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1. 发明专利

JP2004103183A Optical disk and optical disk device 审中-公开
公开(公告)号：JP2004103183A
公开(公告)日：2004-04-02
申请号：JP2002267275
申请日：2002-09-12
申请人： Sony Corp , Sony Disc Technology Inc , ソニー株式会社 , 株式会社ソニー・ディスクテクノロジー
发明人： TAKEDA MINORU , SAITO KIMIHIRO , FURUKI MOTOHIRO , IMANISHI SHINGO , MASUHARA SHIN , KIKUNO EIJIRO
IPC分类号： G11B7/24 , G11B7/005 , G11B7/007
摘要： PROBLEM TO BE SOLVED: To provide an ROM type optical disk dedicated for high density reproduction which has compatibility with an RAM type optical disk of a similarly high density and can obtain an excellent regenerative signal property. SOLUTION: In the ROM type optical disk, information is reproduced by recording digital information on a substrate 1 in a pit column at a specified track pitch and having a light beam irradiated through an objective lens. The pit 2 is formed into a convex shape towards an entrance side of the light beam to a flat part where the pit is not recorded. Then, when a wavelength of the light beam is λ, the numerical aperture of the objective lens is N.A., the track pitch is TP, an average width of a width of a top face of the convex pit and a width at a bottom part is Pw, a slope width of a side face of the pit is WS, and an optical depth of the pit is d, the compatibility with the RAM type optical disk is possessed and the excellent regenerative signal property is obtained by having equations, 0.6λ/N.A.≤Tp≤0.7λ/N.A. 0.25×Tp≤Pw≤0.5×Tp 0.03×Tp≤WS ≤0.15×Tp 0.1λ≤d≤0.3λ. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003331481A Manufacturing method of optical recording medium 审中-公开
标题翻译：光学记录介质的制造方法
公开(公告)号：JP2003331481A
公开(公告)日：2003-11-21
申请号：JP2002137372
申请日：2002-05-13
申请人： Sony Corp , Sony Disc Technology Inc , ソニー株式会社 , 株式会社ソニー・ディスクテクノロジー
发明人： KIKUNO EIJIRO , AKIYAMA YUJI , MINEMURA KEN , YOSHIMURA HIDEAKI
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of optical recording media capable of simply exfoliating a stamper from a boundary face between the stamper and an intermediate layer made of a transfer member with high accuracy. SOLUTION: The stamper 10 of nearly a disk shape with a center hole formed to the center on one side of which a rugged shape for transferring an optical recording layer is provided, wherein a stepwise or tapered notch 10a is provided to corners of the rugged shape forming side and the inner all of the center hole, is formed, the intermediate layer 15 made of the transfer member and a disk substrate 11 are stacked on the rugged shape forming face of the stamper 10, and the intermediate layer 15 in the stacked state is solidified. Then a gas G with one atmospheric pressure or over is supplied to an air gap V the part of the inner wall of which is the stepwise or tapered notch 10a to exfoliate the stamper 10 from the boundary face between the stamper 10 and the intermediate layer 15 through the action of the gas G. Then the optical recording layer is formed to the rugged shape (15d) forming face of the intermediate layer 15 obtained by the transfer from the stamper 10. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：提供一种光学记录介质的制造方法，其能够简单地从压模和由转印部件制成的中间层之间的边界面以高精度剥离压模。解决方案：提供具有形成在其一侧的中心的中心孔的具有凹凸形状的用于传送光学记录层的近似圆盘形状的压模10，其中，逐步或锥形的切口10a设置在形成凹凸形状侧和内部全部中心孔，由转印构件制成的中间层15和盘基板11堆叠在压模10的粗糙形状形成面上，中间层15在堆叠状态凝固。然后将一个大气压或以上的气体G供应到气隙V，内部壁的一部分是逐步或锥形的切口10a，以从压模10和中间层15之间的边界面剥离压模10 通过气体G的作用，光记录层形成为通过从压模10的转印获得的形成中间层15的表面的凹凸形状（15d）。（C）2004，JPO

3. 发明专利

JP2005017068A Double refraction measuring device and method 有权
$Double refraction measuring device and method$
标题翻译：双重压力测量装置和方法
公开(公告)号：JP2005017068A
公开(公告)日：2005-01-20
申请号：JP2003180918
申请日：2003-06-25
申请人： Sony Disc Technology Inc , 株式会社ソニー・ディスクテクノロジー
发明人： NOJIMA KAZUHISA , FUJITA SHINICHI , KIKUNO EIJIRO
IPC分类号： G01N21/23
摘要： PROBLEM TO BE SOLVED: To provide a double refraction measuring device capable of measuring the main axis highly accurately relative to a light transmission layer having optical anisotropy, and realizing the automatization of measurement.
SOLUTION: This double refraction measuring device is constituted so that an optical disk 6 is irradiated with circularly polarized laser light at an approximately vertical angle to the optical disk 6 surface. As for reflected laser light, only light having a fixed polarization angle is allowed to pass by an analyzer 4, and the light intensity of the passing laser light is detected by a light intensity detector 5. In this case, the analyzer 4 is rotated around the reflection direction of the laser light as an axis, and the passable polarization angle is changed according to the time. Hereby, the acquired light intensity generates a series of waveform data, and the minimum value and the maximum value at each period, and polarization angles when the minimum value and the maximum value are acquired are detected, and the direction of the main axis of the light transmission layer is determined base on the values.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够相对于具有光学各向异性的光透射层高精度地测量主轴并实现测量自动化的双折射测量装置。解决方案：该双折射测量装置被构造成使得光盘6以与光盘6表面大致垂直的角度的圆偏振激光照射。对于反射的激光，只有具有固定的偏振角的光被分析器4通过，并且通过光强度检测器5检测通过的激光的光强度。在这种情况下，分析器4旋转作为轴的激光的反射方向和通过的偏振角根据时间而变化。由此，获取的光强度产生一系列波形数据，并且检测每个周期的最小值和最大值以及当获取最小值和最大值时的偏振角，并且检测主轴的方向光传输层根据值确定。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004022143A Optical disk, and manufacturing method and device therefor 审中-公开
公开(公告)号：JP2004022143A
公开(公告)日：2004-01-22
申请号：JP2002179529
申请日：2002-06-20
申请人： Sony Disc Technology Inc , 株式会社ソニー・ディスクテクノロジー
发明人： KIKUNO EIJIRO , SHIRASAGI TOSHIHIKO
IPC分类号： G11B7/254 , G11B7/24 , G11B7/257 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide an optical disk for supplying favorable recording and reproducing signals and having improved appearance by improving the smoothness of the outermost surface of the light transmitting layer even when the light transmitting layer is made thinner, in the optical disk irradiated with laser light for recording/reproduction from a protective film side having light transmittance. SOLUTION: In the manufacture of the optical disk, a cover layer 3 is stuck on a reflecting layer 2 of a substrate 1, the outermost surface of the cover layer 3 is pressed by using a smooth board 4, and then the cover layer 3 is cured. The optical disk of which the outermost surface of the cover layer 3 is smoothened is manufactured by exfoliating the smooth board 4 after curing. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2005004808A Method of manufacturing optical disk 审中-公开
标题翻译：制造光盘的方法
公开(公告)号：JP2005004808A
公开(公告)日：2005-01-06
申请号：JP2003163964
申请日：2003-06-09
申请人： Sony Disc Technology Inc , 株式会社ソニー・ディスクテクノロジー
发明人： KIKUNO EIJIRO , KAWAI ASAMI , SHIRASAGI TOSHIHIKO , OKAWA NAOKI , YOSHIMURA HIDEAKI
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To form a satisfactory rugged shape on a middle layer in an optical disk having at least two or more information signal layers.
SOLUTION: A first information layer 2 is formed on a substrate 1 and an ultraviolet curing type adhesive sheet 11 is stuck onto the the first information signal layer 2. A heated stamper 21 is pressurized to the ultraviolet curing type adhesive sheet 11. The sheet 11 to which the stamper 21 is pressurized is irradiated with ultraviolet rays. The stamper 21 is exfoliated from the sheet 11 and a middle layer 3 is formed. A second information signal layer 4 is formed on the middle layer 3 and ultraviolet curing resin 12 is applied on the second information signal layer 4 and a light transmissive sheet 13 is placed on the applied ultraviolet curing resin 12. The ultraviolet curing resin 12 is cured by being irradiated with the ultraviolet rays and a protective layer 5 is formed on the second information signal layer 4.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在具有至少两个或更多个信息信号层的光盘中的中间层上形成令人满意的凹凸形状。解决方案：第一信息层2形成在基板1上，并且紫外线固化型粘合片11粘附到第一信息信号层2上。加热的压模21被加压到紫外线固化型粘合片11。用紫外线照射压模21加压的片材11。压模21从片材11剥离，形成中间层3。第二信息信号层4形成在中间层3上，并且紫外线固化树脂12被施加在第二信息信号层4上，并且透光片13被放置在所施加的紫外线固化树脂12上。紫外线固化树脂12被固化通过照射紫外线并在第二信息信号层4上形成保护层5.版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2003228891A METHOD OF MANUFACTURING OPTICAL RECORDING MEDIUM 审中-公开
公开(公告)号：JP2003228891A
公开(公告)日：2003-08-15
申请号：JP2002021644
申请日：2002-01-30
申请人： SONY DISC TECHNOLOGY INC , SONY CORP
发明人： KIKUNO EIJIRO , AKIYAMA YUJI
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical recording method which has ≥2 layers of optical recording layers and can solve the problems of uneven thicknesses, air bubbles, etc., of an intermediate layer arising in consequence of the outer peripheral build-ups, flashes, etc., of a disk substrate. SOLUTION: The medium substrate 10 of approximately a disk shape having a center hole CH at its center is formed and the first optical recording layer 11 is formed on its rugged shape forming surface and the intermediate layer 12 is formed on the upper layer thereof. Next, a stamper 21 which is approximately configured like a disk having a center hole at its center and has a rugged shape in its one surface is laminated on the intermediate layer and is peeled to transfer the rugged shape to the surface of the intermediate layer 12. The stamper 21 having an outer peripheral diameter smaller than the that of the medium substrate 10 and an inner peripheral diameter greater than that of the center hole CH of the medium substrate 10 or the stamper made of a resin having the outer peripheral diameter different from that of the medium substrate and the inner peripheral diameter different from that of the center hole of the medium substrate is used. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2003242694A METHOD FOR MANUFACTURING OPTICAL RECORDING MEDIUM 审中-公开
公开(公告)号：JP2003242694A
公开(公告)日：2003-08-29
申请号：JP2002038583
申请日：2002-02-15
申请人： SONY CORP , SONY DISC TECHNOLOGY INC
发明人： KIKUNO EIJIRO , KISHI SHINSUKE , NAKANO ATSUSHI
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical recording medium for suppressing thickness nonuniformity in the case of spin-coating of resin materials that form an intermediate layer, etc., and suppressing thickness nonuniformity in particular even when sputter flakes exist. SOLUTION: A first substrate which is of an almost disk shape with a center hole at the center and has a recessed and projecting shape on one face is formed. A first optical recording layer is formed on the surface of the first substrate which has the recessed and projecting shape. Resin 21a to form an intermediate layer is supplied to the center part of an almost circular sheet- shaped second substrate 20 with no center hole at the center. Spin-coating is performed, the stamper 22 is pasted together to cure the resin, and the stamper 22 is peeled off to transfer a recessed and projecting shape. A second optical recording layer is formed on the obtained recessed and projecting shape formation surface, and a center hole is opened at the center of the second substrate. The first optical recording layer side of the first substrate and the second optical recording layer side of the second substrate are pasted together with a pasting layer. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2003208737A APPARATUS AND METHOD FOR INSPECTING ECCENTRICITY OF RECORDING DISK MEDIUM 审中-公开
公开(公告)号：JP2003208737A
公开(公告)日：2003-07-25
申请号：JP2002005033
申请日：2002-01-11
申请人： SONY CORP , SONY DISC TECHNOLOGY INC
发明人： TAKAHASHI KAZUYOSHI , KIKUNO EIJIRO
IPC分类号： G11B7/004 , G11B7/085 , G11B7/26 , G11B19/20 , G11B21/10
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for inspecting eccentricity of a recording disk medium capable of detecting both the amount and direction of eccentricity present in the medium. SOLUTION: The apparatus for inspecting eccentricity of a recording medium includes: a rotation drive section 20 for supporting and rotating an optical disk 100 with tracks at a prescribed interval on its signal face 101; an optical pickup 30 placed at a prescribed position with respect to the rotation center of a spindle motor 21 and generating a read signal DS on the basis of the intensity of a returned light of the signal face 101 on which a ray is emitted on the optical disk 100; and a controller 50 acting like an eccentricity detection means that detects the amount and direction of eccentricity of the optical disk 100 on the basis of: relative motion information obtained from the read signal DS resulting from a relative motion in a direction of the interval of tracks between the optical pickup 30 and the optical disk 100 caused by the eccentricity of the rotated optical disk 100; and an origin position signal 25s as rotary angle information of the optical disk 100. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2002015467A OPTICAL DISK AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002015467A
公开(公告)日：2002-01-18
申请号：JP2000196296
申请日：2000-06-26
申请人： SONY DISC TECHNOLOGY INC
发明人： KIKUNO EIJIRO
IPC分类号： G11B7/24 , G11B7/007 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide an optical disk with a visible pattern by multi-gradation and a method for producing the disk. SOLUTION: When the optical disk 10 is obtained, two signal recording layers 12, 13 are successively stacked on one face of a disk substrate 11 and optical transparent materials 14, 15 are disposed between the substrate and the signal recoding layers. First information by variation in the length and position of pits is recorded as a pit array in each of the signal recoding layers, second information by alteration in the shape of the pits is also recorded as visible patterns 12a, 13a in the signal recoding layers and the second information in one of the signal recoding layers and that in the other are overlapped.

10. 发明专利

JP2003187440A TEST EQUIPMENT OF OPTICAL DISK AND INSPECTION METHOD OF OPTICAL DISK 审中-公开
公开(公告)号：JP2003187440A
公开(公告)日：2003-07-04
申请号：JP2001380482
申请日：2001-12-13
申请人： SONY DISC TECHNOLOGY INC
发明人： KIKUNO EIJIRO
IPC分类号： G11B7/004 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide a test equipment of an optical disk and an examination method of the optical disk, by which the consistency between a true value and a measured value can be obtained with sufficient reproducibility over the entire specification range and can inspect an optical disk as the object of inspection in properties closer to those of a prototype. SOLUTION: An optical disk 33 as the object of inspection is reproduced by using a gain correction factor a j and an offset correction factor b j , in each n+1 section as parameters for calibration. In reproducing, a measured value of a reproduced signal actually measured in each the section (section number j), sectioned by the reproducing part of at least three points is expressed as X, and the measured value X is applied to a correlation equation. A measurement means 7 are then calibrated, based on a calibration value Y which fills the following equation. The calibration value Y= (gain correction factor a j ) + (measured value X) + (offset correction factor b j ). Then an optical disk 33 as the object of inspection is inspected. COPYRIGHT: (C)2003,JPO

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