公开(公告)号：US5751670A

公开(公告)日：1998-05-12

申请号：US672717

申请日：1996-06-28

申请人： Yoshihito Fukushima

发明人： Yoshihito Fukushima

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B11/00 ,  G11B7/24

CPC分类号： G11B11/10584

摘要： A magneto-optical disc includes a disc-shaped transparent substrate, a recording layer formed on the substrate for extending from an inner diameter to nearly an outer most diameter, and an outer peripheral portion of the recording layer having a thickness thinner than a thickness of an inner portion of the recording layer. The inner portion has a reflectance value to a recording and playback light beam having a wavelength .lambda.. The portion having such reflectance value is extended to the peripheral portion so that a recording layer is extended to the peripheral portion.

摘要翻译： 磁光盘包括盘形透明基板，形成在基板上的记录层，用于从内径延伸到近似外径，记录层的外周部分的厚度比 记录层的内部。 内部具有对具有波长λ的记录和重放光束的反射率值。 具有这种反射率值的部分延伸到周边部分，使得记录层延伸到周边部分。

公开(公告)号：US20090092034A1

公开(公告)日：2009-04-09

申请号：US12210569

申请日：2008-09-15

申请人： Norihiro Tanabe ,  Yoshihito Fukushima

发明人： Norihiro Tanabe ,  Yoshihito Fukushima

IPC分类号： G11B7/24

CPC分类号： G11B7/0065 ,  G11B7/00781 ,  G11B7/0938 ,  G11B7/1275 ,  G11B7/24044

摘要： An optical information recording medium includes: a recording area on which an interfering beam formed where a first beam and a second beam whose converging angle is smaller than that of the first beam overlap each other is recorded as a hologram, the first and second beams being emitted from the same light source with the first beam directed to one surface and the second beam directed to the other surface; a first base area that covers the recording area's one surface to which the first beam is emitted, and allows the first beam to pass therethrough; and a second base area that is made thicker than the first base area, covers the recording area's other surface to which the second beam is emitted, and allows the second beam to pass therethrough.

摘要翻译： 光学信息记录介质包括：记录区域，其上形成有第一光束和第二光束的会聚角小于第一光束的第二光束的干涉光束作为全息图记录，第一和第二光束为 从同一光源发射，第一光束指向一个表面，第二光束指向另一个表面; 覆盖记录区域的第一光束发射的一个表面的第一基区，并允许第一光束通过; 并且制成比所述第一基底区域厚的第二基底区域，覆盖所述第二光束被发射的所述记录区域的另一表面，并且允许所述第二光束通过。

公开(公告)号：US20080285392A1

公开(公告)日：2008-11-20

申请号：US12112539

申请日：2008-04-30

申请人： Yoshihito Fukushima

发明人： Yoshihito Fukushima

IPC分类号： G11B7/00

CPC分类号： G11B7/0908 ,  G11B7/00452 ,  G11B7/0053 ,  G11B7/0065 ,  G11B7/0938 ,  G11B2007/0013

摘要： An optical information recording method of recording information three-dimensionally by irradiating a laser light beam onto a medium having a servo information plane on which address information and/or servo information is recorded, is disclosed. The method includes the steps of: dividing a laser light beam from one laser light source into laser light beams, the beam including a first light beam for reading the information, and a second light beam for recording information onto the recording medium; irradiating the first light beam onto the servo information plane to read the information from reflected light of the first light beam to read the information in which optical axes of the first light beam and second light beam are arranged coaxially; and irradiating the second light beam based on the read information to be focused onto a position in a depth direction perpendicular to a horizontal direction of the recording medium.

摘要翻译： 公开了一种光信息记录方法，其通过将激光束照射到具有记录有地址信息和/或伺服信息的伺服信息平面的介质上来三维地记录信息。 该方法包括以下步骤：将来自一个激光光源的激光束分成激光束，所述光束包括用于读取信息的第一光束和用于将信息记录到记录介质上的第二光束; 将所述第一光束照射到所述伺服信息平面上，以从所述第一光束的反射光读取所述信息，以读取所述第一光束和所述第二光束的光轴同轴布置的信息; 以及基于所读取的信息照射所述第二光束以聚焦到与记录介质的水平方向垂直的深度方向上的位置。

公开(公告)号：US07420910B2

公开(公告)日：2008-09-02

申请号：US11526392

申请日：2006-09-25

申请人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

发明人： Kazutomo Miyata ,  Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

IPC分类号： G11B7/24

CPC分类号： G11B11/10578 ,  G11B7/24079 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10597

摘要： An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of from 780 nm±10 nm and an objective lens with a numerical aperture NA selected in a range of from 0.45±0.01 and records and reproduces first and second optical recording mediums having different recording capacities. The first optical recording medium is constructed by using a substrate with a track pitch Tp1 being selected in a range of from 1.5 μm to 1.7 μm and a groove depth d1 being selected in a range of from 70 nm to 90 nm, and the second optical recording medium is constructed by using a substrate 11 with a track pitch Tp2 being selected in a range of from 1.2 μm to 1.3 μm and a groove depth d2 of the groove 12 being selected in a range of from 150 nm to 180 nm. This, the optical recording medium has compatibility with existing optical discs and has a recording density high enough to record a moving picture.

摘要翻译： 光学记录和再现方法能够通过使用使用在780nm±10nm范围内选择的波长的记录和再现光的光学系统来记录和再现信息，并且在范围内选择数值孔径NA的物镜 从0.45±0.01开始记录和再现具有不同记录容量的第一和第二光记录介质。 第一光记录介质通过使用在1.5μm至1.7μm的范围内选择的轨道间距T p 1> 1的衬底和凹槽深度d 1 1 < 选择在70nm至90nm的范围内，并且第二光学记录介质通过使用在1.2μm至1.3μm的范围内选择的轨道间距T p 2 <2>的基板11来构造 并且沟槽12的凹槽深度d 2 2 在150nm至180nm的范围内选择。 这样，光学记录介质与现有的光盘具有兼容性并且具有足够高的记录密度来记录运动图像。

公开(公告)号：US20060120264A1

公开(公告)日：2006-06-08

申请号：US10534536

申请日：2003-10-20

申请人： Yoshihito Fukushima ,  Jun Nakano ,  Shin Masuhara ,  Akio Koshita

发明人： Yoshihito Fukushima ,  Jun Nakano ,  Shin Masuhara ,  Akio Koshita

IPC分类号： G11B7/24

CPC分类号： G11B7/00736 ,  G11B7/0945 ,  G11B7/0953

摘要： A data area to record and/or reproduce data and an eccentricity measuring area 14 in which a groove area formed with spiral grooves and a planer mirror area are spatially alternately arranged are provided for a disc substrate. A width of groove area formed in the eccentricity measuring area, a width of mirror area, and an interval between the grooves in the groove area are selected so that a conventional mechanical characteristics measuring apparatus can track a plurality of grooves formed in the groove area as if the grooves were a single groove.

摘要翻译： 记录和/或再现数据的数据区域以及在空间上交替布置有形成有螺旋槽和平面镜面积的槽区域的偏心测量区域14设置用于盘基片。 选择在偏心测量区域中形成的沟槽区域的宽度，镜面积的宽度以及槽区域中的槽之间的间隔，使得常规的机械特性测量装置可以跟踪形成在槽区域中的多个槽 如果槽是单个槽。

公开(公告)号：US06986152B2

公开(公告)日：2006-01-10

申请号：US10344700

申请日：2002-06-26

申请人： Hiroyuki Takemoto ,  Mitsuo Arima ,  Tadao Suzuki ,  Yoshihito Fukushima ,  Hiroshi Nakayama ,  Atsushi Takeuchi

发明人： Hiroyuki Takemoto ,  Mitsuo Arima ,  Tadao Suzuki ,  Yoshihito Fukushima ,  Hiroshi Nakayama ,  Atsushi Takeuchi

IPC分类号： G11B7/24

CPC分类号： G11B7/261 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24076 ,  G11B7/26 ,  G11B11/10582 ,  G11B11/10584 ,  G11B11/10586

摘要： An optical information recording medium, which includes both of a land surface and a groove surface as a recording track and presents high signal quality. The optical information recording medium includes both a land and a groove as the recording track on a substrate, in which a laser light is irradiated from a reverse side of the substrate to thereby carry out a recording and a reproduction, and an inclination angle of a groove side is 25° or more and 40° or less, and both of arithmetic average roughness (Ra) on the land surface and the groove surface are assumed to be 0.2 to 0.7 nm.

摘要翻译： 一种光学信息记录介质，其包括陆面和凹槽表面作为记录轨道，并且呈现高信号质量。 光信息记录介质包括作为基板上的记录轨道的平台和凹槽，其中激光从基板的反面照射，从而进行记录和再现，并且倾斜角度 槽侧为25°以上且40°以下，并且陆面的表面和槽面之间的算术平均粗糙度（Ra）均为0.2〜0.7nm。

公开(公告)号：US06800348B2

公开(公告)日：2004-10-05

申请号：US09485206

申请日：2000-05-12

申请人： Hiroyuki Takemoto ,  Atsushi Takeuchi ,  Yoshihito Fukushima ,  Kenichi Itoh ,  Mineo Moribe ,  Takehiko Numata

发明人： Hiroyuki Takemoto ,  Atsushi Takeuchi ,  Yoshihito Fukushima ,  Kenichi Itoh ,  Mineo Moribe ,  Takehiko Numata

IPC分类号： B32B302

CPC分类号： G11B11/10565 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/08541 ,  G11B7/24085 ,  G11B7/261 ,  G11B11/10563 ,  Y10T428/21

摘要： A magneto-optical disk having recording tracks are formed along concentric grooves or a spiral groove. A non-groove region where no grooves are made is provided in a middle part of each recording track. In the non-groove region, there is formed a pit pattern representing information about the recording track. A track-counting U-groove is formed in the non-groove region, for detecting that the light spot of a reading laser beam has moved across the recording track. With the disk thus structured, it is possible to record information at high density and to access a desired recording track at high speed.

摘要翻译： 具有记录轨道的磁光盘沿同心凹槽或螺旋槽形成。 在每个记录轨道的中间部分设有不形成槽的非槽区域。 在非凹槽区域中，形成表示关于记录轨道的信息的凹坑图案。 轨道计数U形槽形成在非槽区域中，用于检测读取激光束的光点已经移动通过记录轨道。 利用如此构造的盘，可以以高密度记录信息并以高速访问期望的记录轨道。

公开(公告)号：US08283014B2

公开(公告)日：2012-10-09

申请号：US12651565

申请日：2010-01-04

申请人： Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

发明人： Teruyuki Ota ,  Makoto Watanabe ,  Yoshihito Fukushima

IPC分类号： B32B3/02

CPC分类号： G11B7/2578 ,  G11B7/00454 ,  G11B7/24038 ,  G11B7/252 ,  G11B7/2531 ,  G11B7/2538 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

摘要： Disclosed herein is an optical recording medium, including: a substrate; and an information recording layer formed on the substrate, an information signal being recorded and reproduced in and from the information recording layer by radiation of a light; wherein the information recording layer includes a reflecting layer, a dielectric layer formed on the reflecting layer, and a recording layer formed on the dielectric layer, the dielectric layer includes a first dielectric layer and a second dielectric layer, and a thermal conductivity of the second dielectric layer located on the reflecting layer side is higher than that of the first dielectric layer located on the recording layer side.

摘要翻译： 本文公开了一种光学记录介质，包括：基板; 以及信息记录层，形成在所述基板上，信息信号通过光的照射在所述信息记录层中被记录和再现; 其中所述信息记录层包括反射层，形成在所述反射层上的电介质层和形成在所述电介质层上的记录层，所述电介质层包括第一介电层和第二介电层，并且所述第二介电层的导热率 位于反射层侧的电介质层比位于记录层侧的第一介电层的电介质层高。

公开(公告)号：US07632429B2

公开(公告)日：2009-12-15

申请号：US11326199

申请日：2006-01-05

申请人： Yoshihito Fukushima

发明人： Yoshihito Fukushima

IPC分类号： B29D11/00 ,  B29D17/00

CPC分类号： G11B7/263 ,  B29C45/263 ,  B29C2045/2648 ,  Y10S425/81 ,  Y10T428/21 ,  Y10T428/218 ,  Y10T428/219

摘要： Preventing a molded disc substrate from generating a separation pattern. To this end, a molding die 1 includes a pair of stationary die 6 and movable die 7, and an outer circumference ring 16 for molding an outer circumference end of the disc substrate 2. The outer circumference ring 16 is so mounted as to be movable along forward and backward directions in parallel with a moving direction of the movable die 7 toward the stationary die 6, and has a retaining surface 39 for retaining the outer circumference of the molded disc substrate 2.

摘要翻译： 防止模制的盘基片产生分离图案。 为此，成形模具1包括一对固定模具6和可动模具7以及用于模制盘基片2的外圆周端的外周环16.外圆环16安装成可移动 沿着可动模具7朝向固定模具6的移动方向平行的前后方向，并具有用于保持模制盘基片2的外周的保持面39。

公开(公告)号：US20060275576A1

公开(公告)日：2006-12-07

申请号：US11504140

申请日：2006-08-15

申请人： Yoshihito Fukushima

发明人： Yoshihito Fukushima

IPC分类号： B32B3/02

CPC分类号： G11B7/263 ,  B29C45/263 ,  B29C2045/2648 ,  Y10S425/81 ,  Y10T428/21 ,  Y10T428/218 ,  Y10T428/219

摘要： Preventing a molded disc substrate from generating a separation pattern. To this end, a molding die 1 includes a pair of stationary die 6 and movable die 7, and an outer circumference ring 16 for molding an outer circumference end of the disc substrate 2. The outer circumference ring 16 is so mounted as to be movable along forward and backward directions in parallel with a moving direction of the movable die 7 toward the stationary die 6, and has a retaining surface 39 for retaining the outer circumference of the molded disc substrate 2.

摘要翻译： 防止模制的盘基片产生分离图案。 为此，成形模具1包括一对固定模具6和可动模具7以及用于模制盘基片2的外圆周端的外周环16.外圆环16安装成可移动 沿着可动模具7朝向固定模具6的移动方向平行的前后方向，并具有用于保持模制盘基片2的外周的保持面39。