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1. 发明授权

US6031816A Optical recording medium, method for manufacturing the same, and optical information recording and reproducing device used with respect to the same 有权
标题翻译：光记录介质及其制造方法以及与此相关的光信息记录再现装置
公开(公告)号：US6031816A
公开(公告)日：2000-02-29
申请号：US330495
申请日：1999-06-11
申请人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
发明人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/26 , G11B11/105
CPC分类号： G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0901 , G11B7/261 , G11B11/10578 , G11B11/10582 , G11B7/0938 , G11B7/24
摘要： An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address information is recorded. Besides, the address recording sections thus provided in the grooves are linearly disposed in radial directions of the optical disk. By thus arranging the optical disk on whose grooves and/or lands information is recorded, mixing of wobble frequency components in reproduced information signals does not occur, the sector method is applicable to the optical disk, and information signals of high quality can be obtained.
摘要翻译：光盘具有地址记录部分，每个地址记录部分具有凹槽的一个侧壁的摆动部分。每个地址记录部分通过在相邻的凸台中提供凹槽的凸起来形成，以便加宽凹槽。由于以这样提供的摆动形式为凹凸形式，所以记录地址信息。此外，这样设置在凹槽中的地址记录部分在光盘的径向上线性地设置。通过这样布置记录有槽和/或焊盘信息的光盘，不会发生重放信息信号中的摆动频率分量的混合，扇区方法可应用于光盘，并且可以获得高质量的信息信号。

2. 发明授权

US5933411A Optical recording medium having a wobbling section for recording address information and methods of recording and reproduction using same 失效
标题翻译：具有用于记录地址信息的摆动部分和使用其的记录和再现方法的光学记录介质
公开(公告)号：US5933411A
公开(公告)日：1999-08-03
申请号：US890401
申请日：1997-07-09
申请人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
发明人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/26 , G11B11/105
CPC分类号： G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0901 , G11B7/261 , G11B11/10578 , G11B11/10582 , G11B7/0938 , G11B7/24
摘要： An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address information is recorded. Besides, the address recording sections thus provided in the grooves are linearly disposed in radial directions of the optical disk. By thus arranging the optical disk on whose grooves and/or lands information is recorded, mixing of wobble frequency components in reproduced information signals does not occur, the sector method is applicable to the optical disk, and information signals of high quality can be obtained.
摘要翻译：光盘具有地址记录部分，每个地址记录部分具有凹槽的一个侧壁的摆动部分。每个地址记录部分通过在相邻的凸台中提供凹槽的凸起来形成，以便加宽凹槽。由于以这样提供的摆动形式为凹凸形式，所以记录地址信息。此外，这样设置在凹槽中的地址记录部分在光盘的径向上线性地设置。通过这样布置记录有槽和/或焊盘信息的光盘，不会发生重放信息信号中的摆动频率分量的混合，扇区方法可应用于光盘，并且可以获得高质量的信息信号。

3. 发明授权

US06295271B1 Optical recording medium having tracks, each track having a plurality of wobble sections/one-side wobble regions 失效
标题翻译：具有轨道的光记录介质，每个轨道具有多个摆动部分/一侧摆动区域
公开(公告)号：US06295271B1
公开(公告)日：2001-09-25
申请号：US09475414
申请日：1999-12-30
申请人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
发明人： Tetsuya Inui , Hideaki Sato , Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
IPC分类号： G11B724
CPC分类号： G11B7/005 , G11B7/00718 , G11B7/00745 , G11B7/0901 , G11B7/0938 , G11B7/24 , G11B7/261 , G11B11/10578 , G11B11/10582
摘要： An optical disk has address recording sections each of which has a wobbled part of one of side walls of a groove. Each address recording section is formed by providing convexes of a groove in an adjacent land so as to widen the groove. With the wobbles thus provided in a concavo-convex form, address information is recorded. Besides, the address recording sections thus provided in the grooves are linearly disposed in radial directions of the optical disk. By thus arranging the optical disk on whose grooves and/or lands information is recorded, mixing of wobble frequency components in reproduced information signals does not occur, the sector method is applicable to the optical disk, and information signals of high quality can be obtained.
摘要翻译：光盘具有地址记录部分，每个地址记录部分具有凹槽的一个侧壁的摆动部分。每个地址记录部分通过在相邻的凸台中提供凹槽的凸起来形成，以便加宽凹槽。由于以这样提供的摆动形式为凹凸形式，所以记录地址信息。此外，这样设置在凹槽中的地址记录部分在光盘的径向上线性地设置。通过这样布置记录有槽和/或焊盘信息的光盘，不会发生重放信息信号中的摆动频率分量的混合，扇区方法可应用于光盘，并且可以获得高质量的信息信号。

4. 发明授权

US06272077B1 Magneto-optical recording medium having intermediate layer of in plane magnetization 有权
标题翻译：具有平面磁化中间层的磁光记录介质
公开(公告)号：US06272077B1
公开(公告)日：2001-08-07
申请号：US09479256
申请日：2000-01-07
申请人： Akira Takahashi , Michinobu Mieda , Naoyasu Iketani , Go Mori , Junsaku Nakajima , Yoshiteru Murakami , Junji Hirokane
发明人： Akira Takahashi , Michinobu Mieda , Naoyasu Iketani , Go Mori , Junsaku Nakajima , Yoshiteru Murakami , Junji Hirokane
IPC分类号： G11B1110
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10586 , G11B11/10593
摘要： A magneto-optical memory medium according to the present invention comprises a reproducing layer, which has in-plane magnetization at room temperature and perpendicular magnetization when heated to above a predetermined temperature by a reproducing light beam; a recording layer, which is magnetostatically coupled to the reproducing layer; and an in-plane magnetized layer, provided adjacent to the recording layer, which has a Curie temperature at the above-mentioned predetermined temperature. In this medium, at temperatures below the predetermined temperature, signals recorded at high density in the recording layer are masked, and the above-mentioned magnetostatic coupling is suppressed, by magnetic masking by the in-plane magnetized layer. At temperatures above the predetermined temperature, however, within a domain forming part of the in-plane magnetized layer, the recording layer and the reproducing layer are magnetostatically coupled, and a recording bit of the recording layer is copied and expanded to a magnetic domain in the reproducing layer. Accordingly, with this medium, by reproducing from an expanded magnetic domain of the reproducing layer, even information from recording bits recorded at high density can be reproduced with high signal quality.
摘要翻译：根据本发明的磁光存储介质包括再现层，其在室温下具有面内磁化并且通过再现光束被加热到高于预定温度时的垂直磁化; 记录层，其被静磁耦合到再现层; 以及与记录层相邻的面内磁化层，居里温度在上述预定温度。在该介质中，在低于预定温度的温度下，记录层中以高密度记录的信号被屏蔽，并且通过面内磁化层的磁屏蔽来抑制上述静磁耦合。然而，在高于预定温度的温度下，在形成面内磁化层的一部分的区域内，磁静电耦合记录层和再现层，并且将记录层的记录位复制并扩展到磁畴中再现层。因此，利用该介质，通过从再现层的扩展磁畴再现，可以以高信号质量再现以高密度记录的记录位的信息。

5. 发明授权

US06147939A Magneto-optical recording medium having intermediate layer of in-plane magnetization 失效
标题翻译：具有平面内磁化中间层的磁光记录介质
公开(公告)号：US06147939A
公开(公告)日：2000-11-14
申请号：US32985
申请日：1998-03-02
申请人： Akira Takahashi , Michinobu Mieda , Naoyasu Iketani , Go Mori , Junsaku Nakajima , Yoshiteru Murakami , Junji Hirokane
发明人： Akira Takahashi , Michinobu Mieda , Naoyasu Iketani , Go Mori , Junsaku Nakajima , Yoshiteru Murakami , Junji Hirokane
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10586 , G11B11/10593
摘要： A magneto-optical memory medium according to the present invention comprises a reproducing layer, which has in-plane magnetization at room temperature and perpendicular magnetization when heated to above a predetermined temperature by a reproducing light beam; a recording layer, which is magnetostatically coupled to the reproducing layer; and an in-plane magnetized layer, provided adjacent to the recording layer, which has a Curie temperature at the above-mentioned predetermined temperature. In this medium, at temperatures below the predetermined temperature, signals recorded at high density in the recording layer are masked, and the above-mentioned magnetostatic coupling is suppressed, by magnetic masking by the in-plane magnetized layer. At temperatures above the predetermined temperature, however, within a domain forming part of the in-plane magnetized layer, the recording layer and the reproducing layer are magnetostatically coupled, and a recording bit of the recording layer is copied and expanded to a magnetic domain in the reproducing layer. Accordingly, with this medium, by reproducing from an expanded magnetic domain of the reproducing layer, even information from recording bits recorded at high density can be reproduced with high signal quality.
摘要翻译：根据本发明的磁光存储介质包括再现层，其在室温下具有面内磁化并且通过再现光束被加热到高于预定温度时的垂直磁化; 记录层，其被静磁耦合到再现层; 以及与记录层相邻的面内磁化层，居里温度在上述预定温度。在该介质中，在低于预定温度的温度下，记录层中以高密度记录的信号被屏蔽，并且通过面内磁化层的磁屏蔽来抑制上述静磁耦合。然而，在高于预定温度的温度下，在形成面内磁化层的一部分的区域内，磁静电耦合记录层和再现层，并且将记录层的记录位复制并扩展到磁畴中再现层。因此，利用该介质，通过从再现层的扩展磁畴再现，可以以高信号质量再现以高密度记录的记录位的信息。

6. 发明授权

US06122233A Optical disk having virtually constant width recording track and optical disk apparatus 失效
标题翻译：具有实际上恒定宽度的记录轨道和光盘装置的光盘
公开(公告)号：US06122233A
公开(公告)日：2000-09-19
申请号：US15011
申请日：1998-01-28
申请人： Naoyasu Iketani , Go Mori , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
发明人： Naoyasu Iketani , Go Mori , Michinobu Mieda , Yoshiteru Murakami , Junji Hirokane , Akira Takahashi
IPC分类号： G11B7/24 , G11B7/00 , G11B7/005 , G11B7/007 , G11B11/105 , G11B7/09
CPC分类号： G11B7/00745 , G11B11/10563 , G11B11/10565 , G11B7/00718
摘要： In an optical disk, grooves and lands serving as recording tracks are provided, the grooves are shaped so as to have virtually the same width, and in a first region, the two side walls of each groove wind in accordance with address information. The first region of the groove is formed with its leading portion located at the same angular position as the leading portion of at least one of the first regions of the adjacent grooves. Moreover, the winding portions corresponding to respective bits of the address information are formed in a manner so as to synchronize to the adjacent grooves. With this arrangement, it becomes possible to easily detect address information from the grooves and lands, and consequently to obtain an information reproducing signal with high quality.
摘要翻译：在光盘中，设置有用作记录轨迹的凹槽和凹槽，这些凹槽成形为具有实质上相同的宽度，并且在第一区域中，每个凹槽的两个侧壁根据地址信息而变风。凹槽的第一区域形成有其前端部分位于与相邻凹槽的第一区域中的至少一个的前端部分相同的角位置。此外，与地址信息的各个位对应的绕组部分以与相邻槽同步的方式形成。利用这种布置，可以容易地从凹槽和平台检测地址信息，从而获得高质量的信息再现信号。

7. 发明授权

US5991259A Optical disk with tracking guide of wind and unwind portions 失效
标题翻译：具有跟踪引导风和展开部分的光盘
公开(公告)号：US5991259A
公开(公告)日：1999-11-23
申请号：US886299
申请日：1997-07-01
申请人： Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Akira Takahashi
发明人： Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B7/24 , G11B7/00 , G11B7/004 , G11B7/007 , G11B7/09 , G11B7/26 , G11B27/19 , G11B27/30
CPC分类号： G11B27/3027 , G11B27/19 , G11B7/24082 , G11B7/0938
摘要： An optical disk substrate in which a winding groove, which is winding in accordance with address information, and a normal groove, which is not winding, are placed alternately in the radial direction as tracking guides used for tracking control. With respect to this optical disk substrate, a laser beam, which is used for forming patterns for the tracking guides, is applied while being switched alternately between the first mode that exerts oscillations in the disk radial direction in accordance with the address information and the second mode that does not exert oscillations. An optical disk has a construction in which at least a recording layer is formed on the optical disk substrate.
摘要翻译：根据地址信息卷绕卷绕槽的光盘基板和不卷绕的法线槽作为用于跟踪控制的跟踪引导件，沿径向交替放置。相对于该光盘基板，在根据地址信息在盘径向施加振荡的第一模式和第二模式之间交替地切换用于形成用于跟踪引导件的图案的激光束不发生振荡的模式。光盘具有至少在光盘基板上形成记录层的结构。

8. 发明授权

US5909412A Method for reproducing optical disk 失效
标题翻译：光盘再现方法
公开(公告)号：US5909412A
公开(公告)日：1999-06-01
申请号：US977206
申请日：1997-11-24
申请人： Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Akira Takahashi
发明人： Junichiro Nakayama , Naoyasu Iketani , Michinobu Mieda , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/09 , G11B27/19 , G11B27/30 , G11B17/22
CPC分类号： G11B7/24082 , G11B27/19 , G11B27/3027 , G11B7/0903 , G11B7/0938
摘要： In a method for reproducing an optical disk of the present invention, address information of an optical disk, provided with tracking guides composed of (1) a wobbling groove wobbled in accordance with address information and (2) a normal groove which is not wobbled, is reproduced. The wobbling groove and the normal groove are alternately provided in a radius direction of the optical disk. When carrying out recording and reproducing of the optical disk, three beams composed of one main beam and two sub beams are used. The three beams are projected so that (a) the sub beams are respectively on the wobbling groove and the normal groove and (b) the main beam is on a land between the wobbling groove and the normal groove. The address information is found from reflected light of one of the sub beams. The above arrangement allows respective central portions of the sub beams to track the tracking guides. Therefore, even in the case where the optical disk is tilted or vibrated, the sub beams do not deviate totally off the tracking guides, thereby permitting to stably reproduce the address information.
摘要翻译：在本发明的再现光盘的方法中，具有由（1）根据地址信息摆动的摆动槽和（2）未摆动的正常槽构成的跟踪引导件的光盘的地址信息，被转载。在光盘的半径方向交替设置摆动槽和法线槽。当执行光盘的记录和再现时，使用由一个主光束和两个子光束组成的三个光束。这三个光束被投影，使得（a）子光束分别位于摆动槽和普通槽上，（b）主光束位于摆动槽和正常槽之间的焊盘上。从一个子光束的反射光中找到地址信息。上述布置允许子光束的各个中心部分跟踪跟踪引导件。因此，即使在光盘倾斜或振动的情况下，子光束也不完全偏离跟踪引导件，从而允许稳定地再现地址信息。

9. 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。

10. 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。

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