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61. 发明申请

WO2004017317A1 光磁気記録媒体及び光磁気記憶装置审中-公开
标题翻译：磁光记录介质和磁光存储器件
公开(公告)号：WO2004017317A1
公开(公告)日：2004-02-26
申请号：PCT/JP2002/008252
申请日：2002-08-13
申请人：富士通株式会社 , 細川哲夫
发明人：細川哲夫
IPC分类号： G11B11/105
CPC分类号： G11B11/10591 , G11B11/10515 , G11B11/10593
摘要： A magneto-optical recording medium comprising a substrate, a first recording layer mainly consisting of Tb and FeCo deposited on the substrate, dominant in compensation composition or transition metal at room temperature, and exhibiting perpendicular magnetization, and a second recording layer provided on the first recording layer, having compensation temperature of at least 100 °C, dominant in rare earth element at room temperature, and exhibiting perpendicular magnetization. Inequalities 60 °C Hc2.t2 are preferably satisfied, where Tc1 and Tc2 are Curie temperature of the first and second recording layers, Hc1 and Hc2 are the coercive force at room temperature, and t1 and t2 are film thickness.
摘要翻译：一种磁光记录介质，包括基板，主要由沉积在基板上的Tb和FeCo组成的第一记录层，在补偿组成或室温下的过渡金属中占优势，呈现垂直磁化，第二记录层设置在第一记录层，补偿温度至少为100℃，在室温下在稀土元素中占主导地位，呈现垂直磁化强度。其中Tc1和Tc2是第一和第二记录层的居里温度，Hc1和Hc2是室温下的矫顽力，t1和t2的温度不同于60℃ Hc2.t2 t2是膜厚度。

62. 发明申请

WO2003083853A1 RECORDING METHOD USING REACTION AND DIFFUSION, RECORDING MEDIUM RECORDED ON USING THE RECORDING METHOD, AND RECORDING/REPRODUCING APPARATUS FOR THE RECORDING MEDIUM 审中-公开
标题翻译：使用反应和扩散的记录方法，使用记录方法记录的记录介质和用于记录介质的记录/再现装置
公开(公告)号：WO2003083853A1
公开(公告)日：2003-10-09
申请号：PCT/KR2003/000625
申请日：2003-03-28
申请人： SAMSUNG ELECTRONICS CO., LTD. , NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY , KIM, Joo-Ho , TOMINAGA, Junji
发明人： KIM, Joo-Ho , TOMINAGA, Junji
IPC分类号： G11B7/24
CPC分类号： G11B7/00454 , B82Y10/00 , G11B7/24065 , G11B7/243 , G11B7/257 , G11B11/10504 , G11B11/10515 , G11B11/10528 , G11B11/10584 , G11B11/10593 , G11B11/10597
摘要： A phase change and/or magneto-optical recording method using laser induced reaction and diffraction in a recording layer and a dielectric layer of a recording medium, a recording medium recorded on using the method, and a recording and reproducing apparatus for the recording medium are provided. The phase change recording method involves changing absorption coefficients of optical constants of a recording layer and a dielectric layer of a recording medium by laser induced reaction and diffusion. The magneto-optical recording method involves changing the magnetization direction in a recording layer while the recording layer and a dielectric layer of a recording medium are irradiated with laser to induce reaction and diffusion therein. A recording method based on the physical properties of protruding record marks formed by laser induced reaction and diffusion in a recording layer and a dielectric layer is also provided.
摘要翻译：在记录介质的记录层和电介质层中使用激光诱导反应和衍射的相变和/或磁光记录方法，使用该方法记录的记录介质以及记录介质的记录和再现装置，提供。相变记录方法包括通过激光诱导的反应和扩散来改变记录层和介质层的光学常数的吸收系数。磁光记录方法包括改变记录层中的磁化方向，同时用激光照射记录介质层和记录介质的介电层以在其中引起反应和扩散。还提供了基于由记录层和电介质层中的激光诱导反应和扩散形成的突出记录标记的物理性质的记录方法。

63. 发明申请

WO2002077987A1 光磁気記録媒体及びその再生方法审中-公开
标题翻译：磁记录介质及其替代方法
公开(公告)号：WO2002077987A1
公开(公告)日：2002-10-03
申请号：PCT/JP2002/002923
申请日：2002-03-26
申请人：日立マクセル株式会社 , 粟野博之 , 関根正樹 , 谷学 , 今井奨 , 井上和子 , 鈴木芳和 , 國府田安彦 , 石崎修 , 島崎勝輔
发明人：粟野博之 , 関根正樹 , 谷学 , 今井奨 , 井上和子 , 鈴木芳和 , 國府田安彦 , 石崎修 , 島崎勝輔
IPC分类号： G11B11/105
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593
摘要： A magnetooptic recording medium comprising a recording layer (5), an intermediate layer (4) and a reproducing layer (3). The reproducing layer (3) is formed from a rear-earth metal-dominant rear-earth transition metal alloy, and the intermediate layer (4) and the recording layer (5) are formed from a transition metal-dominant rear-earth transition metal alloy. The intermediate layer (4), providing an in-plane magnetization at at least 140
摘要翻译：包括记录层（5），中间层（4）和再现层（3）的磁光记录介质。再生层（3）由背土金属主导的后土过渡金属合金形成，中间层（4）和记录层（5）由过渡金属主导的后土过渡金属合金。在至少140℃提供面内磁化的中间层（4）在再现时屏蔽与记录层（5）和再现层（3）之间的交换相互作用的粘合。中间层（4）的磁畴与再现层（5）的磁畴之间的静电斥力将转移到再现层（3）上的磁畴（3A）扩大到最小磁畴直径的尺寸。扩展磁畴的再现将提供具有放大强度的再现信号而不发生重影信号。

64. 发明申请

WO2002065465A1 光磁気記録媒体审中-公开
标题翻译：磁记录介质
公开(公告)号：WO2002065465A1
公开(公告)日：2002-08-22
申请号：PCT/JP2001/001048
申请日：2001-02-14
申请人：富士通株式会社 , 杉本利夫 , 玉野井健
发明人：杉本利夫 , 玉野井健
IPC分类号： G11B11/105
CPC分类号： G11B11/10593 , G11B11/10591 , Y10T428/12465 , Y10T428/12896 , Y10T428/12986 , Y10T428/24942
摘要： A magnetooptic recording medium in which recorded information can be read out from an area smaller than a beam spot by irradiating the medium with a light beam while applying an external field during reproduction comprises a magnetic recording layer for recording/holding information, a magnetic reproduction layer provided on the magnetic recording layer on the incident side of light beam, a nonmagnetic layer provided on the magnetic recording layer on the side opposite to the magnetic reproduction layer, and a magnetic assist layer provided on the nonmagnetic layer. The magnetic assist layer has a coercive force weaker than the external field being applied while recording or reproducing information.
摘要翻译：一种磁光记录介质，其中通过在再现期间施加外部场的同时用光束照射介质，可以从小于束斑的区域读出记录信息，包括用于记录/保存信息的磁记录层，磁性再现层设置在光束入射侧的磁记录层上，设置在与磁性再生层相反一侧的磁记录层上的非磁性层和设置在非磁性层上的磁辅助层。磁辅助层在记录或再现信息时具有弱于施加外部场的矫顽力。

65. 发明申请

WO99035644A1 METHOD AND APPARATUS FOR MAGNETOOPTIC REPRODUCTION 审中-公开
标题翻译：用于磁复制的方法和装置
公开(公告)号：WO99035644A1
公开(公告)日：1999-07-15
申请号：PCT/JP1999/000065
申请日：1999-01-12
IPC分类号： G11B7/007 , G11B7/135 , G11B11/105 , G11B11/10
CPC分类号： B82Y10/00 , G11B7/1372 , G11B7/24082 , G11B11/10515 , G11B11/10543 , G11B11/10554 , G11B11/1058 , G11B11/10584 , G11B11/10593
摘要： A device for reproduction from a magnetooptic disk (751) comprises a swing arm, on one end of which is mounted a magnetooptic head that includes a slider (914) and a solid-state immersion lens (772). A photodetector system P12 is provided on the other end of the arm. The magnetooptic disk (751) includes a recording layer, and a reproduction layer or auxiliary magnetic layer in which horizontal magnetization is turned into vertical magnetization when a critical temperature is exceeded. During reproduction, the magnetooptic disk is irradiated with low-power modulated light and high-power modulated light synchronously with reproduction clock pulses, while an alternating magnetic field is applied. The low-power light causes a transfer of magnetic domains from the recording layer to the reproduction layer and expansion of the magnetic domains, while the high-power light eliminates the expanded domains. Magnetic domains can be individually reproduced with a high C/N ratio.
摘要翻译：用于从磁光盘（751）再现的装置包括摆臂，其一端安装有包括滑块（914）和固态浸没透镜（772）的磁光头。光检测器系统P12设置在臂的另一端。磁光盘（751）包括记录层以及当超过临界温度时水平磁化变为垂直磁化的再现层或辅助磁性层。在再现期间，磁光盘用再生时钟脉冲同步地用低功率调制光和大功率调制光照射，同时施加交变磁场。低功率光引起磁畴从记录层转移到再生层并扩大磁畴，而高功率光消除了扩展域。可以以高C / N比单独再现磁畴。

66. 发明申请

WO1997022969A1 MAGNETO-OPTIC RECORDING MEDIUM AND REPRODUCTION METHOD THEREOF 审中-公开
标题翻译：磁光记录介质及其再生方法
公开(公告)号：WO1997022969A1
公开(公告)日：1997-06-26
申请号：PCT/JP1996003716
申请日：1996-12-20
申请人： HITACHI MAXELL, LTD. , OHNUKI, Satoru , OHTA, Norio , SHIMAZAKI, Katsusuke , YOSHIHIRO, Masafumi , TAKAO, Hiroki , WATANABE, Hitoshi
发明人： HITACHI MAXELL, LTD.
IPC分类号： G11B11/10
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593
摘要： A magneto-optic recording medium (11) includes a second auxiliary magnetic film (4), a first auxiliary magnetic film (5) and a magneto-optic recording film (6) on a substrate (1). The auxiliary magnetic films (4 and 5) change from in-plane magnetization to vertical magnetization at critical temperatures TCR1 and TCR2. Since they have the relation TCR1 > TCR2, the magnetic domain transferred from the magneto-optic recording film (6) to the first auxiliary magnetic film (5) at the time of reproduction is expanded further greater in diameter and is transferred to the second auxiliary magnetic film (4) when the temperature profiles of the auxiliary magnetic films inside an optical spot are utilized. The magnetic domain of the magneto-optic recording film (6) can be expanded and transferred, too, by means of magnetostatic coupling by using a non-magnetic film (9) in place of the first auxiliary magnetic film (5). Pulse reproduction light subjected to power modulation in synchronism with a reproduction clock can be used at the time of reproduction. Even when a very small magnetic domain is recorded, the intensity of an amplified reproduction signal can be detected and excellent C/N can be obtained.
摘要翻译：磁光记录介质（11）在基板（1）上包括第二辅助磁膜（4），第一辅助磁膜（5）和磁光记录膜（6）。在临界温度TCR1和TCR2，辅助磁膜（4和5）从面内磁化转变为垂直磁化。由于它们具有关系TCR1> TCR2，所以在再现时从磁光记录膜（6）转移到第一辅助磁膜（5）的磁畴的直径进一步扩大并被转移到第二辅助利用光斑内的辅助磁性膜的温度分布时的磁性膜（4）。也可以通过使用非磁性膜（9）代替第一辅助磁性膜（5）的静磁耦合来扩展和转移磁光记录膜（6）的磁畴。在再现时可以使用经受与再现时钟同步的功率调制的脉冲再现光。即使记录非常小的磁畴，也可以检测出放大的再现信号的强度，可以获得优异的C / N。

67. 发明申请

WO1995029483A1 MAGNETOOPTIC RECORDING MEDIUM AND MAGNETOOPTIC RECORDING HEAD 审中-公开
标题翻译：磁记录介质和磁记录头
公开(公告)号：WO1995029483A1
公开(公告)日：1995-11-02
申请号：PCT/JP1995000743
申请日：1995-04-17
申请人： SONY CORPORATION , FUKUMOTO, Atsushi
发明人： SONY CORPORATION
IPC分类号： G11B11/10
CPC分类号： G11B7/1365 , G11B7/00718 , G11B11/10543 , G11B11/10545 , G11B11/10578 , G11B11/10584 , G11B11/10593
摘要： A magnetooptic recording medium includes a substrate and a magnetooptic recording film. The substrate is made of a material having a light transmission property, and the magnetooptic recording film is disposed on one side of this substrate. A groove having an optical depth in a range between lambda /8 and lambda /4, where lambda is the wavelength of an incident optical beam, is formed in the surface on which the magnetooptic recording film is disposed. Themagnetooptic recording film is formed in such a manner that a Kerr ellipticity becomes 0 DEG . A magnetooptic recording head includes an optical axis device for correcting the Kerr ellipticity of the recording medium, disposed in an optical path between an objective lens for condensing the optical beams from a light source on the recording film and a polarizing beam splitter.
摘要翻译：磁光记录介质包括基底和磁光记录膜。基板由具有透光性的材料制成，并且磁光记录膜设置在该基板的一侧。在其上设置有磁光记录膜的表面中形成具有在λ/ 8和λ/ 4之间的范围内的光学深度的凹槽，其中λ是入射光束的波长。磁光记录膜以克尔椭圆率变为0°的方式形成。磁光记录头包括用于校正记录介质的克尔椭圆率的光轴装置，该光轴装置设置在用于聚集来自记录膜上的光源的光束的物镜和偏振分束器之间的光路中。

68. 发明公开

KR1020040077780A 광자기 기록 매체 및 그 기록 재생 장치 失效
标题翻译：磁光记录介质及其记录/再现设备
公开(公告)号：KR1020040077780A
公开(公告)日：2004-09-06
申请号：KR1020047011398
申请日：2002-02-25
申请人： 후지쯔 가부시끼가이샤
发明人： 구리타료 , 다마노이겐 , 이토쇼유 , 미하라모토노부
IPC分类号： G11B11/105
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593
摘要： 본 발명은 기록층, 중간층, 재생층이 이 순서로 적층되고, 기록층에 기록된 정보를 중간층을 통하여 재생층에 전사함으로써 재생을 행하는 광자기 기록 매체로서, 상기 재생층이 중간층 위에 차례로 형성된 상부 재생층, 결합층, 하부 재생층으로 이루어지고, 소정 온도로 상승된 영역의 상부 재생층의 자화 정보를 결합층에 의해 하부 재생층에 전사하는 것을 특징으로 하는 광자기 기록 매체를 제공하는 것이다.

69. 发明公开

KR1020000064429A 광자기기록매체및그재생방법 无效
标题翻译：磁光记录介质及其再现方法
公开(公告)号：KR1020000064429A
公开(公告)日：2000-11-06
申请号：KR1019980704554
申请日：1996-12-20
申请人： 히다치 마쿠세루가부시키가이샤
发明人： 오누키사토루 , 오타노리오 , 시마자키가츠스케 , 요시히로마사후미 , 다카오히로키 , 와타나베히토시
IPC分类号： G11B11/10
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10593
摘要： 광자기기록매체(11)은기판(1)상에제2 보조자성막(4), 제1 보조자성막(5), 광자기기록막(6)을구비한다. 보조자성막(4), (5)는임계온도T, T로면내자화에서수직자화로전이한다. T>T의관계를가지므로광스폿내의보조자성막의온도프로파일을이용하면, 재생시에광자기기록막(6)에서제1 보조자성막(5)에전사한자구는한층큰 직경으로확대되어제2 보조자성막(4)에전사된다. 제1 보조자성막(5) 대신비자성막(9)를사용해서정자결합에의해광자기기록막(6)의자구를확대전사시킬수 있다. 재생시에는재생클럭과동기해서파워변조된펄스재생광을사용할수 있다. 미소한자구가기록된경우에도증폭된재생신호강도가검출되고양호한 C/N이얻어진다.
摘要翻译：磁光记录介质11在基板1上具有第二辅助膜4，第一辅助膜5和磁光记录膜6。在临界温度T和T下，辅助膜（4）和（5）分别从面内磁化转变为垂直磁化。 T> T时，使用光点中的辅助膜的温度分布，在这种情况下，在再现时，从磁光记录膜6到第一辅助膜5的转印膜被扩大到更大的直径，并转移到电影形成4。通过使用非磁性膜9的精子结合来代替第一辅助膜5，能够扩大并输送分辨型磁记录膜6的球。在再现时，可以使用与再现时钟同步进行功率调制的脉冲再现光。即使记录了微小的磁条，也能检测到放大的读取信号强度，并获得良好的C / N。

70. 发明公开

KR1020000022390A 광자기기록매체, 그 재생방법 및 재생장치 无效
标题翻译： MGNETO光学记录介质，其再现方法和再现器
公开(公告)号：KR1020000022390A
公开(公告)日：2000-04-25
申请号：KR1019980710821
申请日：1997-07-11
申请人： 산요덴키가부시키가이샤 , 히다치 마쿠세루가부시키가이샤
发明人： 오누키사토루 , 요시히로마사후미 , 나가이노부유키 , 시마자키가츠스케 , 아와노히로유키 , 시라이히로시 , 오타노리오 , 스미사토시 , 야마구치아츠시
IPC分类号： G11B11/10
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： PURPOSE: A magneto-optical recording medium and a signal reproducing method and reproducing apparatus in which a reproduction signal with satisfactory C/N can be obtained even when minute magnetic domains are recorded are provided CONSTITUTION: In this magneto-optical recording medium, the critical temperatures of the first and second auxiliary magnetic layers are set such that the critical temperature in the first auxiliary magnetic layer 5 is less than the critical temperature in the second auxiliary magnetic layer 4. Consequently, magnetic domain 23 which is transferred into second auxiliary magnetic layer 4 is magnified, compared with the size of magnetic domain 21, because of the exchange coupling force from the transfer magnetic domain of first auxiliary magnetic layer5 and the perpendicular magnetic anisotropy of the second auxiliary magnetic layer. Therefore, the reproduction signal detected by means of the magneto-optical effect is amplified as same size as recording magnetic domain 22 in order to make possible reproduction with high C/N. For the case of the transition, the magnetic must be twisted through 90 degree, the thickness of the first auxiliary magnetic layer is greater than the thickness of the magnetic wall of first auxiliary magnetic layer5.
摘要翻译：目的：提供即使在记录微小磁畴的情况下也能获得令人满意的C / N的再现信号的磁光记录介质和信号再现方法和再现装置。构成：在该磁光记录介质中，临界第一和第二辅助磁性层的温度被设定为使得第一辅助磁性层5中的临界温度小于第二辅助磁性层4中的临界温度。因此，转移到第二辅助磁性层中的磁畴23 由于来自第一辅助磁性层5的转移磁畴的交换耦合力和第二辅助磁性层的垂直磁各向异性，与放大了磁畴21的尺寸相比较。因此，通过磁光效应检测到的再现信号被放大为与记录磁畴22相同的大小，以便能够以高C / N再现。对于过渡的情况，磁性必须扭转90度，第一辅助磁性层的厚度大于第一辅助磁性层5的磁壁的厚度。

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