公开(公告)号：US20050044559A1

公开(公告)日：2005-02-24

申请号：US10920380

申请日：2004-08-18

申请人： Jun Kanehira ,  Osamu Ishizaki

发明人： Jun Kanehira ,  Osamu Ishizaki

IPC分类号： G11B7/24 ,  G11B7/26 ,  G11B23/00

CPC分类号： G11B7/24097 ,  G11B7/266 ,  G11B23/0035

摘要： An optical recording medium includes a plane ring-shaped substrate in which a center hole is opened at the center thereof, a recording-retrieving function layer and a cover layer each having an outer diameter approximately equal to that of the substrate and an inner diameter larger than an outer diameter of the center hole, are stacked on the substrate, and as a separate entity from the cover layer, a clamp portion which is for holding and fixing the substrate and which has an outer diameter smaller than inner diameters of the recording-retrieving function layer and the cover layer, is provided around the center hole in a region where the cover layer is not formed.

摘要翻译： 光记录介质包括其中心孔在其中心开口的平面环形基底，记录检索功能层和覆盖层，每个外围具有与基底相近的外径，内径较大 与中心孔的外径相比，堆叠在基板上，并且作为与覆盖层分离的实体，具有用于保持和固定基板的夹紧部分，该夹持部分的外径小于记录层的内径， 提取功能层和覆盖层，设置在未形成覆盖层的区域中的中心孔周围。

公开(公告)号：US07478413B2

公开(公告)日：2009-01-13

申请号：US10920380

申请日：2004-08-18

申请人： Jun Kanehira ,  Osamu Ishizaki

发明人： Jun Kanehira ,  Osamu Ishizaki

IPC分类号： G11B7/24

CPC分类号： G11B7/24097 ,  G11B7/266 ,  G11B23/0035

摘要： An optical recording medium includes a plane ring-shaped substrate in which a center hole is opened at the center thereof, a recording-retrieving function layer and a cover layer each having an outer diameter approximately equal to that of the substrate and an inner diameter larger than an outer diameter of the center hole, are stacked on the substrate, and as a separate entity from the cover layer, a clamp portion which is for holding and fixing the substrate and which has an outer diameter smaller than inner diameters of the recording-retrieving function layer and the cover layer, is provided around the center hole in a region where the cover layer is not formed.

摘要翻译： 光记录介质包括其中心孔在其中心开口的平面环形基底，记录检索功能层和覆盖层，每个外围具有与基底相近的外径，内径较大 与中心孔的外径相比，堆叠在基板上，并且作为与覆盖层分离的实体，具有用于保持和固定基板的夹紧部分，该夹持部分的外径小于记录层的内径， 提取功能层和覆盖层，设置在未形成覆盖层的区域中的中心孔周围。

公开(公告)号：US07001655B2

公开(公告)日：2006-02-21

申请号：US11000477

申请日：2004-12-01

申请人： Kenjirou Kiyono ,  Jun Kanehira ,  Akio Okamuro

发明人： Kenjirou Kiyono ,  Jun Kanehira ,  Akio Okamuro

IPC分类号： B32B3/02

CPC分类号： G11B7/257 ,  G11B7/2403 ,  G11B7/243 ,  G11B7/252 ,  G11B7/259 ,  G11B7/2595 ,  G11B2007/24314 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  Y10T428/21

摘要： An optical recording medium simultaneously having higher recording characteristics and storage stability than ever, is obtained.An optical recording medium comprising at least a phase change recording layer, a first diffusion preventing layer, a second diffusion preventing layer and a protective layer formed in this order on a substrate, characterized in that the first diffusion preventing layer and the second diffusion preventing layer comprise a non-gas element and nitrogen and/or oxygen as the main components, the non-gas element in each of the first diffusion preventing layer and the second diffusion preventing layer, is the same, and the content (atomic %) of nitrogen and/or oxygen contained in the second diffusion preventing layer, is larger than the content (atomic %) of nitrogen and/or oxygen contained in the first diffusion preventing layer.

摘要翻译： 获得了具有比以往更高的记录特性和存储稳定性的光记录介质。

公开(公告)号：US4440585A

公开(公告)日：1984-04-03

申请号：US455523

申请日：1983-01-04

申请人： Jun Kanehira

发明人： Jun Kanehira

IPC分类号： C22C45/04 ,  H01F1/153 ,  C22C19/07

CPC分类号： H01F1/15316 ,  C22C45/04

摘要： An amorphous magnetic alloy having the formula Co.sub.x M.sub.y B.sub.z wherein M is zirconium, hafnium and/or titanium. When M is hafnium or zirconium 70.ltoreq.x.ltoreq.80, 8.ltoreq.y.ltoreq.15 and 10.ltoreq.z.ltoreq.16. When M is titanium, 70.ltoreq.x.ltoreq.72, 16.ltoreq.y.ltoreq.25 and 4.ltoreq.z.ltoreq.10. When M is hafnium together with titanium and/or zirconium, 70.ltoreq.x.ltoreq.80, 8.ltoreq.y.ltoreq.20 and 5.ltoreq.z.ltoreq.16.

摘要翻译： 具有式CoxMyBz的非晶磁性合金，其中M是锆，铪和/或钛。 当M是铪或锆70 = 80时，8≤y≤15且10≤z≤16。 当M为钛时，70

公开(公告)号：US20050079444A1

公开(公告)日：2005-04-14

申请号：US11000477

申请日：2004-12-01

申请人： Kenjirou Kiyono ,  Jun Kanehira ,  Akio Okamura

发明人： Kenjirou Kiyono ,  Jun Kanehira ,  Akio Okamura

IPC分类号： G11B7/2403 ,  G11B7/243 ,  G11B7/252 ,  G11B7/257 ,  G11B7/259 ,  G11B7/2595 ,  G11B7/24

CPC分类号： G11B7/257 ,  G11B7/2403 ,  G11B7/243 ,  G11B7/252 ,  G11B7/259 ,  G11B7/2595 ,  G11B2007/24314 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/2571 ,  G11B2007/25715 ,  Y10T428/21

摘要： An optical recording medium simultaneously having higher recording characteristics and storage stability than ever, is obtained. An optical recording medium comprising at least a phase change recording layer, a first diffusion preventing layer, a second diffusion preventing layer and a protective layer formed in this order on a substrate, characterized in that the first diffusion preventing layer and the second diffusion preventing layer comprise a non-gas element and nitrogen and/or oxygen as the main components, the non-gas element in each of the first diffusion preventing layer and the second diffusion preventing layer, is the same, and the content (atomic %) of nitrogen and/or oxygen contained in the second diffusion preventing layer, is larger than the content (atomic %) of nitrogen and/or oxygen contained in the first diffusion preventing layer.

摘要翻译： 获得了具有比以往更高的记录特性和存储稳定性的光记录介质。 一种光学记录介质，其至少包括在基板上依次形成的相变记录层，第一扩散防止层，第二扩散防止层和保护层，其特征在于，所述第一扩散防止层和所述第二扩散防止层 包括非气体元素和氮和/或氧作为主要成分，第一扩散防止层和第二扩散防止层中的每一个中的非气体元素相同，氮的含量（原子％） 和/或包含在第二扩散防止层中的氧大于第一扩散防止层中包含的氮和/或氧的含量（原子％）。

公开(公告)号：US5530641A

公开(公告)日：1996-06-25

申请号：US232319

申请日：1994-04-25

申请人： Jun Kanehira

发明人： Jun Kanehira

IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B7/14 ,  G11B11/105

CPC分类号： G11B7/24085 ,  G11B11/10578 ,  G11B7/00718 ,  G11B7/14 ,  G11B7/24079

摘要： A recording film of a recording medium has tracks with a track pitch of 1.6 .mu.m. Each track has a land and a groove, and the width of each of the land and groove is about 0.8 .mu.m. The groove and land differ relatively in height by a degree corresponding to (2n-1)/4 (n: a natural number) times the wavelength of the irradiated beam. At the time of reproduction, reflected diffraction beam components reflected from the land and groove are provided with a phase difference .pi.. Thus, a peak of the diffraction beam is concentrated within the range of the NA of an objective lens, with high intensity. As a result, the presence/absence of pits located at a distance less than a diffraction limit, which have not been detected in the prior art, can be detected.

摘要翻译： 记录介质的记录膜具有轨道间距为1.6μm的轨迹。 每个轨道具有一个槽脊和一个槽，每个槽脊和槽的宽度约为0.8μm。 凹槽和平台的高度相对于对应于照射束的波长的（2n-1）/ 4（n：自然数）的程度而相差。 在再现时，从脊部和凹槽反射的反射衍射光束分量被提供有相位差pi。 因此，衍射光束的峰值集中在物镜的NA的范围内，具有高强度。 结果，可以检测到位于距离小于衍射极限的距离的存在/不存在，这在现有技术中未被检测到。

公开(公告)号：US5202878A

公开(公告)日：1993-04-13

申请号：US703413

申请日：1991-05-21

申请人： Jun Kanehira ,  Naoyuki Ueno

发明人： Jun Kanehira ,  Naoyuki Ueno

IPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/013 ,  G11B11/105 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B27/19 ,  G11B27/30 ,  H04N5/84 ,  H04N5/926

CPC分类号： G11B7/24085 ,  G11B11/10504 ,  G11B11/10515 ,  G11B11/10532 ,  G11B20/10009 ,  G11B20/1251 ,  G11B20/1426 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/0045 ,  G11B7/005 ,  H04N5/84 ,  H04N5/9265 ,  G11B2220/20 ,  G11B2220/2525 ,  G11B2220/2537

摘要： According to the present invention, recording laser beam is shot from a semiconductor laser to form a mark set which comprises a pair of marks on the track of an optical recording medium in the track width direction thereof and first information which has been coded corresponding to the interval between the paired marks in the mark set is recorded on the track of the optical recording medium. At the same time, the plural mark sets are formed on the track of the optical recording medium in the track length direction thereof and second information which has been coded corresponding to the interval between these mark sets is recorded on the track of the optical recording medium. The track of the optical recording medium is scanned in the track width direction thereof with reproducing laser beam shot from a semiconductor laser and .+-. first-order diffraction beam of an optical interference pattern which is created from the paired marks in the mark set thus scanned is detected to reproduce the first information. At the same time, the track is scanned in the track length direction thereof with the reproducing laser beam and zero-order diffraction beam of an optical interference pattern which changes corresponding to the interval between the plural mark sets thus scanned is detected to reproduce the second information.

摘要翻译： 根据本发明，从半导体激光器拍摄记录激光束，以形成在光记录介质的轨道宽度方向上的轨道上包括一对标记的标记集，并且已经对应于 标记集中的配对标记之间的间隔被记录在光学记录介质的轨道上。 同时，在光记录介质的磁道长度方向的轨道上形成多个标记集，并且将与这些标记组之间的间隔相对应的编码的第二信息记录在光记录介质的轨道上 。 光盘记录介质的轨迹沿其轨道宽度方向扫描，从再现从半导体激光器射出的激光束和+/-一级衍射光束的光学干涉图案，其由标记集中的成对标记产生 检测到扫描以再现第一信息。 同时，利用再现激光束在轨道长度方向上扫描轨道，并且检测到相应于如此扫描的多个标记集之间的间隔而改变的光学干涉图案的零级衍射光束以再现第二 信息。

公开(公告)号：US5019476A

公开(公告)日：1991-05-28

申请号：US435946

申请日：1989-11-13

申请人： Toshiyuki Kanno ,  Naoyuki Ueno ,  Seiji Kondo ,  Yasuji Nagata ,  Jun Kanehira ,  Hideshi Takahashi ,  Yoshiko Uematsu

发明人： Toshiyuki Kanno ,  Naoyuki Ueno ,  Seiji Kondo ,  Yasuji Nagata ,  Jun Kanehira ,  Hideshi Takahashi ,  Yoshiko Uematsu

IPC分类号： G11B7/0055 ,  G11B7/24 ,  G11B7/25

CPC分类号： G11B7/25 ,  C09K19/26 ,  C09K19/3483 ,  C09K19/3833 ,  C09K19/40 ,  G11B7/00555 ,  G11B7/24 ,  C09K2019/122 ,  C09K2019/2035 ,  Y10S430/146

摘要： An optical recording medium such as an optical disk, which is capable of reversibly repeating a recording/erasing cycle. This optical recording medium comprises a transparent substrate and recording layer formed on the substrate. This recording layer comprise a liquid crystalline high polymer having side chains and a dyestuff having a recording-light absorbing property. The side chain may preferably comprises mesogen group, a monocyclic or polycyclic compound such as phenyl, benzyl, naphthyl or anthryl group, and alkyl or aryl group having 1 to 18 carbon atoms.