专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6117544A Magneto-optical recording medium 有权
标题翻译：磁光记录介质
公开(公告)号：US6117544A
公开(公告)日：2000-09-12
申请号：US336094
申请日：1999-06-18
申请人： Junji Hirokane , Noboru Iwata , Akira Takahashi
发明人： Junji Hirokane , Noboru Iwata , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10593 , G11B11/10584 , G11B11/10515 , Y10S428/90
摘要： A recording layer and a flux adjustment layer have different magnetic polarities so that their magnetizations are countervailed at room temperature, with the result that a weakened leakage magnetic flux is released therefrom. A reproducing layer, a reproducing assist layer and an in-plane magnetization layer exhibit in-plane magnetization at room temperature. In a first temperature area having a temperature not more than the critical temperature of the reproducing layer, the reproducing layer 1 exhibits in-plane magnetization so that magnetization of a recording magnetic domain is not copied to the reproducing layer. In contrast, a second temperature area having a temperature rise between the critical temperature and the Curie temperature of the reproducing layer, the flux adjustment layer and the in-plane magnetization layer have reached their Curie temperatures and lost their magnetization; thus, a leakage magnetic flux generated by the magnetization of the recording magnetic domain is copied to the reproducing assist layer that is in a perpendicular magnetization state, and further copied to the reproducing layer. Moreover, in a third temperature area having a temperature rise exceeding the Curie temperature of the reproducing layer, the reproducing layer has lost its magnetization.
摘要翻译：记录层和磁通调节层具有不同的磁极性，使得它们的磁化在室温下抵消，结果是从其中释放出弱化的漏磁通。再现层，再现辅助层和平面内磁化层在室温下表现出平面内的磁化强度。在温度不超过再生层的临界温度的第一温度区域中，再现层1表现出平面内的磁化，使得记录磁畴的磁化不被复制到再现层。相反，具有临界温度和再生层的居里温度之间的温度上升的第二温度区域，通量调节层和面内磁化层已经达到居里温度并失去其磁化强度; 因此，由记录磁畴的磁化产生的泄漏磁通被复制到处于垂直磁化状态的再现辅助层，并进一步复制到再现层。此外，在温度升高超过再现层的居里温度的第三温度区域中，再现层已经失去其磁化。

2. 发明授权

US06278668B1 Magneto-optical storage media 有权
标题翻译：磁光存储介质
公开(公告)号：US06278668B1
公开(公告)日：2001-08-21
申请号：US09442794
申请日：1999-11-18
申请人： Junji Hirokane , Noboru Iwata , Akira Takahashi
发明人： Junji Hirokane , Noboru Iwata , Akira Takahashi
IPC分类号： G11B1100
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593
摘要： A magneto-optical storage medium includes: a reproduction layer exhibiting an in-plane magnetization state at room temperature and changing to a perpendicular magnetization state at a transition temperature Tp1; a supplementary reproduction layer exhibiting an in-plane magnetization state at room temperature and changing to a perpendicular magnetization state at a transition temperature Tp2; a non-magnetic intermediate layer; and a storage layer made of a perpendicular magnetization film, the layers being deposited in this order, the magneto-optical storage medium being arranged so as to satisfy: Tp1
摘要翻译：磁光存储介质包括：在室温下呈平面内的磁化状态并在转变温度Tp1处变为垂直磁化状态的再现层;在室温下呈现面内磁化状态的补充再生层到转变温度Tp2的垂直磁化状态;非磁性中间层; 和由垂直磁化膜制成的存储层，这些层按此顺序沉积，磁光存储介质被布置为满足：这种布置使得磁光存储介质能够放大存储在存储层中的磁信息并将其复制到再现层，并且其信号的周期等于或低于从存储层再现的光的衍射极限，而不减小振幅。

3. 发明授权

US06463015B1 Method of reproducing information on a magneto-optical recording medium for achieving super resolution reproduction of high resolution recorded information 有权
标题翻译：在用于实现高分辨率记录信息的超分辨率再现的磁光记录介质上再现信息的方法
公开(公告)号：US06463015B1
公开(公告)日：2002-10-08
申请号：US09633914
申请日：2000-08-08
申请人： Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
发明人： Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B724
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10586
摘要： A magneto-optical recording medium of the present invention has a recording layer made of a perpendicular magnetization film, and a readout layer which is in an in-plane magnetization state at room temperature and changes into a perpendicular magnetization state with a rise in temperature. When the magneto-optical recording medium is irradiated with a light beam, the readout layer separates into three regions: a region in an in-plane magnetization state, a region in a perpendicular magnetization state, and a region having a temperature not lower than the Curie temperature thereof. Only the region in the perpendicular magnetization state allows copying of the magnetization of the recording layer. Therefore, even when the diameter and intervals of recording bits on the recording layer are very small, it is possible to reproduce a target recording bit separately from a recording bit adjacent to the target recording bit.
摘要翻译：本发明的磁光记录介质具有由垂直磁化膜构成的记录层和在室温下处于面内磁化状态的读出层，随温度升高而变为垂直磁化状态。当磁光记录介质被光束照射时，读出层分为三个区域：面内磁化状态的区域，垂直磁化状态的区域和温度不低于居里温度。只有垂直磁化状态的区域才允许复制记录层的磁化。因此，即使当记录层上的记录位的直径和间隔非常小时，也可以与目标记录位相邻的记录位分开再现目标记录位。

4. 发明授权

US5638111A Optical probe element, and a recording and reproduction device using the optical probe element 失效
标题翻译：光学探针元件，以及使用光学探针元件的记录和再现装置
公开(公告)号：US5638111A
公开(公告)日：1997-06-10
申请号：US247644
申请日：1994-05-23
申请人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi
发明人： Junji Hirokane , Hiroyuki Katayama , Akira Takahashi
IPC分类号： G02B5/00 , B41J2/455 , B41J2/46 , G01Q60/18 , G01Q60/22 , G01Q80/00 , G02B6/24 , G11B7/135 , G11B7/22 , B41J2/47 , G01D15/34 , G02B26/00 , G02B27/00
CPC分类号： G11B7/1387 , B41J2/45 , B41J2/46 , B82Y20/00 , B82Y35/00 , G01Q60/22 , G11B7/1384 , B82Y10/00 , G02B6/241 , Y10S977/862
摘要： An optical probe element for focusing light from a light source into micro light of a diameter not larger than the diffraction limit, includes a light transmitting flat substrate and an optical probe formed on one of the surfaces of the flat substrate. The optical probe has a substantially conical light transmitting projection, and a reflective film which covers the conical surface of the projection so that the tip of the projection is exposed. The optical probe element enables the optical probe to be formed on the flat substrate using a semiconductor processing technique, thereby achieving efficient mass production of a standardized optical probe element. Thus, a recording and reproduction apparatus using the optical probe element is efficiently mass-produced.
摘要翻译：用于将来自光源的光聚焦到直径不大于衍射极限的微光的光学探针元件包括形成在平坦基板的一个表面上的透光平坦基板和光学探针。光学探头具有基本上圆锥形的透光突起和覆盖突起的锥形表面的反射膜，使得突起的尖端被暴露。光探头元件使得能够使用半导体处理技术在平面基板上形成光学探针，从而实现标准化的光学探测元件的高效批量生产。因此，有效地大量生产使用光学探针元件的记录和再现装置。

5. 发明授权

US5629908A Magneto-optical recording medium having magnetization variable between in-plane magnetization and perpendicular magnetization 失效
标题翻译：具有在面内磁化和垂直磁化之间的磁化可变的磁光记录介质
公开(公告)号：US5629908A
公开(公告)日：1997-05-13
申请号：US536168
申请日：1995-09-29
申请人： Junji Hirokane , Junichiro Nakayama , Michinobu Mieda , Akira Takahashi
发明人： Junji Hirokane , Junichiro Nakayama , Michinobu Mieda , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10586 , G11B11/10506 , G11B11/10515 , G11B11/10521 , G11B11/10595
摘要： A magneto-optical recording medium comprising a readout layer, an intermediate layer, and a recording layer. Two light beams having high and low light intensities respectively are applied while applying an external magnetic field. The magnetization direction of the recording layer is changed according to information, by reversing the sub-lattice magnetic moment of the readout layer in the case of the high light intensity. The intermediate layer exhibits a perpendicular magnetization during the irradiation, and also exhibits an in-plane magnetization at room temperature. Since it is not necessary to provide a device for generating a magnetic field for initializing every recording, it is possible to avoid increase in the size of the recording and reproducing apparatus. Moreover, the magnetization direction of the readout layer can be easily controlled with an external magnetic field, and the optical modulation overwriting property can be stabilized.
摘要翻译：包括读出层，中间层和记录层的磁光记录介质。在施加外部磁场的同时施加具有高和低光强度的两个光束。在高光强度的情况下，通过反转读出层的亚晶格磁矩，根据信息改变记录层的磁化方向。中间层在照射期间表现出垂直磁化，并且在室温下也表现出平面内的磁化强度。由于不需要提供用于产生用于初始化每个记录的磁场的装置，因此可以避免记录和再现装置的尺寸的增加。此外，可以通过外部磁场容易地控制读出层的磁化方向，并且可以稳定光学调制重写特性。

6. 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。

7. 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。

8. 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.

9. 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。

10. 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％。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式