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    • 11. 发明授权
    • Information readout method for non mask layer type optical information medium
    • 非掩模层型光信息介质的信息读出方法
    • US07496019B2
    • 2009-02-24
    • US10125476
    • 2002-04-19
    • Takashi KikukawaTatsuya KatoHajime UtsunomiyaHiroshi Shingai
    • Takashi KikukawaTatsuya KatoHajime UtsunomiyaHiroshi Shingai
    • G11B7/0045
    • G11B7/005G11B7/1263G11B7/24
    • An information readout method for an optical information medium comprising an information recording layer having pits or recorded marks representative of information data involves the step of irradiating a laser beam to the information recording layer through an objective lens for providing readings of the pits or recorded marks. When the laser beam has a wavelength λ of 400 to 410 nm, the objective lens has a numerical aperture NA of 0.70 to 0.85, and the pits or recorded marks have a minimum size PL of up to 0.36λ/NA, readout is carried out at a power Pr of at least 0.4 mW for the laser beam. When the laser beam has a wavelength λ of 630 to 670 nm, the objective lens has a numerical aperture NA of 0.60 to 0.65, and the pits or recorded marks have a minimum size PL of up to 0.36λ/NA, readout is carried out at a power Pr of at least 1.0 mW for the laser beam. Pits or recorded marks of a size approximate to the resolution limit determined by diffraction can be read out at a high C/N.
    • 包括具有表示信息数据的凹坑或记录标记的信息记录层的光信息介质的信息读出方法包括通过用于提供凹坑或记录标记的读数的物镜将激光束照射到信息记录层的步骤。 当激光束具有400至410nm的波长λ时,物镜的数值孔径NA为0.70至0.85,并且凹坑或记录标记具有高达0.36λ/ NA的最小尺寸PL,读出被执行 在激光束的功率Pr为至少0.4mW。 当激光束具有630至670nm的波长λ时,物镜的数值孔径NA为0.60至0.65,并且凹坑或记录的标记具有高达0.36λ/ NA的最小尺寸PL,读出被执行 在激光束的功率Pr为至少1.0mW。 通过衍射确定的大小接近分辨率极限的刻痕或记录标记可以高C / N读出。
    • 12. 发明授权
    • Method of testing optical information medium
    • 光信息媒体测试方法
    • US07484400B2
    • 2009-02-03
    • US10547787
    • 2004-03-04
    • Naoki HayashidaTatsuya KatoKazushi Tanaka
    • Naoki HayashidaTatsuya KatoKazushi Tanaka
    • G01N3/56B32B3/02
    • G11B23/0021G11B7/268Y10T428/21
    • A testing method capable of quantifying abrasion resistance on the translucent base surface of a high-recording-density optical information medium simply and in a form of reflecting an actual application environment, and judging criteria appropriate for the testing method. When an evaluation test in terms of abrasion resistance on a laser beam incident-side surface is conducted on an optical information medium to and/or from which recording and/or reproducing is made by a laser beam shone into an information recording layer from a translucent base side, and which has the focused radius R, of a recording/reproducing laser beam on the translucent base surface, of 40-400 μm, defined by the following expression (1) R=2T tan [sin−1 (NA/n)](1) (in the expression, T is the thickness (μm) of the translucent base, NA numerical aperture of an object lens in the recording/reproducing device, and n refractive index of the translucent base), the abrasion resistance on a laser beam incident-side surface is evaluated based on the error amount of a reproduction signal after a laser beam incident-side surface is abraded by an abrasion wheel specified in ISO9352.
    • 能够简单地以反映实际应用环境的形式来量化高记录密度光学信息介质的半透明基面上的耐磨性的测试方法,以及适用于测试方法的判断标准。 当在激光束入射侧表面上的耐磨性的评价试验在由光学信息介质进行和/或从哪个记录和/或再现由激光束照射到信息记录层中的半透明 (1)定义的40-400μm的记录/再现激光束的焦点半径R,由下式(1)定义:R = 2T tan [sin-1(NA / n )](1)(在表达式中,T是半透明基底的厚度(母体),记录/再现装置中的物镜的NA数值孔径,以及半透明基底的n折射率),耐磨损性 基于由ISO9352中规定的磨轮磨损激光束入射侧表面之后的再生信号的误差量来评价激光束入射侧面。
    • 16. 发明授权
    • Processing method for photoresist master, production method for recording medium-use mater, production method for recording medium, photoresist master, recording medium-use master and recording medium
    • 用于处理光致抗蚀剂涂覆的玻璃板的方法,用于制造用于记录介质的压模的方法,记录介质的制造方法,光致抗蚀剂涂覆的玻璃板,用于记录介质的压模和记录介质
    • US07297472B2
    • 2007-11-20
    • US10507429
    • 2003-03-10
    • Hisaji OyakeTatsuya KatoHajime UtsunomiyaMasanori ShibaharaKenji Yoneyama
    • Hisaji OyakeTatsuya KatoHajime UtsunomiyaMasanori ShibaharaKenji Yoneyama
    • G11B7/45G11B7/26
    • G11B7/261B23K26/0622B23K26/0823B23K26/0869B23K26/40B23K2103/50G03F7/70383G11B7/00456G11B7/24085G11B7/263G11B23/0085Y10S430/146Y10T428/24355Y10T428/31504
    • The present invention relates to a method for processing a photoresist-coated board, a method for manufacturing a stamper for a recording medium and a method for manufacturing a recording medium which can form a fine raised and depressed pattern having a uniform width after development even in the case where a laser beam having a relatively long wavelength is used for forming pre-pits on a recording medium with high accuracy. A photoresist-coated board 108 is constituted by laminating a light absorption layer 108b and a photosensitive material layer 108c on a glass substrate 108a in this order and is exposed to a laser beam 102 by condensing the laser beam 102 onto the photosensitive material layer 108c, thereby forming a raised and depressed pattern corresponding to pre-pits on the the photosensitive material layer 108. When the length of a pre-pit to be formed is shorter than 4 T, for example, the duty ratio of the pulse signal train input to the light modulator 109 is varied within a range from about 50% to 65% so that a pulse signal train having a higher duty ratio is generated as the length of a pre-pit to be formed becomes longer and the power of a laser beam is modulated by the thus generated pulse signal train. On the other hand, when the length of a pre-pit to be formed is equal to or longer than 4 T, for example, a pulse signal train having a constant duty ratio is generated independently of the length of the pre-pit to be formed and the power of a laser beam is modulated by the thus generated pulse signal train.
    • 本发明涉及一种用于处理光刻胶涂覆板的方法,一种用于制造用于记录介质的压模的方法和一种用于制造记录介质的方法,该记录介质可以在显影后形成具有均匀宽度的细微凸起和凹陷图案, 使用具有较长波长的激光束以高精度在记录介质上形成预凹坑的情况。 通过将光吸收层108b和感光材料层108c依次层叠在玻璃基板108a上并通过将激光束102聚光到感光材料上而暴露于激光束102而构成光刻胶层108 层108c,从而形成对应于感光材料层108上的预凹坑的凸起和凹陷图案。 当要形成的预制凹坑的长度短于4T时,例如,输入到光调制器109的脉冲信号序列的占空比在约50%至65%的范围内变化,使得脉冲 随着要形成的预制凹坑的长度变长,激光束的功率由如此产生的脉冲信号列调制,产生具有较高占空比的信号序列。 另一方面,当要形成的预制凹坑的长度等于或大于4T时,例如,产生具有恒定占空比的脉冲信号序列,独立于预制凹坑的长度 形成的激光束的功率由如此产生的脉冲信号串调制。
    • 18. 发明授权
    • Method of recording information in optical recording medium, information recording apparatus and optical recording medium
    • 在光学记录介质,信息记录装置和光学记录介质中记录信息的方法
    • US07227826B2
    • 2007-06-05
    • US10503954
    • 2003-02-14
    • Hideaki MiuraTatsuya KatoTetsuro Mizushima
    • Hideaki MiuraTatsuya KatoTetsuro Mizushima
    • G11B3/74
    • G11B7/24038G11B7/006G11B7/0062G11B2007/0013
    • It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers whereby a sufficiently high erasing efficiency can be ensured when data recorded in any one of the information recording layers are directly overwritten. In the information recording method according to the present invention, information is recorded in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam thereonto via a light incidence plane 13a. In the case where information is to be recorded in the optical recording medium 10, information is recorded in the L0 layer 20 using an off-pulse recording format and information is recorded in the L1 layer 30 using an on-pulse recording format. As a result, even in the case of directly overwriting data recorded in either of the L0 layer 20 or the L1 layer 30, a sufficiently high erasing efficiency can be ensured.
    • 本发明的目的是提供一种用于在具有多个信息记录层的数据可重写型光学记录介质中记录信息的信息记录方法,从而当记录在任一信息中的数据时可以确保足够高的擦除效率 记录层被直接覆盖。 在根据本发明的信息记录方法中,通过经由光入射平面13a将投射激光束的信息记录在具有至少层叠的L 0层20和L 1层30的光学记录介质10中。 在要记录在光学记录介质10中的信息的情况下,使用截止脉冲记录格式将信息记录在L 0层20中,并且使用脉冲记录格式将信息记录在L 1层30中。 结果,即使在直接覆盖记录在L 0层20或L1层30中的任何一个的情况下,也能够确保足够高的擦除效率。
    • 19. 发明申请
    • Sticking tool
    • 粘贴工具
    • US20070031073A1
    • 2007-02-08
    • US11488790
    • 2006-07-19
    • Kousuke KatoKuniyuki YonekuraTatsuya Kato
    • Kousuke KatoKuniyuki YonekuraTatsuya Kato
    • F16C27/00
    • B42F3/006Y10T156/1763Y10T156/1785Y10T156/18
    • This invention provides a sticking tool capable of sticking a sticking matter to a sticking target position easily and accurately and executing the sticking operation smoothly. This sticking tool includes a casing body 2, a sticking tool main body 3 which is moved in the direction of being projected from and submerged into the casing body 2 by a pressing force F1 applied at the time of sticking operation so as to stick a patch P to the peripheral portion Xb of a punch hole Xa and an alignment portion 7 for determining a relative position of the sticking tool main body 3 to the punch hole Xa and the alignment portion 7 is so constructed to be capable of moving between an overlapping position (Q) which substantially overlaps the peripheral portion Xb of the punch hole Xa and a retraction position (R) not interfering with the sticking tool main body 3 and paper X.
    • 本发明提供一种能够容易且准确地将粘着物粘贴到粘贴目标位置的粘贴工具,并且顺利地执行粘贴操作。 这种粘贴工具包括壳体主体2,粘贴工具主体3,其通过在粘贴操作时施加的按压力F 1从突出并浸没在壳体2中的方向移动以粘贴 用于确定打孔工具主体3与冲孔Xa和对准部7的相对位置的打孔孔Xa的周边部分Xb和对准部分7的贴片P构造成能够在重叠 基本上与冲孔Xa的周边部分Xb重叠的位置(Q)和不与粘着工具主体3和纸张X干涉的收回位置(R)。
    • 20. 发明授权
    • Method for recording information on optical recording medium, information recorder, and optical recording medium
    • 用于在光学记录介质,信息记录器和光学记录介质上记录信息的方法
    • US07167431B2
    • 2007-01-23
    • US10504442
    • 2003-02-14
    • Hideaki MiuraTatsuya Kato
    • Hideaki MiuraTatsuya Kato
    • G11B5/09G11B7/00
    • G11B7/006G11B7/0062G11B7/00718G11B2007/0013
    • It is an object of the present invention to provide an information recording method for recording information in a data rewritable type optical recording medium having a plurality of information recording layers, which can form recording marks having good shapes. In the information recording method according to the present invention, a plurality of recording marks selected from a group consisting of several types of recording marks with different lengths each corresponding to an integral multiple of a clock cycle T are formed in an optical recording medium 10 having at least a stacked L0 layer 20 and L1 layer 30 by projecting a laser beam thereonto via a light incidence plane 13a and the number of pulses of the laser beam to be projected onto the L0 layer 20 when at least one type of the recording mark among the several types of recording marks is formed therein is set to be smaller than the number of pulses of the laser beam to be projected onto the L1 layer 30 when the at least one type of the recording mark is formed therein.
    • 本发明的目的是提供一种用于在具有多个信息记录层的数据可重写型光学记录介质中记录信息的信息记录方法,其可以形成具有良好形状的记录标记。 在根据本发明的信息记录方法中,在具有对应于时钟周期T的整数倍的不同长度的几种类型的记录标记组成的组中的多个记录标记形成在具有 至少一层堆叠的L0层20和L1层30,当至少一种记录标记类型时,通过将入射平面13a上的激光束投射到待投影到L0层20上的激光束的脉冲数 在其中形成的几种类型的记录标记中,当形成至少一种类型的记录标记时,将其设置为小于要投影到L1层30上的激光束的脉冲数。