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1. 发明授权

US06975578B2 Optical recording medium with grooves, optical recording medium master with grooves, apparatus for manufacturing optical recording medium master with grooves, and optical recording/reproducing apparatus 失效
标题翻译：具有凹槽的光学记录介质，具有凹槽的光学记录介质主体，用于制造具有凹槽的光学记录介质主体的设备和光学记录/再现设备
公开(公告)号：US06975578B2
公开(公告)日：2005-12-13
申请号：US10250684
申请日：2002-01-18
申请人： Sohmei Endoh , Katsuhiko Ohtomo , Ikuhiro Hideta
发明人： Sohmei Endoh , Katsuhiko Ohtomo , Ikuhiro Hideta
IPC分类号： G11B7/24 , G11B7/0045 , G11B7/007 , G11B7/09 , G11B7/26 , G11B11/105 , G11B7/00
CPC分类号： G11B7/24082 , G11B7/007 , G11B7/00718 , G11B7/261 , G11B11/10578
摘要： The stable reproduction of wobble signal without generating beats despite of an improvement in recording density by narrowing a track pitch is realized. Data by magnetooptical recording is recorded on wobbling grooves and lands between adjacent wobbling grooves. The wobbling grooves are provided to wobble both sides of the grooves in different amplitudes. Further, both the sides wobbled in different amplitudes are wobbled in phase in the track direction. These different amplitudes of both sides are preferably set to 3.3 to 40%.
摘要翻译：实现摆动信号的稳定再现，而不产生节拍，尽管通过缩小轨道间距来提高记录密度。通过磁光记录的数据记录在相邻摆动槽之间的摆动槽和平台上。提供摆动槽以不同的振幅摆动槽的两侧。此外，摆动在不同幅度的两个侧面在轨道方向上相位摆动。两侧的这些不同振幅优选设定为3.3〜40％。

2. 发明授权

US08154981B2 Record medium, its manufacturing method, mother disc for record medium, and its manufacturing method 有权
标题翻译：记录介质，其制造方法，记录介质的母盘及其制造方法
公开(公告)号：US08154981B2
公开(公告)日：2012-04-10
申请号：US11813746
申请日：2006-11-16
申请人： Sohmei Endoh , Takahiro Igari , Makoto Watanabe , Hiroyuki Takemoto , Tadao Suzuki , Katsuhiko Ohtomo , Yuko Asano , Hiroshi Nakayama
发明人： Sohmei Endoh , Takahiro Igari , Makoto Watanabe , Hiroyuki Takemoto , Tadao Suzuki , Katsuhiko Ohtomo , Yuko Asano , Hiroshi Nakayama
IPC分类号： G11B7/24
CPC分类号： G11B7/243 , G11B7/00736 , G11B7/24038 , G11B7/24079 , G11B7/2534 , G11B7/257 , G11B7/259 , G11B7/261 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： Binary information previously recorded in an innermost rim side area is enabled to be stably reproduced. A record medium is formed by sequentially laminating a first information layer 2, an intermediate layer 3, a second information layer 4, and a cover layer 5 onto a substrate 1. First grooves are previously formed in the innermost rim area of the substrate 1. Second grooves are previously formed in an area where data is recorded. The first grooves are set to be shallower and narrower than the second grooves. Thus, such a situation that a BCA signal is modulated by diffraction due to the grooves can be reduced.
摘要翻译：先前记录在最内边缘区域的二进制信息能够被稳定再现。通过将第一信息层2，中间层3，第二信息层4和覆盖层5依次层叠到基板1上来形成记录介质。预先在基板1的最内边缘区域中形成第一凹槽。预先在记录数据的区域中形成第二凹槽。第一凹槽设置成比第二凹槽更浅和更窄。因此，可以减少BCA信号由于槽而被衍射调制的情况。

3. 发明申请

US20090129252A1 RECORD MEDIUM, ITS MANUFACTURING METHOD, MOTHER DISC FOR RECORD MEDIUM, AND ITS MANUFACTURING METHOD 有权
标题翻译：记录媒体及其制造方法，记录媒体母盘及其制造方法
公开(公告)号：US20090129252A1
公开(公告)日：2009-05-21
申请号：US11813746
申请日：2006-11-16
申请人： Sohmei Endoh , Takahiro Igari , Makoto Watanabe , Hiroyuki Takemoto , Tadao Suzuki , Katsuhiko Ohtomo , Yuko Asano , Hiroshi Nakayama
发明人： Sohmei Endoh , Takahiro Igari , Makoto Watanabe , Hiroyuki Takemoto , Tadao Suzuki , Katsuhiko Ohtomo , Yuko Asano , Hiroshi Nakayama
IPC分类号： G11B7/00 , G03F7/26 , B32B37/06
CPC分类号： G11B7/243 , G11B7/00736 , G11B7/24038 , G11B7/24079 , G11B7/2534 , G11B7/257 , G11B7/259 , G11B7/261 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： Binary information previously recorded in an innermost rim side area is enabled to be stably reproduced. A record medium is formed by sequentially laminating a first information layer 2, an intermediate layer 3, a second information layer 4, and a cover layer 5 onto a substrate 1. First grooves are previously formed in the innermost rim area of the substrate 1. Second grooves are previously formed in an area where data is recorded. The first grooves are set to be shallower and narrower than the second grooves. Thus, such a situation that a BCA signal is modulated by diffraction due to the grooves can be reduced.
摘要翻译：先前记录在最内边缘区域的二进制信息能够被稳定再现。通过将第一信息层2，中间层3，第二信息层4和覆盖层5依次层叠到基板1上来形成记录介质。预先在基板1的最内边缘区域中形成第一凹槽。预先在记录数据的区域中形成第二凹槽。第一凹槽设置成比第二凹槽更浅和更窄。因此，可以减少BCA信号由于槽而被衍射调制的情况。

4. 发明授权

US06487164B1 Optical recording medium capable of assuring sufficient levels of signals required for reading/writing data, and stamper for manufacture of the same 失效
标题翻译：能够确保读取/写入数据所需的足够信号水平的光学记录介质以及用于制造数据的压模
公开(公告)号：US06487164B1
公开(公告)日：2002-11-26
申请号：US09585305
申请日：2000-06-01
申请人： Sohmei Endoh , Manabu Iwai , Katsuhiko Ohtomo , Tomiji Tanaka , Hiroshi Nakayama , Masayoshi Kanno , Masataka Shinoda
发明人： Sohmei Endoh , Manabu Iwai , Katsuhiko Ohtomo , Tomiji Tanaka , Hiroshi Nakayama , Masayoshi Kanno , Masataka Shinoda
IPC分类号： G11B724
CPC分类号： G11B7/24085 , G11B7/007 , G11B7/0938 , G11B7/261 , G11B7/263 , G11B11/10578 , G11B11/10582 , G11B11/10584 , G11B11/10597
摘要： In an optical recording medium having a writable area in which grooves are formed along recording tracks and a read-only area in which pits are formed along the recording tracks, sufficient levels of signals required for data write and read can be assured even with the track pitch reduced for a higher recording density. Assuming that the refractive index of a medium provided extending from a light-incident surface to a surface in which the grooves and pits are formed is n and the wavelength of a light used for data write and read is &lgr;, the grooves and pits has a width within a range of &lgr;/7.5 n to &lgr;/6. On the assumption that the width of each of the grooves formed in the writable area is Wg and the pitch between the recording tracks in the writable area is Tp1, Wg/Tp1 is within a range of 18.4% to 31.1%. When it is assumed that the width of each of the pitches formed in the read-only area is Wp and the pitch between the recording tracks in the read-only area is Tp2, Wp/Tp2 is within a range of 35.7% to 44.3%.
摘要翻译：在具有沿着记录磁道形成凹槽的可写入区域和沿着记录磁道形成凹坑的只读区域的光学记录介质中，即使使用轨道也可以确保数据写入和读取所需的足够的信号水平音高降低，记录密度更高。假设从光入射表面延伸到形成凹槽和凹坑的表面提供的介质的折射率为n，并且用于数据写入和读取的光的波长为amb条，凹槽和凹坑具有 lambd / 7.5 n至lambd / 6范围内的宽度。假设在可写入区域中形成的每个槽的宽度为Wg，并且可写入区域中的记录轨迹之间的间距为Tp1，则Wg / Tp1在18.4％至31.1％的范围内。当假设在只读区域中形成的每个间距的宽度为Wp，并且只读区域中的记录轨道之间的间距为Tp2时，Wp / Tp2在35.7％至44.3％的范围内，。

5. 发明授权

US06349085B1 High density recording medium with pit width to track pitch ratio in the range of 0.4 to 0.55 for push-pull tracking servo control 有权
标题翻译：高密度记录介质，凹坑宽度跟踪间距比在0.4至0.55范围内，用于推挽跟踪伺服控制
公开(公告)号：US06349085B1
公开(公告)日：2002-02-19
申请号：US09354239
申请日：1999-07-16
申请人： Sohmei Endoh , Katsuhiko Ohtomo , Mitsuo Arima
发明人： Sohmei Endoh , Katsuhiko Ohtomo , Mitsuo Arima
IPC分类号： G11B724
CPC分类号： G11B7/24085 , G03F7/0005 , G11B7/007 , G11B7/0901 , G11B7/0938 , G11B7/261 , G11B7/263 , G11B11/10578
摘要： In an optical recording medium having formed along recording tracks thereon pits indicative of information signal, a ratio Pw/Tp where Pw is the width of the pit and Tp is the pitch of the tracks is within a range of 0.4 to 0.55. The push-pull method or differential push-pull method is adopted for tracking servo control of the optical recording medium.
摘要翻译：在沿着记录轨道形成的光记录介质上，其上指示信息信号的凹坑，其中Pw是凹坑的宽度，Tp是轨道的间距的比率Pw / Tp在0.4至0.55的范围内。采用推挽法或差分推挽法来跟踪光记录介质的伺服控制。

6. 发明授权

US5763037A Base for optical recording medium and stamper for manufacturing base of optical recording medium 失效
标题翻译：用于光记录介质制造基座和光记录介质制造基座的基座
公开(公告)号：US5763037A
公开(公告)日：1998-06-09
申请号：US569108
申请日：1995-12-18
申请人： Katsuhiko Ohtomo , Hiroshi Nomura
发明人： Katsuhiko Ohtomo , Hiroshi Nomura
IPC分类号： B29D17/00 , G11B7/007 , G11B7/24 , G11B7/24076 , G11B7/24079 , G11B7/26 , B32B3/00
CPC分类号： G11B7/24076 , B29D17/005 , G11B7/24 , G11B7/24079 , G11B7/261 , G11B7/263 , Y10S428/913 , Y10T428/21
摘要： A stamper for manufacturing a base of an optical disc where grooves having a track pitch of 1.6 .mu.m and width of 1.3 .mu.m or less are formed by using synthetic resin material includes a plurality of projections for forming grooves and a plurality of recessed portions. The plurality of projections have a flat upper portion and a pair of rising portions provided on the both sides of the upper surface portion. The plurality of recessed portions are formed so that bottom surfaces provided continuously to the rising portions of the respective projections become flat. In this case, when width dimension of the rising portion is .epsilon./2, width .epsilon./2 of the rising portion is given by the following expression: 0.05 .mu.m.ltoreq..epsilon./2.ltoreq.0.15 .mu.m
摘要翻译： PCT No.PCT / JP95 / 00733 Sec。 371 1995年12月18日第 102（e）1995年12月18日日期PCT 1995年4月14日提交PCT公布。出版物WO95 / 28705 日期1995年10月26日利用合成树脂材料形成轨道间距为1.6μm，宽度为1.3μm以下的槽的光盘基板的制造用模具包括：多个用于形成槽的突起和多个凹部。多个突起具有设置在上表面部分两侧的平坦的上部和一对上升部分。多个凹部形成为连续地设置在各突起的上升部的底面变平坦。在这种情况下，当上升部分的宽度尺寸为ε/ 2时，上升部分的宽度ε/ 2由以下表达式给出：0.05μm/ε/ 2 0.15μm

7. 发明授权

US5539724A Optical disk having wobbled, discontinuous grooves 失效
标题翻译：具有摆动，不连续凹槽的光盘
公开(公告)号：US5539724A
公开(公告)日：1996-07-23
申请号：US471615
申请日：1995-06-05
申请人： Katsuhiko Ohtomo
发明人： Katsuhiko Ohtomo
IPC分类号： G11B7/007 , G11B7/14 , G11B7/24 , G11B19/247 , G11B19/28 , G11B21/08
CPC分类号： G11B19/28 , G11B19/247 , G11B7/007 , G11B7/14 , G11B7/24082 , G11B7/00745
摘要： A rotation of an optical disk can be controlled with high accuracy to thereby reduce a rotational jitter, whereby a buffer area between sectors can be reduced to increase a storage capacity of the optical disk. In an optical disk in which a track (3) defined by a groove (2) is formed on a rotational base plate and a recording pit (4) corresponding to information is formed on the track (3) in a multi-channel fashion, the groove (2) is formed as a pattern which is fine wobbled in the optical disk radiation direction shown by an arrow (r) and address information (9) of the track (3) is provided in the groove (2).
摘要翻译：可以高精度地控制光盘的旋转，从而降低旋转抖动，从而可以减小扇区之间的缓冲区域，以增加光盘的存储容量。在以多通道方式在轨道（3）上形成有由凹槽（2）限定的旋转基板上的轨道（3）和对应于信息的记录凹坑（4）的光盘中，凹槽（2）形成为在箭头（r）所示的光盘辐射方向上精细摆动的图案，并且在凹槽（2）中设置轨道（3）的地址信息（9）。

8. 发明授权

US5715223A Method of measuring a deviation between a centerline between grooves and a control prepit pattern on a disc 失效
标题翻译：测量凹槽之间的中心线与盘上的控制预凹坑图案之间的偏差的方法
公开(公告)号：US5715223A
公开(公告)日：1998-02-03
申请号：US78184
申请日：1993-06-16
申请人： Katsuhiko Ohtomo
发明人： Katsuhiko Ohtomo
IPC分类号： G01J1/00 , G11B7/00 , G11B7/005 , G11B7/09 , G11B7/26
CPC分类号： G11B7/26 , G11B7/0938
摘要： A method for measuring a deviation between the centerline between grooves defined on both sides of a recording track of an optical disc of a sample servo tracking system and a control prepit pattern formed on the disc is disclosed. If the modulation indices of the wobbled pits are measured under continuous tracking control of the center region or land, a difference is produced in the modulation indices when there is a deviation between the center of the wobbled pits and the center of the grooves. If, under tracking control of the grooves, the tracking offset is adjusted so that the modulation indices of the wobbled pits are equal to each other, the tracking error signal has an offset quantity (DC component). A light beam is swept under tracking control of the land between the grooves and the deviation between the center of the grooves and the control prepit pattern is measured. The light beam is swept so that the playback outputs from the wobbles pits are equal to each other and the deviation between the control prepit pattern and the center of the grooves is measured by a tracking error signal of the land between the grooves.
摘要翻译： PCT No.PCT / JP92 / 01412 Sec。 371日期：1993年6月16日 102（e）日期1993年6月16日PCT提交1992年10月30日PCT公布。出版物WO93 / 09536 日期：1993年5月13日公开了一种用于测量在样品伺服跟踪系统的光盘的记录轨道的两侧限定的凹槽之间的中心线和形成在盘上的控制预凹坑图案之间的偏差的方法。如果在中心区域或平台的连续跟踪控制下测量摆动凹坑的调制指数，则当波动凹坑的中心与凹槽的中心之间存在偏差时，调制指数产生差异。如果在凹槽的跟踪控制下调整跟踪偏移，使得摆动凹坑的调制指数彼此相等，则跟踪误差信号具有偏移量（DC分量）。在凹槽之间的平台的跟踪控制下扫描光束，并且测量凹槽的中心和控制预凹坑图案之间的偏差。扫描光束使得摆动凹坑的重放输出彼此相等，并且通过凹槽之间的平台的跟踪误差信号来测量控制预凹坑图案与凹槽中心之间的偏差。

9. 发明授权

US5838654A Optical recording medium having a specified range of pit widths and pit depths 失效
标题翻译：具有指定范围的凹坑宽度和凹坑深度的光学记录介质
公开(公告)号：US5838654A
公开(公告)日：1998-11-17
申请号：US851477
申请日：1997-05-05
申请人： Masaki Kagawa , Katsuhiko Ohtomo
发明人： Masaki Kagawa , Katsuhiko Ohtomo
IPC分类号： G11B7/24 , G11B7/004 , G11B7/013 , G11B7/09 , G11B11/105 , G11B20/10
CPC分类号： G11B7/24085 , G11B20/10009 , G11B7/0938 , G11B11/10578 , G11B7/004
摘要： Even if grooves are, in order to improve productivity, omitted from an optical recording medium having pits indicating information signals formed in at least a portion of recording tracks of the optical recording medium, signals having satisfactorily high levels required to perform tracking control are attempted to be obtained. The number of regions of the recording tracks in which the pits are formed is made to be larger than the number of regions in which no pit is formed. Specifically, since "0" has higher appearance probability than "1" in a case of a binary information signal consisting of "0" and "1", pits are formed at positions corresponding to "0" of the information signal.
摘要翻译：即使凹槽为了提高生产率，从具有指示形成在光记录介质的记录轨道的至少一部分上的信息信号的凹坑的光记录介质中省略，尝试执行跟踪控制所需的令人满意的高水平的信号得到。形成凹坑的记录轨道的区域的数量大于不形成凹坑的区域的数量。具体地，由于在由“0”和“1”组成的二进制信息信号的情况下，“0”的出现概率高于“1”，所以在与信息信号的“0”相对应的位置处形成凹坑。

10. 发明授权

US5822294A Optical recording medium having a specified range of pit widths and pit depths 失效
标题翻译：具有指定范围的凹坑宽度和凹坑深度的光学记录介质
公开(公告)号：US5822294A
公开(公告)日：1998-10-13
申请号：US811773
申请日：1997-03-06
申请人： Katsuhiko Ohtomo , Masaki Kagawa , Hiroshi Nomura , Hiroyuki Takemoto
发明人： Katsuhiko Ohtomo , Masaki Kagawa , Hiroshi Nomura , Hiroyuki Takemoto
IPC分类号： G11B7/24 , G11B7/007 , G11B7/013 , G11B7/085 , G11B7/09
CPC分类号： G11B7/24085 , G11B7/007 , G11B7/08541 , G11B7/0901
摘要： An optical recording medium capable of being reproduced by a conventional drive device which meets an optical disk having grooves and no groove in an area in which pits are formed. In the optical recording medium having pits 1 showing information signals in the shape of protruding and recessed parts, it is assumed that the depth t1 of the above mentioned pits t2 of the pits 1 is located within a range of 0.3 to 0.6 .mu.m. Herein, n designates the refractive index of the base of the optical recording medium and designates the wavelength of the light used for reproduction.
摘要翻译：一种光记录介质，能够通过传统的驱动装置进行再现，所述传统驱动装置在形成有凹坑的区域中遇到具有凹槽且没有凹槽的光盘。在具有表示凹凸部形状的信息信号的凹坑1的光记录介质中，假定上述凹坑1的凹坑t2的深度t1位于0.3〜0.6μm的范围内。这里，n表示光记录介质的基底的折射率，表示用于再现的光的波长。

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