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1. 发明授权

US4985885A Optical memory device 失效
标题翻译：光存储设备
公开(公告)号：US4985885A
公开(公告)日：1991-01-15
申请号：US213817
申请日：1988-06-30
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Yoshiteru Murakami
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Yoshiteru Murakami
IPC分类号： G11B11/105 , G11B19/12 , G11B19/20
CPC分类号： G11B19/12 , G11B11/10584 , G11B11/10586 , G11B19/20
摘要： An optical memory device comprising a first light-permeable substrate, a second light-permeable substrate and a plurality of strip-shaped optical recording layers that are disposed with a gap between the first substrate and the second substrate, wherein the optical path length from the outer surface of the first substrate to the recording layers is approximately equal to the optical path length from the outer surface of the second surface to the recording layers.

2. 发明授权

US4818648A Optical memory element 失效
标题翻译：光学存储元件
公开(公告)号：US4818648A
公开(公告)日：1989-04-04
申请号：US934718
申请日：1986-11-25
申请人： Kenji Ohta , Akira Takahashi , Tetsuya Inui , Hiroyuki Katayama , Junji Hirokane , Yoshiteru Murakami
发明人： Kenji Ohta , Akira Takahashi , Tetsuya Inui , Hiroyuki Katayama , Junji Hirokane , Yoshiteru Murakami
IPC分类号： G11B11/10 , C03C3/076 , C03C3/083 , C03C3/091 , C03C4/00 , C03C15/00 , G11B7/24 , G11B7/253 , G11B7/26 , G11B11/105 , G03C5/16 , G01D9/00 , G11B3/70
CPC分类号： G11B7/24 , C03C3/076 , C03C3/083 , C03C3/091 , G11B7/2531 , G11B7/261 , G11B2007/24304 , G11B7/2533 , Y10T428/24479 , Y10T428/2457
摘要： An optical memory element comprising a substrate with grooves functioning as grooves for, for example, controlling the position of a laser beam, wherein said substrate is composed of a glass containing SiO.sub.2 in the range of 51 to 71% by weight, Na.sub.2 O in the range of 10 to 18% by weight, K.sub.2 O in the range of 0 to 8% by weight, Al.sub.2 O.sub.3 in the range of 12 to 22% by weight, and B.sub.2 O.sub.3 in the range of 0 to 9% by weight.
摘要翻译：一种光学存储元件，包括具有用作例如控制激光束位置的凹槽的衬底，其中所述衬底由含有51至71重量％的SiO 2的玻璃组成，在该范围内的Na 2 O在该范围内为10〜18重量％，K 2 O为0〜8重量％，Al 2 O 3为12〜22重量％，B 2 O 3为0〜9重量％。

3. 发明授权

US4717628A Magnetooptical storage element 失效
标题翻译：磁光存储元件
公开(公告)号：US4717628A
公开(公告)日：1988-01-05
申请号：US830862
申请日：1986-02-19
申请人： Akira Takahashi , Yoshiteru Murakami , Hiroyuki Katayama , Junji Hirokane , Kenji Ohta
发明人： Akira Takahashi , Yoshiteru Murakami , Hiroyuki Katayama , Junji Hirokane , Kenji Ohta
IPC分类号： G11B11/10 , G11B7/26 , G11B11/105 , G11C13/06 , G11B7/24
CPC分类号： G11B7/26 , G11B11/10589 , Y10S428/90 , Y10S428/928 , Y10T428/31678
摘要： A magnetooptical storage element having a recording layer of a multi-layer construction including a reflective layer. The reflective layer is made of an aluminium-nickel alloy obtained by adding nickel to aluminium such that the aluminium-nickel alloy contains approximately 2 to 10 atomic percent of nickel.
摘要翻译：具有包括反射层的多层结构的记录层的磁光存储元件。反射层由通过将镍添加到铝中而获得的铝 - 镍合金制成，使得铝 - 镍合金含有约2至10原子％的镍。

4. 发明授权

US4917751A Method of producing double sided optical memory disks 失效
标题翻译：双面光存储盘的制造方法
公开(公告)号：US4917751A
公开(公告)日：1990-04-17
申请号：US328743
申请日：1989-03-20
申请人： Kenji Ohta , Hiroyuki Katayama , Akira Takahashi , Yoshiteru Murakami , Junji Hirokane
发明人： Kenji Ohta , Hiroyuki Katayama , Akira Takahashi , Yoshiteru Murakami , Junji Hirokane
IPC分类号： B29C35/08 , B29C70/08 , G11B7/26 , G11B11/105
CPC分类号： G11B7/26 , B29C35/08 , B29C70/086 , B29C2035/0827 , B29L2017/005 , G11B11/10584 , Y10T156/1097 , Y10T156/1098
摘要： Double sided optical memory disks are produced by dropping a viscous adhesive material hardenable by ultraviolet radiation at predetermined longitudinal intervals onto an elongated cloth material of uniform thickness thereby causing the adhesive material to become absorbed by and contained in the cloth material, thereafter placing this cloth material sandwichedly between two optical disk pieces each containing a recording layer, thereafter applying pressure between these pieces such that the sandwiching pieces remain separated uniformly by a predetermined separation distance, and thereafter applying ultraviolet radiation to and thereby hardening the adhesive material while the disk pieces are maintained at the uniform separation distance.
摘要翻译：双面光学记忆盘是通过将能够以预定的纵向间隔使紫外线辐射固化的粘性粘合剂材料滴落到均匀厚度的细长布料上制成的，从而使粘合剂材料被布料吸收并包含在布料中，然后将该布料夹在两个光盘片之间，每个光盘片均包含记录层，然后在这些片之间施加压力，使得夹持片保持均匀分离预定的间隔距离，然后在保持盘片的同时施加紫外线辐射，从而硬化粘合剂材料在均匀分离距离。

5. 发明授权

US5705286A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5705286A
公开(公告)日：1998-01-06
申请号：US163096
申请日：1993-12-07
申请人： Junji Hirokane , Yoshiteru Murakami , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Junji Hirokane , Yoshiteru Murakami , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10586 , Y10S428/90
摘要： A magneto-optical recording medium has an exchange-coupled triplilayer film wherein a readout layer which has in-plane magnetization at room temperature, and in which a transition occurs from in-plane magnetization to perpendicular magnetization when temperature thereof is raised above T.sub.1, an intermediate layer which has perpendicular magnetization at room temperature, the perpendicular magnetization being maintained from room temperature to Curie temperature T.sub.3, and a recording layer which has perpendicular magnetization at room temperature, the perpendicular magnetization been maintained from room temperature to Curie temperature T.sub.2 which are laminated in this order, and the temperatures T.sub.1, T.sub.2 and T.sub.3 satisfy the following inequality: T.sub.1
摘要翻译：磁光记录介质具有交换耦合三层膜，其中在室温下具有面内磁化的读出层，并且其温度升高到T1以上时从平面内磁化转变为垂直磁化的读出层，在室温下具有垂直磁化的中间层，垂直磁化维持在室温至居里温度T3，以及在室温下具有垂直磁化的记录层，垂直磁化维持在室温至居里温度T2之间，层压按照该顺序，温度T1，T2和T3满足以下不等式：T1

6. 发明授权

US4695514A Magneto-optical memory element 失效
标题翻译：磁光存储元件
公开(公告)号：US4695514A
公开(公告)日：1987-09-22
申请号：US675850
申请日：1984-11-28
申请人： Akira Takahashi , Yoshiteru Murakami , Junji Hirokane , Hiroyuki Katayama , Kenji Ohta
发明人： Akira Takahashi , Yoshiteru Murakami , Junji Hirokane , Hiroyuki Katayama , Kenji Ohta
IPC分类号： H01F10/14 , G11B11/10 , G11B11/105 , G11C13/06 , H01F10/12 , H01F10/13 , G11B7/24
CPC分类号： G11B11/10591 , G11B11/10586 , Y10S428/90 , Y10T428/31678
摘要： A magneto-optical memory element includes a glass substrate and an amorphous Nd-Gd-Fe ternary alloy magnetic recording thin-film having an axis of easy magnetization perpendicular to its surface. The magneto-optical memory element shows a preferable coercive force, a high Kerr rotation angle in the reproduced laser beam, and the Curie temperature suited for a stable operation.
摘要翻译：磁光存储元件包括玻璃基板和具有垂直于其表面的易磁化轴的非晶Nd-Gd-Fe三元合金磁记录薄膜。磁光存储元件显示出优选的矫顽力，再现激光束中的高克尔旋转角以及适于稳定操作的居里温度。

7. 发明授权

US4610912A Magneto-optic memory element 失效
标题翻译：磁光存储元件
公开(公告)号：US4610912A
公开(公告)日：1986-09-09
申请号：US648741
申请日：1984-09-10
申请人： Akira Takahashi , Yoshiteru Murakami , Junji Hirokane , Hiroyuki Katayama , Kenji Ohta , Hideyoshi Yamaoka
发明人： Akira Takahashi , Yoshiteru Murakami , Junji Hirokane , Hiroyuki Katayama , Kenji Ohta , Hideyoshi Yamaoka
IPC分类号： G11B11/105 , H01F10/12 , H01F10/14 , G11B7/24
CPC分类号： G11B11/10593 , H01F10/126 , H01F10/14 , Y10S428/90 , Y10T428/2495 , Y10T428/24975
摘要： A magneto-optic memory element includes a transparent substrate, a first transparent nitride film, a GdTbFe recording layer, a second transparent nitride film, and a reflection film formed in this order. The first transparent nitride film has an index of refraction higher than that of the second transparent nitride film. In a preferred form, the first transparent nitride film is a SiN film having the index of refraction of about 2.0, and the second transparent nitride film is an AlN film having the index of refraction of about 1.8 to 1.9.
摘要翻译：磁光存储元件包括透明衬底，第一透明氮化物膜，GdTbFe记录层，第二透明氮化物膜和依次形成的反射膜。第一透明氮化物膜的折射率高于第二透明氮化物膜的折射率。在优选形式中，第一透明氮化物膜是折射率为约2.0的SiN膜，第二透明氮化物膜是折射率为约1.8至1.9的AlN膜。

8. 发明授权

US5600627A Optical disk and a method for recording, reproducing, and deleting information on and from the optical disk 失效
标题翻译：光盘以及用于在光盘上记录，再现和删除信息的方法
公开(公告)号：US5600627A
公开(公告)日：1997-02-04
申请号：US340333
申请日：1994-11-14
申请人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B7/007 , G11B7/013 , G11B7/14 , G11B13/04
CPC分类号： G11B7/00745 , G11B7/14 , G11B7/24079 , G11B7/24085
摘要： The method of the present invention is for recording, reproducing, and deleting information on and from an optical disk including a plurality of tracks each having M guide grooves (M is an integer equal to or larger than 2) and M-1 land(s) interposed between the adjacent guide grooves, at least one of the land(s) having a group of pits for producing address information. The method includes the step of: focusing light beams on the respective guide grooves and land(s) for effecting the recording, reproduction, and deletion of information. Such an optical disk is also provided.
摘要翻译：本发明的方法是用于在包括M个导槽（M为2以上的整数）的多个轨道的光盘上记录，再现和删除信息，M-1个地面）插入在相邻引导槽之间，至少一个具有一组凹坑的区域用于产生地址信息。该方法包括以下步骤：将光束聚焦在各个引导槽和岸台上，以进行信息的记录，再现和删除。还提供了这种光盘。

9. 发明授权

US5459711A Optical recording element and driving system 失效
标题翻译：光学记录元件和驱动系统
公开(公告)号：US5459711A
公开(公告)日：1995-10-17
申请号：US219253
申请日：1994-03-29
申请人： Kenji Ohta , Tetsuya Inui , Hiroyuki Katayama , Akira Takahashi , Junji Hirokane , Yukinori Nishitani , Michinobu Mieda , Kazuo Van
发明人： Kenji Ohta , Tetsuya Inui , Hiroyuki Katayama , Akira Takahashi , Junji Hirokane , Yukinori Nishitani , Michinobu Mieda , Kazuo Van
IPC分类号： G11B7/0045 , G11B7/013 , G11B7/09 , G11B7/125 , G11B7/24 , G11B7/24085 , G11B11/105 , G11B19/02 , G11B3/78
CPC分类号： G11B7/0045 , G11B11/10528 , G11B11/10578 , G11B11/10595 , G11B19/02 , G11B7/0938 , G11B7/126 , G11B7/24 , G11B7/24085
摘要： An optical recording element comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample pits disposed at intervals of a fixed distance for providing basic information about the locations of the recording units in same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6.degree. to 80.degree. to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed for reducing, erasing and verifying these functions can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.
摘要翻译：一种光记录元件，包括记录介质，该记录介质包括在非连续状态下在每个单元处形成的信息记录区域，所述记录介质还包括以固定距离间隔设置的样品坑，以提供关于记录单元的位置的基本信息在同一轨道。每个采样坑包括靠近记录单元序列设置的多个凹坑，使得凹坑之间的间隔与记录单元之间的间隔不同。多个凹坑中的至少一个是相对于记录轨道以6°至80°的角度倾斜的长尺寸倾斜凹坑。一种驱动系统，用于驱动用于在非连续记录区域中记录信息的光学记录元件，或者用存储在其中的光束擦除信息，该光束的输出根据需要变化，并且检查是否正确地执行了所述记录或擦除光束通过非连续记录区域的非常短的时间。通过与其驱动系统结合使用光学记录元件，可以大大提高用于减少，擦除和验证这些功能的处理速度，并且可以正确地控制每个记录单元处的光束的照射位置。

10. 发明授权

US4839251A Photo-mask for use in manufacturing an optical memory disc, a method for making the photo-mask and a method for manufacturing the optical memory disc 失效
标题翻译：用于制造光存储盘的照相掩模，用于制造光掩模的方法和用于制造光存储盘的方法
公开(公告)号：US4839251A
公开(公告)日：1989-06-13
申请号：US36426
申请日：1987-04-09
申请人： Kenji Ohta , Akira Takahashi , Tetsuya Inui , Junji Hirokane , Hiroyuki Katayama
发明人： Kenji Ohta , Akira Takahashi , Tetsuya Inui , Junji Hirokane , Hiroyuki Katayama
IPC分类号： G11B7/26
CPC分类号： G11B7/261
摘要： A photo-mask for use in manufacturing an optical memory disc has a substrate having a disc shape and made of a transparent material, and a film deposited on the substrate and formed with a predetermined pattern of grooves extending spirally or concentrically to the center of the disc shaped substrate such as to leave a thin film at the bottom of the grooves, and a number of microscopic pits in the form of minute indentations with a predetermined spacing aligned along the grooves so as to substantially leave no film at the bottom of the indentations. Thus, a light which has passed through the thin film at grooves is weakened and a light which has passed through the indentations loses substantially no power, and a light applied elsewhere on the film is cut off. The photo-mask is made through the steps of depositing an opaque film on a substrate having a disc shape and made of a transparent material, impinging a first laser at places where the grooves are to be formed, and impinging a second laser at places where the pits are to be formed. The first laser is weaker in power than the second laser.
摘要翻译：用于制造光学存储盘的光掩模具有盘形状并由透明材料制成的基板，以及沉积在基板上并形成有螺旋状或同心地延伸到其中心的预定图案的凹槽的薄膜盘形基板，例如在凹槽的底部留下薄膜，并且具有沿着凹槽对准的预定间隔的微小凹痕形式的多个微凹坑，以便在凹痕的底部基本上不留下薄膜。因此，通过凹槽处的薄膜的光被削弱，并且已经穿过凹痕的光基本上不会损失功率，并且切断在膜上其他地方施加的光。光掩模是通过以下步骤制成的：通过在具有圆盘形状并由透明材料制成的衬底上沉积不透明膜，将第一激光照射到要形成凹槽的位置，并将第二激光照射在坑将形成。第一个激光器的功率比第二个激光器弱。

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