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1. 发明授权

US06674693B1 Recording method, reproducing method and recording and reproducing apparatus for magneto-optical recording medium 失效
标题翻译：用于磁光记录介质的记录方法，再现方法和记录和再现装置
公开(公告)号：US06674693B1
公开(公告)日：2004-01-06
申请号：US09506257
申请日：2000-02-17
申请人： Hiroyuki Awano , Yuji Yamazaki , Masaki Sekine
发明人： Hiroyuki Awano , Yuji Yamazaki , Masaki Sekine
IPC分类号： G11B1100
CPC分类号： G11B11/10534 , G11B7/1387 , G11B11/10515 , G11B11/10541 , G11B11/10554 , G11B11/10573 , G11B11/1058 , G11B11/10584 , G11B11/10595
摘要： While a magneto-optical recording medium is irradiated with a laser beam, the medium is rotated relative to the beam at a controlled speed in such a manner that a high temperature region of a heat spot produced on the basis of the light intensity distribution of the beam is formed outside the associated light spot. A magnetic field source includes a magnetic field generator which is narrow in the direction along the track of the medium. The field source is positioned with the field generator at the heat center outside the light spot to apply a narrow recording magnetic field to the high temperature region. This forms a recording magnetic domain in the high temperature region. The magnetic domain is rectangular and narrow in the direction along the track. Rectangular recording magnetic domains adjoining in the direction along the track hardly interfere with each other even if they are closely spaced. This results in high density recording.
摘要翻译：当用激光束照射磁光记录介质时，介质以受控的速度相对于光束转动，使得基于光束的光强度分布产生的热点的高温区域光束形成在相关联的光斑之外。磁场源包括在沿着介质轨道的方向上较窄的磁场发生器。场源将场发生器定位在光点外的热中心处，以将高记录磁场施加到高温区域。这在高温区域形成记录磁畴。磁畴在沿着轨道的方向上是矩形的和窄的。沿着轨道的方向邻接的矩形记录磁畴即使彼此紧密间隔也难以彼此干涉。这导致高密度记录。

2. 发明授权

US06477118B1 METHOD AND APPARATUS FOR RECORDING AND REPRODUCING INFORMATION BY APPLYING FIELD IN A DIRECTION OTHER THAN THE DIRECTION OF MAGNETIZATION OR THE DIRECTION TO A SURFACE OF AN INFORMATION RECORDING MEDIUM 失效
标题翻译：用于记录和再现信息的方法和装置以除磁化方向或方向到信息记录介质的表面之外的方向进行
公开(公告)号：US06477118B1
公开(公告)日：2002-11-05
申请号：US09449765
申请日：1999-11-26
申请人： Hiroyuki Awano , Masaki Sekine , Manabu Tani , Masafumi Yoshihiro , Hiroshi Ido
发明人： Hiroyuki Awano , Masaki Sekine , Manabu Tani , Masafumi Yoshihiro , Hiroshi Ido
IPC分类号： G11B1100
CPC分类号： G11B7/1387 , G11B11/1051 , G11B11/10515 , G11B11/10534 , G11B11/10543 , G11B11/10554 , G11B11/1058 , G11B11/10584 , G11B11/10591 , G11B2005/0021
摘要： Disclosed are a reproducing method and a reproducing apparatus capable of performing reproduction with a wide power margin, as well as a recording method and a recording apparatus preferably used for super high density recording. A recording and reproducing apparatus 101 principally comprises a magnetic field-applying unit, a laser beam-radiating section, and a signal processing system. A magnetic coil 29, which is provided for the magnetic field-applying unit, is arranged so that its axis of magnetic field generation 102 is oblique to a surface of an information-recording medium 100. A reproducing magnetic field is applied in an oblique direction to the surface of the information-recording medium 100 by using the magnetic coil 29 while radiating a reproducing light beam to the medium by using the laser beam-radiating section. Accordingly, the leak magnetic field in the in-plane direction from a recording magnetic domain in a recording layer is amplified. The inversion of magnetization in a reproducing layer tends to occur, and the reproducing power margin is widened. The recording and reproducing apparatus 101 is also capable of recording information. An extremely minute recording magnetic domain can be formed in the recording layer of the information-recording medium.
摘要翻译：公开了能够以大的功率余量进行再现的再现方法和再现装置，以及优选用于超高密度记录的记录方法和记录装置。记录和再现装置101主要包括磁场施加单元，激光束辐射部分和信号处理系统。设置用于磁场施加单元的磁线圈29被布置成使得其磁场产生轴102倾斜于信息记录介质100的表面。再现磁场沿倾斜方向通过使用电磁线圈29同时通过使用激光束辐射部分将再现光束照射到介质上而到信息记录介质100的表面。因此，记录层中记录磁畴的面内方向的泄漏磁场被放大。再现层中的磁化反转趋于发生，再现功率余量变大。记录和再现装置101还能够记录信息。可以在信息记录介质的记录层中形成极细的记录磁畴。

3. 发明授权

US06893746B1 Magnetic recording medium with high thermal stability, method for producing the same, and magnetic recording apparatus 失效
标题翻译：具有高热稳定性的磁记录介质，其制造方法和磁记录装置
公开(公告)号：US06893746B1
公开(公告)日：2005-05-17
申请号：US10111608
申请日：2000-10-30
申请人： Fumiyoshi Kirino , Norio Ohta , Kouichirou Wakabayashi , Teruaki Takeuchi , Harumi Hieida , Masaki Sekine , Hiroyuki Awano , Akira Yano , Satoshi Matsunuma , Nobuyuki Inaba , Tetsunori Koda
发明人： Fumiyoshi Kirino , Norio Ohta , Kouichirou Wakabayashi , Teruaki Takeuchi , Harumi Hieida , Masaki Sekine , Hiroyuki Awano , Akira Yano , Satoshi Matsunuma , Nobuyuki Inaba , Tetsunori Koda
IPC分类号： G11B5/00 , G11B5/64 , G11B5/66 , G11B5/74 , G11B5/82 , G11B5/70 , G11B11/105
CPC分类号： G11B5/65 , G11B5/00 , G11B5/656 , G11B5/66 , G11B5/667 , G11B5/7325 , G11B5/74 , G11B5/82 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording medium comprises an information-recording film and a ferromagnetic film on a substrate. The information-recording film is composed of, for example, an amorphous ferrimagnetic material having perpendicular magnetization. Further, the ferromagnetic film is composed of a magnetic material which has saturation magnetization larger than that of the information-recording film. Accordingly, the leak magnetic flux from the ferromagnetic film is larger than that from the information-recording film. The magnetic recording medium and a magnetic recording apparatus are obtained, which are excellent in thermal stability and which are preferred to perform super high density recording.
摘要翻译：磁记录介质包括在基板上的信息记录膜和铁磁膜。信息记录膜由例如具有垂直磁化的非晶铁磁材料构成。此外，铁磁膜由具有比信息记录膜的饱和磁化强度大的饱和磁化强度的磁性材料构成。因此，来自铁磁膜的泄漏磁通量大于来自信息记录膜的漏磁通量。获得磁性记录介质和磁记录装置，其热稳定性优异，并且优选进行超高密度记录。

4. 发明授权

US06584044B2 Magneto-optical recording apparatus using multiple magnetic field strengths for recording different mark lengths 失效
标题翻译：使用多个磁场强度记录不同标记长度的磁光记录装置
公开(公告)号：US06584044B2
公开(公告)日：2003-06-24
申请号：US10059192
申请日：2002-01-31
申请人： Manabu Tani , Hiroyuki Awano , Masafumi Yoshihiro , Masaki Sekine
发明人： Manabu Tani , Hiroyuki Awano , Masafumi Yoshihiro , Masaki Sekine
IPC分类号： G11B1100
CPC分类号： G11B11/1053 , G11B11/10513 , G11B11/10515 , G11B11/10528
摘要： A recording method for recording information on a recording layer of a magneto optical recording medium by radiating a recording light beam onto the medium while applying a magnetic field in a recording direction to the medium. The method includes applying a magnetic field having a magnetic field strength H1 in the recording direction when recording a record mark having a mark length A on the recording layer, and applying a magnetic field have a magnetic field strength H2 in the recording direction when recording a record mark having a mark length B (B≠A) on the recording layer. Independent of the lengths of the magnetic domains recorded on the recording layer, the record information can be transferred to a reproducing layer making it possible to reproduce high density record information.
摘要翻译：一种用于在磁光记录介质的记录层上记录信息的记录方法，该方法是在记录方向上向介质施加磁场的同时，将记录光束照射到介质上。该方法包括当在记录层上记录具有标记长度A的记录标记时，在记录方向上施加具有磁场强度H1的磁场，并且在记录方向时施加磁场具有记录方向上的磁场强度H2 在记录层上具有标记长度B（B <> A）的记录标记。独立于记录在记录层上的磁畴的长度，记录信息可被传送到再现层，从而可以再现高密度记录信息。

5. 发明授权

US06385141B1 Magneto-optical recording method capable of adjusting the sizes magnetic domain 失效
标题翻译：能够调整磁畴尺寸的磁光记录方法
公开(公告)号：US06385141B1
公开(公告)日：2002-05-07
申请号：US09478459
申请日：2000-01-06
申请人： Manabu Tani , Hiroyuki Awano , Masafumi Yoshihiro , Masaki Sekine
发明人： Manabu Tani , Hiroyuki Awano , Masafumi Yoshihiro , Masaki Sekine
IPC分类号： G11B1100
CPC分类号： G11B11/1053 , G11B11/10513 , G11B11/10515 , G11B11/10528
摘要： A bit of binary information which is one of “1” and “0” is assigned to a domain pattern which is a combination of a recorded magnetic domain and a magnetic domain magnetized in the direction opposite to the direction in which the recording domain is magnetized. A bit of binary information which is the other of “1” and “0” is assigned to a domain pattern consisting of two magnetic domains magnetized in the same direction as the foregoing magnetic domain is magnetized. Consequently, two or more consecutive bits of record information are formed, on a recording layer, as a series of domain patterns each of which is a combination, as a record information unit, of a recorded magnetic domain and a magnetic domain magnetized in the direction opposite to the direction in which the recording domain is magnetized. Independent of the lengths of the magnetic domains recorded on the recording layer, the record information can be transferred to a reproducing layer. This makes it possible to reproduce high-density record information securely or reliably.
摘要翻译：将作为“1”和“0”之一的二进制信息的一位分配给域图案，其是记录磁畴和磁记录磁场方向相反方向磁化的磁畴的组合。将另一个“1”和“0”的二进制信息分配给由与上述磁畴磁化相同方向磁化的两个磁畴组成的域模式。因此，在记录层上形成记录信息的两个或更多个连续位作为一系列域模式，每个区域模式是作为记录信息单元的记录磁畴和沿该方向磁化的磁畴的记录信息单元的组合与记录域被磁化的方向相反。独立于记录在记录层上的磁畴的长度，记录信息可被传送到再现层。这使得可以安全或可靠地再现高密度记录信息。

6. 发明授权

US06388954B1 Magneto-optical recording medium having clock-marks on recording layer and apparatus for recording and reproducing same 失效
标题翻译：在记录层上具有时钟标记的磁光记录介质以及用于记录和再现记录层的装置
公开(公告)号：US06388954B1
公开(公告)日：2002-05-14
申请号：US09280811
申请日：1999-03-30
申请人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa , Manabu Tani , Masafumi Yoshihiro , Masaki Sekine
发明人： Hiroyuki Awano , Katsusuke Shimazaki , Hiroki Takao , Norio Ohta , Akiyoshi Itou , Katsuji Nakagawa , Manabu Tani , Masafumi Yoshihiro , Masaki Sekine
IPC分类号： G11B1100
CPC分类号： G11B7/1275 , G11B11/10515 , G11B11/10543
摘要： The magneto-optical recording medium has a magnetic domain magnification reproducing layer and an information recording layer. Clock marks are formed on the information recording layer, making it possible to generate a reproducing clock on the basis of these. The clock marks are detected either by irradiating directly with light of wavelength &lgr;2(&lgr;1≠&lgr;2), being different from the light of wavelength &lgr;1 which is used for reproducing the recording marks, or by applying a direct-current magnetic field, transferring and enlarging the clock marks on to the magnetic domain magnification reproducing layer, and detecting the reproduction signals from this magnetic domain magnification reproducing layer. Since the reproducing clock is in exact synchronisation with the recording marks, it is eminently suitable as a clock for pulse-modulated reproducing light and reproducing magnetic fields used when reproducing the reproducing layer.
摘要翻译：磁光记录介质具有磁畴倍率再现层和信息记录层。在信息记录层上形成时钟标记，从而可以基于这些生成再现时钟。通过直接照射波长为lambd2（lambd1> lambd2）的光，不同于用于再现记录标记的波长lambd1的光，或通过施加直流磁场，转印和将时钟标记放大到磁畴倍率再现层，并检测来自该磁畴倍率再现层的再现信号。由于再现时钟与记录标记完全同步，所以它非常适合用作脉冲调制再现光的时钟并且再现再生层时使用的再现磁场。

7. 发明授权

US07110327B2 Magneto-optical recording and reproducing method, using reproducing layer with high saturation magnetization 失效
标题翻译：磁光记录和再现方法，使用具有高饱和磁化强度的再现层
公开(公告)号：US07110327B2
公开(公告)日：2006-09-19
申请号：US10200289
申请日：2002-07-23
申请人： Hiroki Takao , Yuji Yamazaki , Susumu Imai , Hiroyuki Awano , Katsusuke Shimazaki
发明人： Hiroki Takao , Yuji Yamazaki , Susumu Imai , Hiroyuki Awano , Katsusuke Shimazaki
IPC分类号： G11B11/00 , G11B5/66
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/10 , G11B5/127 , G11B5/1278 , G11B5/40 , G11B5/488 , G11B5/66 , G11B5/74 , G11B5/82 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , Y10S428/90 , Y10T428/12611
摘要： A magnetic recording medium comprises, on a substrate, a recording auxiliary layer, a recording holding layer, recording control layer, and a recording layer. The recording layer is constructed by using a ferri-magnetic material having perpendicular magnetization. The data can be recorded at a super high density by using the recording and reproducing head of the present invention, because the recording layer has the perpendicular magnetization. The disappearance of data, which would be otherwise caused by the thermomagnetic relaxation phenomenon, is suppressed after recording the data, because the recording layer has large coercive force at the room temperature. The data, which is recorded at the super high density on the magnetic recording medium, can be reproduced by using a magnetic resistance element carried on the recording and reproducing head.
摘要翻译：磁记录介质在基板上包括记录辅助层，记录保持层，记录控制层和记录层。记录层通过使用具有垂直磁化强度的铁磁材料构成。由于记录层具有垂直磁化强度，所以通过使用本发明的记录和再现头可以以超高密度记录数据。由于记录层在室温下具有较大的矫顽力，所以在记录数据之后，由于热磁性松弛现象而导致的数据的消失被抑制。可以通过使用在记录和再现头上携带的磁阻元件来再现在磁记录介质上以超高密度记录的数据。

8. 发明授权

US06455174B1 Magnetic recording medium, recording and reproducing head, and magnetic recording and reproducing method 失效
公开(公告)号：US06455174B1
公开(公告)日：2002-09-24
申请号：US09433020
申请日：1999-11-03
申请人： Hiroki Takao , Yuji Yamazaki , Susumu Imai , Hiroyuki Awano , Katsusuke Shimazaki
发明人： Hiroki Takao , Yuji Yamazaki , Susumu Imai , Hiroyuki Awano , Katsusuke Shimazaki
IPC分类号： G11B566
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/10 , G11B5/127 , G11B5/1278 , G11B5/40 , G11B5/488 , G11B5/66 , G11B5/74 , G11B5/82 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , Y10S428/90 , Y10T428/12611
摘要： A magnetic recording medium comprises, on a substrate, a recording auxiliary layer, a recording holding layer, recording control layer, and a recording layer. The recording layer is constructed by using a ferri-magnetic material having perpendicular magnetization. The data can be recorded at a super high density by using the recording and reproducing head of the present invention, because the recording layer has the perpendicular magnetization. The disappearance of data, which would be otherwise caused by the thermomagnetic relaxation phenomenon, is suppressed after recording the data, because the recording layer has large coercive force at the room temperature. The data, which is recorded at the super high density on the magnetic recording medium, can be reproduced by using a magnetic resistance element carried on the recording and reproducing head.

9. 发明申请

US20080117726A1 Optical disc recording and reproducing apparatus and disc autochanger 有权
标题翻译：光盘记录和再现设备和光盘自动转换器
公开(公告)号：US20080117726A1
公开(公告)日：2008-05-22
申请号：US11785378
申请日：2007-04-17
申请人： Takashi Yoshida , Toshihiko Shimizu , Yukinobu Abe , Hiroyuki Awano , Yutaka Watanabe
发明人： Takashi Yoshida , Toshihiko Shimizu , Yukinobu Abe , Hiroyuki Awano , Yutaka Watanabe
IPC分类号： G11B17/22
CPC分类号： G11B17/223 , G11B17/028
摘要： An object of the invention to provide a disc autochanger without any disc reversing mechanism by using on A-side recording and reproducing apparatus and a B-side recording and reproducing apparatus while using a sheet-like optical disc in which both surfaces can be recorded and reproduced. The disc autochanger is constituted by a cartridge storing a plurality of sheet-like optical discs in which both surfaces are recorded and reproduced in a state of putting in a tray, the A-side recording and reproducing apparatus in which a moving table of an A-side recording and reproducing portion is arranged in an upper side of a tray take-out mechanism and a moving table of a cap is provided in a lower side thereof, and the B-side recording and reproducing apparatus in which a moving table of a B-side recording and reproducing portion is arranged in a lower side of the tray take-out mechanism and a moving table of a cap is provided in an upper side thereof. Accordingly, since it is possible to alternately supply the sheet-like optical discs in which both surfaces are recorded and reproduced to the A-side and B-side recording and reproducing apparatuses from the cartridge, it is possible to record and reproduce continuously and in parallel.
摘要翻译：本发明的目的是提供一种在使用能够记录两个表面的片状光盘的情况下，通过在A侧记录和再现装置和B侧记录和再现装置上使用而没有任何盘反向机构的盘自动转换器，转载。光盘自动转换器由存放多个片状光盘的盒构成，其中以放入托盘的状态记录和再现两个表面，A侧记录和再现装置中，A型移动台侧记录再现部分布置在托盘取出机构的上侧，盖的移动台设置在其下侧;以及B侧记录和再现装置，其中移动台 B侧记录和再现部分布置在托盘取出机构的下侧，盖的移动台在其上侧设置。因此，由于可以从盒中交替地向A侧和B侧记录和再现装置供给其中记录和再现两个表面的片状光盘，所以可以连续地记录和再现平行。

10. 发明授权

US06424601B1 Magneto-optical recording media having an auxiliary magnetic layer 失效
标题翻译：具有辅助磁性层的磁光记录介质
公开(公告)号：US06424601B1
公开(公告)日：2002-07-23
申请号：US09142747
申请日：1998-11-16
申请人： Satoru Oonuki , Masafumi Yoshihiro , Nobuyuki Nagai , Katsusuke Shimazaki , Hiroyuki Awano , Hiroshi Shirai , Norio Ohta , Satoshi Sumi , Atsushi Yamaguchi
发明人： Satoru Oonuki , Masafumi Yoshihiro , Nobuyuki Nagai , Katsusuke Shimazaki , Hiroyuki Awano , Hiroshi Shirai , Norio Ohta , Satoshi Sumi , Atsushi Yamaguchi
IPC分类号： G11B1100
CPC分类号： G11B11/10515 , G11B7/00745 , G11B11/10508 , G11B11/10521 , G11B11/10528 , G11B11/10578 , G11B11/10584 , G11B11/10593 , G11B11/10595 , G11B27/19 , G11B27/3027
摘要： A magneto-optical recording medium 11 has, in order from the laser irradiation side, a second auxiliary magnetic film 4, first auxiliary magnetic film 5, and magneto-optical recording film 6. First and second auxiliary magnetic films 4 and 5 change from in-plane magnetization to perpendicular magnetization when their respective critical temperatures TCR1 and TCR2 are exceeded. The Curie temperatures TC0, TC1 and TC2 of the magneto-optical recording film and the first and the second auxiliary magnetic films 4, 5 and their critical temperatures TCR1 and TCR2 satisfy the relationship: room temperature
摘要翻译：磁光记录介质11从激光照射侧起依次具有第二辅助磁性膜4，第一辅助磁性膜5和磁光记录膜6.第一和第二辅助磁性膜4和5从当它们各自的临界温度TCR1和TCR2被超过时，平面磁化对垂直磁化。磁光记录膜和第一和第二辅助磁膜4,5的居里温度TC0，TC1和TC2及其临界温度TCR1和TCR2满足关系：室温

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