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71. 发明授权

US08094543B2 Information recording medium, reproducing apparatus and reproducing method 有权
标题翻译：信息记录介质，再现装置和再现方法
公开(公告)号：US08094543B2
公开(公告)日：2012-01-10
申请号：US12634042
申请日：2009-12-09
申请人： Masahito Nakao , Yasumori Hino , Yoshiaki Komma , Fumitomo Yamasaki , Kousei Sano
发明人： Masahito Nakao , Yasumori Hino , Yoshiaki Komma , Fumitomo Yamasaki , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/005 , G11B7/24038 , G11B7/26
摘要： An information recording medium according to the present invention includes at least three information recording layers. If the readout power of a laser beam in reading information from an information recording layer L(n) is identified by Pw(n), and if the readout power of the laser beam in reading information from an information recording layer L(n+a) is identified by Pw(n+a), then a base thickness between the information recording layers is determined so that the intensity of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n) becomes equal to or lower than that of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n+a).
摘要翻译：根据本发明的信息记录介质包括至少三个信息记录层。如果从信息记录层L（n）读取信息中的激光束的读出功率被Pw（n）识别，并且如果从信息记录层L（n + a）读取信息中的激光束的读出功率）由Pw（n + a）识别，则信息记录层之间的基底厚度被确定为当信息记录层L（n + a）被激光束照射时具有读出功率的光的强度当信息记录层L（n + a）被具有读出功率Pw（n + a）的激光束照射时，Pw（n）变得等于或低于光的光。

72. 再颁专利

USRE42825E1 Optical pickup head device, information recording/reproducing apparatus, and method for recording information 有权
标题翻译：光学拾取头装置，信息记录/再现装置和用于记录信息的方法
公开(公告)号：USRE42825E1
公开(公告)日：2011-10-11
申请号：US11805282
申请日：2007-05-22
申请人： Shin-Ichi Kadowaki , Yoshiaki Komma , Kousei Sano
发明人： Shin-Ichi Kadowaki , Yoshiaki Komma , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/094 , G11B7/0055 , G11B7/0903 , G11B2007/0013
摘要： An optical pickup head device includes a diffraction grating for generating zero-order diffracted light and at least first-order diffracted light and provides a tracking error signal with a DPP method. The diffraction grating includes grating patterns with a nonuniform period or phase. The size of the first-order diffracted light converged on an optical recording medium is larger in the direction parallel to a tangent to the track than in the direction perpendicular to the tangent. P1/P0>PW2/PW1 is established, where PW1 represents the power that is required to record information on the optical recording medium, PW2 represents the maximum power that allows information recorded on the optical recording medium to be reproduced without being erased, P0 represents the light amount of the zero-order diffracted light converged on the optical recording medium, and P1 represents the light amount of the at least first-order diffracted light converged on the optical recording medium. This configuration makes it possible to detect a tracking error signal with reduced offset, even if a recordable optical recording medium having two information recording planes is used.
摘要翻译：光拾取头装置包括用于产生零级衍射光和至少一级衍射光的衍射光栅，并提供具有DPP方法的跟踪误差信号。衍射光栅包括具有不均匀周期或相位的光栅图案。会聚在光学记录介质上的一级衍射光的尺寸在平行于轨道的切线的方向上大于在垂直于切线的方向上的尺寸。 P1 / P0> PW2 / PW1，其中PW1表示在光学记录介质上记录信息所需的功率，PW2表示允许记录在光学记录介质上的信息被再现而不被擦除的最大功率，P0表示零级衍射光的光量会聚在光学记录介质上，P1表示会聚在光学记录介质上的至少一级衍射光的光量。该配置使得即使使用具有两个信息记录平面的可记录光学记录介质，也可以检测具有减小的偏移的跟踪误差信号。

73. 发明申请

US20110170389A1 OPTICAL INFORMATION MEDIUM MEASUREMENT METHOD, OPTICAL INFORMATION METHOD, OPTICAL INFORMATION MEDIUM, RECORDING APPARATUS, AND REPRODUCING APPARATUS 有权
标题翻译：光学信息中度测量方法，光学信息方法，光学信息介质，记录装置和再现装置
公开(公告)号：US20110170389A1
公开(公告)日：2011-07-14
申请号：US13071914
申请日：2011-03-25
申请人： Kousei Sano , Yoshiaki Komma , Yasumori Hino
发明人： Kousei Sano , Yoshiaki Komma , Yasumori Hino
IPC分类号： G11B7/00
CPC分类号： G11B7/268 , G11B7/00375 , G11B2007/0013
摘要： An optical information medium measurement method of the present invention, for measuring a degree of modulation in an optical information medium of a multilayered structure having a plurality of information layers, includes a first step of measuring the modulation degree of each layer of the optical information medium, by use of a measurement optical system, a second step of obtaining a thickness between layers of the optical information medium, a third step of obtaining a reflectance of each layer of the optical information medium, and a fourth step of converting the modulation degree of each layer, the modulation degree being measured in the first step, into a modulation degree at a reference optical system differing from the measurement optical system, based on a value indicative of the thickness between layers, the thickness being obtained in the second step, and a value indicative of the reflectance of each layer, the reflectance being obtained in the third step.
摘要翻译：本发明的光信息介质测量方法，用于测量具有多个信息层的多层结构的光信息介质中的调制度，包括测量光信息介质的每一层的调制度的第一步骤通过使用测量光学系统，获得光学信息介质的层之间的厚度的第二步骤，获得光学信息介质的每一层的反射率的第三步骤和转换光信息介质的调制度的第四步骤基于表示层之间的厚度的值，在第二步骤中获得的厚度和在第一步骤中获得的厚度，将在第一步骤中测量的调制度调整为与测量光学系统不同的参考光学系统的调制度，以及表示每层的反射率的值，第三步骤中得到的反射率。

74. 发明申请

US20090268588A1 OPTICAL HEAD, OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE, AND OPTICAL INFORMATION SYSTEM DEVICE 有权
标题翻译：光头，光信息记录和再现设备以及光信息系统设备
公开(公告)号：US20090268588A1
公开(公告)日：2009-10-29
申请号：US12517676
申请日：2007-12-04
申请人： Hideki Aikoh , Makoto Takashima , Eishin Mori , Kousei Sano , Joji Anzai , Kenichi Shinotani
发明人： Hideki Aikoh , Makoto Takashima , Eishin Mori , Kousei Sano , Joji Anzai , Kenichi Shinotani
IPC分类号： G11B7/00 , C08G77/12
CPC分类号： H01L31/0203 , C08G77/045 , C08G77/12 , C08G77/20 , G02B1/043 , G11B7/1378 , G11B7/1381 , H01L24/73 , H01L31/02325 , H01L2224/32245 , H01L2224/48091 , H01L2224/48247 , H01L2224/73265 , H01L2924/14 , H01L2924/16195 , H01L2924/181 , C08L83/04 , H01L2924/00014 , H01L2924/00012 , H01L2924/00
摘要： An object of the invention is to provide an optical element for use in an optical information recording and reproducing device or a like device for recording or reproducing information with respect to an information recording medium using laser light, wherein the optical element is a resin optical element capable of suppressing lowering in transmittance due to deterioration by irradiation of light having a high energy density, and maintaining a high transmittance for a long time. To realize the above object, used is an optical element made of a silicon resin cured material obtained by subjecting a silicon resin composition containing a silsesquioxane compound to a curing treatment.
摘要翻译：本发明的目的是提供一种用于光信息记录和再现装置或类似装置中用于使用激光对信息记录介质进行信息记录或再现的光学元件，其中光学元件是树脂光学元件能够抑制由于能量密度高的光的照射而导致的透光率降低，并且能够长期保持高透射率。为了实现上述目的，使用由含有倍半硅氧烷化合物的硅树脂组合物进行固化处理得到的硅树脂固化物制成的光学元件。

75. 发明授权

US07558170B2 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
标题翻译：光学拾取头，光学信息装置和光学信息再现方法
公开(公告)号：US07558170B2
公开(公告)日：2009-07-07
申请号：US11981366
申请日：2007-10-31
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.
摘要翻译：本发明的光信息装置包括：光拾取头，包括：光源; 衍射单位; 冷凝单元; 分束器; 光检测器; 和跟踪误差信号发生器。光记录介质具有基本上以恒定间距布置的轨道。平均音高是tp。当主光束被放置在轨道上时，第一子光束和第二子光束被放置在轨道之间。跟踪误差信号发生器对从接收主波束的光接收部分输出的信号执行差分运算，产生第一推挽信号，对从光接收部分输出的信号执行差分运算接收第一子光束和第二子光束以产生第二推挽信号，并且相对于第一推挽信号和第二推挽信号执行差分算术运算以产生跟踪误差信号，当在与光记录介质的轨道正交的方向上扫描光束时，以间距tp获得的第一推挽信号的幅度波动的情况。

76. 发明授权

US07542382B2 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
公开(公告)号：US07542382B2
公开(公告)日：2009-06-02
申请号：US11981236
申请日：2007-10-31
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.

77. 发明授权

US07463561B2 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
公开(公告)号：US07463561B2
公开(公告)日：2008-12-09
申请号：US11789078
申请日：2007-04-23
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.

78. 发明申请

US20080109837A1 Optical recording medium, information recording or reproducing method, and information recording or reproducing apparatus 审中-公开
标题翻译：光记录介质，信息记录或再现方法以及信息记录或再现装置
公开(公告)号：US20080109837A1
公开(公告)日：2008-05-08
申请号：US11907186
申请日：2007-10-10
申请人： Joji Anzai , Hideki Aikoh , Kousei Sano , Eishin Mori
发明人： Joji Anzai , Hideki Aikoh , Kousei Sano , Eishin Mori
IPC分类号： G11B7/24
CPC分类号： G11B7/13927 , G11B7/0948 , G11B7/24038
摘要： An optical recording medium improves the quality of servo signals and readout signals by preventing light convergence on the back of the surface of the optical recording medium and reducing interference of light reflected from recording surfaces of the optical recording medium. An optical recording medium 40 includes at least three information recording surfaces, and satisfies d1
摘要翻译：光学记录介质通过防止光记录介质表面背面的光会聚并减少由光记录介质的记录表面反射的光的干扰来提高伺服信号和读出信号的质量。光记录介质40包括至少三个信息记录表面，并且满足d 1 <（d 4 -d 1），其中d 1是从光记录介质40的表面40z到第一信息记录表面40的距离最接近表面40z和d4的距离是从表面40z到距离表面40z最远的第四信息记录表面40d的距离，并且满足dmin> =8μm，其中dmin为所述至少三个信息记录表面之间的最小层间厚度。

79. 发明授权

US07227819B2 Optical pick-up head, optical information apparatus, and optical information reproducing method 有权
标题翻译：光学拾取头，光学信息装置和光学信息再现方法
公开(公告)号：US07227819B2
公开(公告)日：2007-06-05
申请号：US10646602
申请日：2003-08-22
申请人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
发明人： Shin-ichi Kadowaki , Kousei Sano , Akihiro Arai , Katsuhiko Yasuda , Tomotada Kamei , Hiroaki Yamamoto , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0903 , G11B7/0941 , G11B7/0943 , G11B7/0948 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical information apparatus of the present invention includes: an optical pick-up head including: a light source; a diffraction unit; a condensing unit; a beam splitter; a photodetector; and a tracking error signal generator. An optical recording medium has tracks arranged substantially at a constant pitch. An average of a pitch is tp. When a main beam is placed on the track, a first sub-beam and a second sub-beam are placed between the tracks. The tracking error signal generator performs a differential arithmetic operation with respect to signals output from a light-receiving portion receiving the main beam to generate a first push-pull signal, performs a differential arithmetic operation with respect to signals output from the light-receiving portions receiving the first sub-beam and the second sub-beam to generate a second push-pull signal, and performs a differential arithmetic operation with respect to the first push-pull signal and the second push-pull signal to generate a tracking error signal, in a case where an amplitude of the first push-pull signal obtained at the pitch tp is fluctuated when the light beam is scanned in a direction orthogonal to the tracks of the optical recording medium.
摘要翻译：本发明的光信息装置包括：光拾取头，包括：光源; 衍射单位; 冷凝单元; 分束器; 光检测器; 和跟踪误差信号发生器。光记录介质具有基本上以恒定间距布置的轨道。平均音高是tp。当主光束被放置在轨道上时，第一子光束和第二子光束被放置在轨道之间。跟踪误差信号发生器对从接收主波束的光接收部分输出的信号执行差分运算，产生第一推挽信号，对从光接收部分输出的信号执行差分运算接收第一子光束和第二子光束以产生第二推挽信号，并且相对于第一推挽信号和第二推挽信号执行差分算术运算以产生跟踪误差信号，当在与光记录介质的轨道正交的方向上扫描光束时，以间距tp获得的第一推挽信号的幅度波动的情况。

80. 发明授权

US06980489B2 INFORMATION RECORDING/REPRODUCING APPARATUS FOR RECORDING/REPRODUCING INFORMATION WITH RESPECT TO INFORMATION STORING MEDIUM WITH GUIDE TRACKS AND INFORMATION TRACKS, AND TRACKING METHOD USING THE INFORMATION STORING MEDIUM 有权
标题翻译：用于使用指南轨迹和信息跟踪记录/再现信息存储介质的信息记录/再现装置以及使用信息存储介质的跟踪方法
公开(公告)号：US06980489B2
公开(公告)日：2005-12-27
申请号：US10421019
申请日：2003-04-21
申请人： Kousei Sano , Shin-ichi Kadowaki
发明人： Kousei Sano , Shin-ichi Kadowaki
IPC分类号： G11B5/584 , G11B5/78 , G11B5/82 , G11B7/09 , G11B11/105 , G11B15/60 , G11B11/00 , G11B7/24
CPC分类号： G11B15/602 , G11B5/584 , G11B5/78 , G11B5/82 , G11B7/0938 , G11B11/10578
摘要： A magnetic tape has a guide track for optically obtaining a tracking signal and an independent information track for storing information. The magnetic tape is partitioned into different kinds of zones. The guide tracks are provided with grooves or pits serving as tracking marks, and the tracking marks are selectively located in the zones depending on the kind of zone. Thus, the track spacing of the guide tracks in each zone can be increased, so that a tracking control can be performed for a high density recording medium without reducing the spot size of the light.
摘要翻译：磁带具有用于光学获得跟踪信号的引导轨道和用于存储信息的独立信息轨迹。磁带被分割成不同种类的区域。引导轨道设置有用作跟踪标记的凹槽或凹坑，并且跟踪标记根据区域的种类选择性地位于区域中。因此，可以增加每个区域中的导轨的轨道间隔，使得可以对高密度记录介质执行跟踪控制，而不会减小光的斑点尺寸。

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