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61. 发明申请

US20070036933A1 Recording method, master for optical disk, and optical recording medium 失效
标题翻译：记录方法，光盘主机和光记录介质
公开(公告)号：US20070036933A1
公开(公告)日：2007-02-15
申请号：US11495427
申请日：2006-07-28
申请人： Sohmei Endoh , Noriyuki Saito , Takahiro Igari , Takeshi Gouko , Shinji Minegishi , Eijiro Kikuno
发明人： Sohmei Endoh , Noriyuki Saito , Takahiro Igari , Takeshi Gouko , Shinji Minegishi , Eijiro Kikuno
IPC分类号： B32B3/02
CPC分类号： G11B7/00456 , G11B7/243 , G11B7/253 , G11B7/261 , G11B2007/24306 , G11B2007/2432 , Y10T428/21
摘要： A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
摘要翻译：将由过渡金属的不完全氧化物制成的无机抗蚀剂作为膜形成在基板上，并且通过曝光在无机抗蚀剂上形成与凹坑相对应的潜像的记录方法。曝光由激光束进行，该激光束的强度已被脉冲信号调制，脉冲信号的脉冲高度在凹坑的长度方向上的后部减小，从而形成比记录光束直径小的轨道间距（轨道间距 /曝光光束直径= 0.333〜0.833）。

62. 发明授权

US07065023B2 Light spot advancing direction judging device and method, optical head device control device and method, and optical disk recording/reproducing device 失效
标题翻译：光点前进方向判断装置和方法，光头装置控制装置和方法以及光盘记录/再现装置
公开(公告)号：US07065023B2
公开(公告)日：2006-06-20
申请号：US10240001
申请日：2002-02-08
申请人： Tomiji Tanaka , Shinichi Nakao , Sohmei Endoh , Tamotsu Ishii
发明人： Tomiji Tanaka , Shinichi Nakao , Sohmei Endoh , Tamotsu Ishii
IPC分类号： G11B7/00
CPC分类号： G11B11/10563 , G11B7/08505 , G11B7/0903 , G11B7/0943 , G11B7/24079 , G11B11/10576
摘要： A device and a method for judging the radial moving direction of light spots formed on the signal recording surface of an optical disc having grooves of two types, which are different from each other in terms of depth and which are arranged along a recording track that is a land of the optical disc. The judging section of the device judges the moving direction of the main spot on the basis of binarized data of a difference signal of the main spot and binarized data of a difference signal of one of spots on the side. With this arrangement, the moving direction of the light spots relative to a radial direction of the optical disc can be determined only by using difference signals without using any sum signal.
摘要翻译：一种用于判断形成在光盘的信号记录表面上的光斑的径向移动方向的装置和方法，该光盘具有在深度方面彼此不同的两种凹槽，并且沿着记录轨迹布置光盘的一片土地。设备的判断部分基于主点的差分信号的二值化数据和侧面中的一个点的差分信号的二值化数据来判断主点的移动方向。通过这种布置，光斑相对于光盘的径向方向的移动方向只能通过使用差信号而不使用任何和信号来确定。

63. 发明授权

US06999405B2 Optical recording medium, master disc for the preparation of the optical recording medium and optical recording and/or reproducing apparatus 失效
公开(公告)号：US06999405B2
公开(公告)日：2006-02-14
申请号：US10823614
申请日：2004-04-14
申请人： Sohmei Endoh
发明人： Sohmei Endoh
IPC分类号： G11B7/24
CPC分类号： G11B7/007 , G11B7/08505 , G11B7/0901 , G11B7/261 , G11B11/10578
摘要： An optical recording medium used as a recording medium for information signals in which, in forming a groove along a recording track, a first groove and a second groove are formed to a first depth x to describe a double helix and a third groove having a second depth y shallower than the first depth x is formed between the first and second groves describing double helices. By setting the phase depths of these grooves to a pre-set range, signals required for tracking servo or seek are obtained to sufficient levels to realize stable tracking servo and seek.

64. 发明申请

US20060007839A1 OPTICAL RECORDING MEDIUM AND MASTER DISC FOR MANUFACTURING OPTICAL RECORDING MEDIUM 审中-公开
标题翻译：用于制造光学记录介质的光学记录介质和主光盘
公开(公告)号：US20060007839A1
公开(公告)日：2006-01-12
申请号：US11218481
申请日：2005-09-06
申请人： Sohmei Endoh , Ayumi Konishi
发明人： Sohmei Endoh , Ayumi Konishi
IPC分类号： G11B7/135 , G11B7/00
CPC分类号： G11B7/128 , G11B7/00 , G11B7/007 , G11B7/135 , G11B7/24079 , G11B7/24085 , G11B7/261
摘要： An optical recording medium allowing high-density recording, where a groove having a shallow U-shaped cross section wider than certain width, a master for manufacturing optical recording medium, a manufacturing apparatus thereof, and a manufacturing method thereof are provided. A exposure beam (61) and a exposure beam (62) are recombined together with a first exposure beam (60) in a second PBS (47) so that traveling directions thereof may be the same direction. At this time, the exposure beam (61) and the exposure beam (62) are arranged so that both optical axes may be aligned at certain distance. Thereby, a width of a spot formed by combining these beams can be extended, and light exposure of the spot can be proper to form a shallow groove, as typically showed in FIG. 3.
摘要翻译：提供允许高密度记录的光学记录介质，其中具有宽于一定宽度的浅U形横截面的凹槽，用于制造光学记录介质的主体及其制造装置及其制造方法。曝光光束（61）和曝光光束（62）在第二PBS（47）中与第一曝光光束（60）重新组合在一起，使得其行进方向可以是相同的方向。此时，曝光光束（61）和曝光光束（62）被布置成使得两个光轴可以在一定距离处对准。因此，通过组合这些光束形成的光斑的宽度可以延长，并且光斑的曝光可以适当地形成浅槽，如图1中典型地所示。 3。

65. 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％。

66. 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，。

67. 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。

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