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1. 发明申请

US20130057977A1 MAGNETIC RECORDING REPRODUCING APPARATUS AND MAGNETIC RECORDING MEDIUM 有权
标题翻译：磁记录重放装置和磁记录介质
公开(公告)号：US20130057977A1
公开(公告)日：2013-03-07
申请号：US13586984
申请日：2012-08-16
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B21/02 , G11B5/82
CPC分类号： G11B5/09 , G11B5/012 , G11B2005/0005
摘要： In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in
摘要翻译：在盘形磁记录介质的信息记录区域中，相对于径向相邻的记录柱形成为在径向上彼此部分重叠。选择性地执行第一记录和第二记录。在第一记录中，形成第一记录列，第二记录列（第一记录列的外相邻记录列）和第三记录列（第二记录列的外相邻记录列），使得径向位置第一记录列的内周边缘和第二记录列的外圆周边缘和第三记录列的内圆周边缘和外圆周边缘满足R1in

2. 发明申请

US20100328800A1 Magnetic recording apparatus and magnetic recording evaluating apparatus 有权
标题翻译：磁记录装置和磁记录评估装置
公开(公告)号：US20100328800A1
公开(公告)日：2010-12-30
申请号：US12802622
申请日：2010-06-10
申请人： Toshihiko Sakai , Masaki Yamamoto , Yasuhiro Harada , Go Mori , Hideharu Tajima , Yoshiteru Murakami
发明人： Toshihiko Sakai , Masaki Yamamoto , Yasuhiro Harada , Go Mori , Hideharu Tajima , Yoshiteru Murakami
IPC分类号： G11B27/36
CPC分类号： G11B5/012 , B82Y10/00 , G11B5/746 , G11B19/048 , G11B20/10009 , G11B20/10222 , G11B20/10388 , G11B20/10398 , G11B20/1217 , G11B2005/0013 , G11B2005/0024 , G11B2020/1281 , G11B2020/1298 , G11B2220/252
摘要： A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code. The program code includes a test module, responsive to a test write start signal, for repeating writing and reading test information by the magnetic writing and reading elements and calculating a quality index value representing quality of writing of the reproduced test information with the setting information changed, and a write module for selecting setting information with which the quality index value satisfies a predetermined condition, and writing the selected information in the memory.
摘要翻译：磁记录装置包括：磁记录介质，具有记录表面，多个彼此磁隔离的磁记录单元布置在该记录表面上; 磁性写入元件根据设定信息将信息记录到磁记录单元; 磁读取元件再现记录在磁记录单元中的信息; 存储用于写入的设置信息的存储器; 以及用于执行程序代码的处理器。程序代码包括测试模块，响应于测试写入开始信号，用于通过磁性写入和读取元件重复写入和读取测试信息，并且计算表示改变的设置信息的再现的测试信息的写入质量的质量指标值以及写入模块，用于选择质量指标值满足预定条件的设置信息，并将所选择的信息写入存储器。

3. 发明授权

US08760784B2 Magnetic recording/reproduction device and magnetic recording medium 有权
标题翻译：磁记录/再现装置和磁记录介质
公开(公告)号：US08760784B2
公开(公告)日：2014-06-24
申请号：US13157646
申请日：2011-06-10
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B5/09
CPC分类号： G11B5/02 , B82Y10/00 , G11B5/746 , G11B2005/0005
摘要： Disclosed is a magnetic recording/reproduction device 2 including: a recording/reproduction head 7; and a recording/reproduction head 7 for detecting a leakage magnetic field of each of the plurality of magnetic recording cells 1 so as to reproduce information, the recording/reproduction head 7 carrying out the recording on the magnetic recording medium 4 so that the magnetic recording medium 4 includes continuous recording regions that (i) satisfy Nmin≧2 and that (ii) include a continuous recording region that satisfies N≠n×Nmin, where N represents a number of magnetic recording cells 1 in a continuous recording region; Nmin represents a minimum value for N; and n represents a positive integer, the continuous recording regions each being a region on a reproduction track in which region magnetic recording cells 1 sharing an identical magnetization direction are sequentially arranged in a circumferential direction of the magnetic recording medium 4.
摘要翻译：公开了一种磁记录/再现装置2，包括：记录/再现头7; 以及记录/再现头7，用于检测多个磁记录单元1中的每个磁记录单元1的泄漏磁场以再现信息，记录/再现头7在磁记录介质4上执行记录，使得磁记录介质4包括（i）满足Nmin≥2并且（ii）包括满足N≠n×Nmin的连续记录区域的连续记录区域，其中N表示连续记录区域中的磁记录单元1的数量; Nmin表示N的最小值; 并且n表示正整数，连续记录区域各自是在磁记录介质4的圆周方向上顺序地布置有共享相同磁化方向的区域磁记录单元1的再现轨道上的区域。

4. 发明授权

US08792194B2 Recording reproducing apparatus and magnetic recording medium 有权
标题翻译：记录重放装置和磁记录介质
公开(公告)号：US08792194B2
公开(公告)日：2014-07-29
申请号：US13446755
申请日：2012-04-13
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B5/02 , G11B27/36
CPC分类号： G11B5/012 , G11B27/30 , G11B27/36 , G11B2220/2516 , G11B2220/93
摘要： A magnetic recording element records information by applying a recording magnetic field to a magnetic recording medium having an information recording area to form a plurality of recording columns extending in a first direction. Recording by the magnetic recording element is performed so that a first recording column and a second recording column formed before the first recording column partially overlap each other in a second direction perpendicular to the first direction, and that a recording start position of the first recording column is positioned upstream, relative to the recording direction, of a recording start position of the second recording column.
摘要翻译：磁记录元件通过对具有信息记录区域的磁记录介质施加记录磁场来记录信息，以形成沿第一方向延伸的多个记录列。执行磁记录元件的记录，使得在第一记录列之前形成的第一记录列和第二记录列在垂直于第一方向的第二方向上部分地彼此重叠，并且第一记录列的记录开始位置相对于记录方向位于第二记录列的记录开始位置的上游。

5. 发明授权

US08467142B2 Recording medium, recording/reproduction device and method for controlling recording/reproduction device 有权
标题翻译：记录介质，记录/再现装置和控制记录/再现装置的方法
公开(公告)号：US08467142B2
公开(公告)日：2013-06-18
申请号：US12589814
申请日：2009-10-28
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B5/09 , G11B5/596
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/012 , G11B5/743 , G11B2005/0002
摘要： A magnetic recording medium includes: tracks each including a magnetic recording section in which information is recorded and a non-magnetic-recording section in which no information is recorded; and nonmagnetic guide sections magnetically separating the tracks from one another. The non-magnetic-recording section is formed integrally with nonmagnetic guide sections. The magnetic recording medium includes at least one pair of a first region in which at least a portion of each of the respective non-magnetic-recording sections of first and second tracks and a portion of a magnetic recording section of a third track coincide with one another at a position along a direction in which the tracks extend; and a second region in which at least a portion of each of the respective non-magnetic-recording sections of the first and third tracks and a portion of a magnetic recording section of the second track coincide with one another at a position along the direction in which the tracks extend.
摘要翻译：磁记录介质包括：各自包括记录有信息的磁记录部分和不记录信息的非磁记录部分的磁道; 和非磁性引导部分将磁道彼此磁性地分离。非磁记录部与非磁性引导部一体形成。磁记录介质包括至少一对第一区域，其中第一和第二轨道的各个非磁记录部分的每一个的至少一部分和第三轨道的磁记录部分的一部分与一个第一区域重合另一个沿着轨道延伸的方向的位置; 以及第二区域，其中第一和第三轨道的各个非磁性记录部分的每一个的至少一部分和第二轨道的磁记录部分的一部分在沿着方向的位置处彼此重合轨道延伸。

6. 发明申请

US20130057978A1 MAGNETIC RECORDING REPRODUCING APPARATUS AND MAGNETIC RECORDING MEDIUM 审中-公开
标题翻译：磁记录重放装置和磁记录介质
公开(公告)号：US20130057978A1
公开(公告)日：2013-03-07
申请号：US13587094
申请日：2012-08-16
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B21/02 , G11B5/82
CPC分类号： G11B5/09 , G11B5/012 , G11B2005/0005
摘要： In an information recording area of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed so as to partially overlap with each other in the radial direction. Each recording column has an overlapping portion which partially overlaps with either of the adjacent recording columns in the radial direction, and a non-overlapping portion which does not overlap with any of the recording columns in the radial direction.
摘要翻译：在盘状磁记录介质的信息记录区域中，相对于径向相邻的记录柱形成为在半径方向上彼此部分重叠。每个记录列具有与径向方向上的相邻记录列中的任一个部分重叠的重叠部分和与径向方向上的任何记录列不重叠的非重叠部分。

7. 发明授权

US08848306B2 Magnetic recording reproducing apparatus and magnetic recording medium 有权
标题翻译：磁记录再现装置和磁记录介质
公开(公告)号：US08848306B2
公开(公告)日：2014-09-30
申请号：US13586984
申请日：2012-08-16
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B5/02 , G11B21/02 , G11B5/012 , G11B5/09 , G11B5/00
CPC分类号： G11B5/09 , G11B5/012 , G11B2005/0005
摘要： In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in
摘要翻译：在盘形磁记录介质的信息记录区域中，相对于径向相邻的记录柱形成为在径向上彼此部分重叠。选择性地执行第一记录和第二记录。在第一记录中，形成第一记录列，第二记录列（第一记录列的外相邻记录列）和第三记录列（第二记录列的外相邻记录列），使得径向位置第一记录列的内周边缘和第二记录列的外圆周边缘和第三记录列的内圆周边缘和外圆周边缘满足R1in

8. 发明授权

US08467140B2 Magnetic recording apparatus and magnetic recording evaluating apparatus 有权
标题翻译：磁记录装置和磁记录评估装置
公开(公告)号：US08467140B2
公开(公告)日：2013-06-18
申请号：US12802622
申请日：2010-06-10
申请人： Toshihiko Sakai , Masaki Yamamoto , Yasuhiro Harada , Go Mori , Hideharu Tajima , Yoshiteru Murakami
发明人： Toshihiko Sakai , Masaki Yamamoto , Yasuhiro Harada , Go Mori , Hideharu Tajima , Yoshiteru Murakami
IPC分类号： G11B27/36 , G11B5/09
CPC分类号： G11B5/012 , B82Y10/00 , G11B5/746 , G11B19/048 , G11B20/10009 , G11B20/10222 , G11B20/10388 , G11B20/10398 , G11B20/1217 , G11B2005/0013 , G11B2005/0024 , G11B2020/1281 , G11B2020/1298 , G11B2220/252
摘要： A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code. The program code includes a test module, responsive to a test write start signal, for repeating writing and reading test information by the magnetic writing and reading elements and calculating a quality index value representing quality of writing of the reproduced test information with the setting information changed, and a write module for selecting setting information with which the quality index value satisfies a predetermined condition, and writing the selected information in the memory.
摘要翻译：磁记录装置包括：磁记录介质，具有记录表面，多个彼此磁隔离的磁记录单元布置在该记录表面上; 磁性写入元件根据设定信息将信息记录到磁记录单元; 磁读取元件再现记录在磁记录单元中的信息; 存储用于写入的设置信息的存储器; 以及用于执行程序代码的处理器。程序代码包括测试模块，响应于测试写入开始信号，用于通过磁性写入和读取元件重复写入和读取测试信息，并且计算表示改变的设置信息的再现的测试信息的写入质量的质量指标值以及写入模块，用于选择质量指标值满足预定条件的设置信息，并将所选择的信息写入存储器。

9. 发明申请

US20120275048A1 RECORDING REPRODUCING APPARATUS AND MAGNETIC RECORDING MEDIUM 有权
标题翻译：记录重放装置和磁记录介质
公开(公告)号：US20120275048A1
公开(公告)日：2012-11-01
申请号：US13446755
申请日：2012-04-13
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B5/02 , G11B27/36
CPC分类号： G11B5/012 , G11B27/30 , G11B27/36 , G11B2220/2516 , G11B2220/93
摘要： A magnetic recording element records information by applying a recording magnetic field to a magnetic recording medium having an information recording area to form a plurality of recording columns extending in a first direction. Recording by the magnetic recording element is performed so that a first recording column and a second recording column formed before the first recording column partially overlap each other in a second direction perpendicular to the first direction, and that a recording start position of the first recording column is positioned upstream, relative to the recording direction, of a recording start position of the second recording column.
摘要翻译：磁记录元件通过对具有信息记录区域的磁记录介质施加记录磁场来记录信息，以形成沿第一方向延伸的多个记录列。执行磁记录元件的记录，使得在第一记录列之前形成的第一记录列和第二记录列在垂直于第一方向的第二方向上部分地彼此重叠，并且第一记录列的记录开始位置相对于记录方向位于第二记录列的记录开始位置的上游。

10. 发明申请

US20110317304A1 MAGNETIC RECORDING/REPRODUCTION DEVICE AND MAGNETIC RECORDING MEDIUM 有权
标题翻译：磁记录/再现设备和磁记录介质
公开(公告)号：US20110317304A1
公开(公告)日：2011-12-29
申请号：US13157646
申请日：2011-06-10
申请人： Toshihiko Sakai , Yoshiteru Murakami
发明人： Toshihiko Sakai , Yoshiteru Murakami
IPC分类号： G11B5/82 , G11B5/09 , G11B5/035 , G11B5/02
CPC分类号： G11B5/02 , B82Y10/00 , G11B5/746 , G11B2005/0005
摘要： Disclosed is a magnetic recording/reproduction device 2 including: a recording/reproduction head 7; and a recording/reproduction head 7 for detecting a leakage magnetic field of each of the plurality of magnetic recording cells 1 so as to reproduce information, the recording/reproduction head 7 carrying out the recording on the magnetic recording medium 4 so that the magnetic recording medium 4 includes continuous recording regions that (i) satisfy Nmin≧2 and that (ii) include a continuous recording region that satisfies N≠n×Nmin, where N represents a number of magnetic recording cells 1 in a continuous recording region; Nmin represents a minimum value for N; and n represents a positive integer, the continuous recording regions each being a region on a reproduction track in which region magnetic recording cells 1 sharing an identical magnetization direction are sequentially arranged in a circumferential direction of the magnetic recording medium 4.
摘要翻译：公开了一种磁记录/再现装置2，包括：记录/再现头7; 以及记录/再现头7，用于检测多个磁记录单元1中的每个磁记录单元1的泄漏磁场以再现信息，记录/再现头7在磁记录介质4上执行记录，使得磁记录介质4包括（i）满足Nmin≥2并且（ii）包括满足N≠n×Nmin的连续记录区域的连续记录区域，其中N表示连续记录区域中的磁记录单元1的数量; Nmin表示N的最小值; 并且n表示正整数，连续记录区域各自是在磁记录介质4的圆周方向上顺序地布置有共享相同磁化方向的区域磁记录单元1的再现轨道上的区域。

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