000-10-10
申请人： Yoshiteru Murakami , Junji Hirokane , Junichiro Nakayama , Junsaku Nakajima , Akira Takahashi , Kenji Ohta , Naoyasu Iketani
发明人： Yoshiteru Murakami , Junji Hirokane , Junichiro Nakayama , Junsaku Nakajima , Akira Takahashi , Kenji Ohta , Naoyasu Iketani
IPC分类号： G11B1100
CPC分类号： G11B7/126 , G11B7/00718 , G11B11/10506 , G11B11/10515 , G11B11/10517 , G11B11/10543 , G11B11/10584 , G11B11/10586 , G11B11/10595 , Y10S428/90
摘要： Featured is a recording and reproducing method for recording and reproducing information on and from a recording medium. The medium includes a base having a property that a light can be transmitted therethrough, a readout layer formed on the base, which has an in-plane magnetization at room temperature, whereas, a transition occurs from in-plane magnetization to perpendicular magnetization as temperature rises and a recording layer formed on said readout layer for recording thereon information magneto-optically. A groove for guiding a light beam is formed on a readout layer side of the base and a groove width is set substantially equal to a land width formed between grooves. The recording layer on the grooves and the recording layer on lands are used in recording and reproducing information. Further a light beam is incident on a converging lens of an optical head, the light beam having a larger diameter &ohgr; than an aperture &agr; of the converging lens for converging the light beam on a predetermined position of the magneto-optical recording medium.
摘要翻译：特色是用于在记录介质上记录和再现信息的记录和再现方法。该介质包括具有光可以透射的性质的基底，形成在基底上的读出层，其在室温下具有面内磁化强度，而从平面内磁化转变为垂直磁化转变为温度并且在所述读出层上形成用于在其上记录光学信息的记录层。在基板的读出层侧形成用于引导光束的槽，并且将槽宽度设定为与槽之间形成的焊盘宽度大致相等。凹槽上的记录层和焊盘上的记录层用于记录和再现信息。此外，光束入射到光学头的会聚透镜上，所述光束具有比会聚透镜的孔径α更大的直径Ω，用于将光束会聚在磁光记录介质的预定位置。

60. 发明授权

US06463016B1 Magneto-optical storage medium having in-plane magnetized layers 有权
标题翻译：具有平面内磁化层的磁光存储介质
公开(公告)号：US06463016B1
公开(公告)日：2002-10-08
申请号：US09493655
申请日：2000-01-28
申请人： Junji Hirokane , Noboru Iwata
发明人： Junji Hirokane , Noboru Iwata
IPC分类号： G11B1100
CPC分类号： G11B11/10593 , G11B11/10515 , G11B11/10584
摘要： A magneto-optical recording medium according to the present invention includes a reproducing layer having in-plane magnetization at room temperature and shifting to have perpendicular magnetization at temperatures at and above a critical temperature, a first in-plane magnetized layer having a Curie temperature in the vicinity of the critical temperature, a second in-plane magnetized layer having a Curie temperature higher than that of the first in-plane magnetized layer, and a recording layer made of a perpendicularly magnetized film, provided in that order.
摘要翻译：根据本发明的磁光记录介质包括在室温下具有面内磁化并在温度等于或高于临界温度时具有垂直磁化的再现层，具有居里温度的第一平面内磁化层临界温度附近，具有比第一面内磁化层的居里温度高的居里温度的第二面内磁化层，以及依次设置的垂直磁化膜制成的记录层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式