公开(公告)号：US5514966A

公开(公告)日：1996-05-07

申请号：US036486

申请日：1993-03-24

申请人： Tadashi Kawamura ,  Norio Ohta

发明人： Tadashi Kawamura ,  Norio Ohta

IPC分类号： G01R31/02 ,  G01R31/08 ,  G01R19/00

CPC分类号： G01R31/021

摘要： An inspection method and an inspection apparatus can readily and reliably test a temporarily bundled circuit in which each end of the wires 22A, 22B, 22C, 22D, and 22E is free. A temporary bunling connector 18 is coupled to an inspection connector 19. Each of the wires 22A, 22B, 22C, 22D, and 22E is drawn so that each of the terminals 21 passes between electrodes 11 in a gate electrode unit 5. Each of the indicator lamp 16 on a circuit checker 15 is respectively lit when each of the terminals 21 contacts with each of the electrodes 11 upon passing through the unit 5. The indicator lamp 16 is not lit if there is any fault such as misplacement or breakage of a wire, as there is no electrical communication between the terminal 21 and the electrode 11 in such a case.

摘要翻译： 检查方法和检查装置可以容易且可靠地测试电线22A，22B，22C，22D和22E的每一端自由的临时捆扎电路。 暂时的接头连接器18被连接到检查连接器19.每个电线22A，22B，22C，22D和22E被拉出，使得每个端子21在栅极电极单元5中在电极11之间通过。 当每个端子21在通过单元5时与每个电极11接触时，电路检查器15上的指示灯16分别点亮。如果存在诸如错位或断裂的故障，则指示灯16不亮 在这种情况下，由于在端子21和电极11之间没有电连通。

公开(公告)号：US06671233B1

公开(公告)日：2003-12-30

申请号：US09625278

申请日：2000-07-25

申请人： Katsusuke Shimazaki ,  Yoshitane Tsuburaya ,  Norio Ohta ,  Hitoshi Watanabe ,  Hiroki Takao

发明人： Katsusuke Shimazaki ,  Yoshitane Tsuburaya ,  Norio Ohta ,  Hitoshi Watanabe ,  Hiroki Takao

IPC分类号： G11B1100

CPC分类号： G11B11/10515 ,  G11B11/10593 ,  G11B11/10595

摘要： A magneto-optical recording medium comprises, on a substrate, a dielectric layer, a GdFeCo reproducing layer, a non-magnetic layer, and a TbFeCo recording layer. Upon reproduction, a DC magnetic field Hex is applied in the recording direction, and a reproducing light beam is radiated while being modulated to have a low power and a high power in synchronization with a reproducing clock. The reproducing layer is a magnetic film which changes from in-plane magnetization into perpendicular magnetization at a critical temperature Tcr, which has a compensation temperature Tcomp between room temperature and a Curie temperature Tc, and which satisfies Troom

摘要翻译： 磁光记录介质在基板上包括电介质层，GdFeCo再现层，非磁性层和TbFeCo记录层。 在再现时，在记录方向上施加DC磁场Hex，并且在再现时钟同步的同时，将被再调制的再现光束照射成具有低功率和高功率。 再现层是在室温和居里温度Tc之间具有补偿温度Tcomp的临界温度Tcr从平面内磁化转变为垂直磁化的磁性膜，其满足Troom

公开(公告)号：US06424601B1

公开(公告)日：2002-07-23

申请号：US09142747

申请日：1998-11-16

申请人： Satoru Oonuki ,  Masafumi Yoshihiro ,  Nobuyuki Nagai ,  Katsusuke Shimazaki ,  Hiroyuki Awano ,  Hiroshi Shirai ,  Norio Ohta ,  Satoshi Sumi ,  Atsushi Yamaguchi

发明人： Satoru Oonuki ,  Masafumi Yoshihiro ,  Nobuyuki Nagai ,  Katsusuke Shimazaki ,  Hiroyuki Awano ,  Hiroshi Shirai ,  Norio Ohta ,  Satoshi Sumi ,  Atsushi Yamaguchi

IPC分类号： G11B1100

CPC分类号： G11B11/10515 ,  G11B7/00745 ,  G11B11/10508 ,  G11B11/10521 ,  G11B11/10528 ,  G11B11/10578 ,  G11B11/10584 ,  G11B11/10593 ,  G11B11/10595 ,  G11B27/19 ,  G11B27/3027

摘要： A magneto-optical recording medium 11 has, in order from the laser irradiation side, a second auxiliary magnetic film 4, first auxiliary magnetic film 5, and magneto-optical recording film 6. First and second auxiliary magnetic films 4 and 5 change from in-plane magnetization to perpendicular magnetization when their respective critical temperatures TCR1 and TCR2 are exceeded. The Curie temperatures TC0, TC1 and TC2 of the magneto-optical recording film and the first and the second auxiliary magnetic films 4, 5 and their critical temperatures TCR1 and TCR2 satisfy the relationship: room temperature

摘要翻译： 磁光记录介质11从激光照射侧起依次具有第二辅助磁性膜4，第一辅助磁性膜5和磁光记录膜6.第一和第二辅助磁性膜4和5从 当它们各自的临界温度TCR1和TCR2被超过时，平面磁化对垂直磁化。 磁光记录膜和第一和第二辅助磁膜4,5的居里温度TC0，TC1和TC2及其临界温度TCR1和TCR2满足关系：室温

公开(公告)号：US06385140B2

公开(公告)日：2002-05-07

申请号：US09799602

申请日：2001-03-07

申请人： Satoru Ohnuki ,  Norio Ohta ,  Katsusuke Shimazaki ,  Masafumi Yoshihiro ,  Hiroki Takao ,  Hitoshi Watanabe

发明人： Satoru Ohnuki ,  Norio Ohta ,  Katsusuke Shimazaki ,  Masafumi Yoshihiro ,  Hiroki Takao ,  Hitoshi Watanabe

IPC分类号： G11B1100

CPC分类号： G11B11/10515 ,  G11B11/10584 ,  G11B11/10593

摘要： A magneto-optic recording medium includes a second auxiliary magnetic film, a first auxiliary magnetic film and a magneto-optic recording film on a substrate. The auxiliary magnetic films change from in-plane magnetization to vertical magnetization at critical temperatures TCR1 and TCR2. Since they have the relation TCR1>TCR2, the magnetic domain transferred from the magneto-optic recording film to the first auxiliary magnetic film at the time of reproduction is expanded in diameter and is transferred to the second auxiliary magnetic film when the temperature profiles of the auxiliary magnetic films inside an optical spot are utilized. The magnetic domain of the magneto-optic recording film can be expanded and transferred, too, by means of magnetostatic coupling by using a non-magnetic film in place of the first auxiliary magnetic film. Pulse reproduction light subjected to power modulation in synchronism with a reproduction clock can be used at the time of reproduction. Even when a very small magnetic domain is recorded, the intensity of an amplified reproduction signal can be detected and excellent C/N can be obtained.

摘要翻译： 磁光记录介质包括在基板上的第二辅助磁膜，第一辅助磁膜和磁光记录膜。 在临界温度TCR1和TCR2下，辅助磁膜从面内磁化转变为垂直磁化。 由于它们具有关系TCR1> TCR2，所以在再现时从磁光记录膜转移到第一辅助磁性膜的磁畴的直径扩大并且当第二辅助磁性膜的温度分布 利用光点内的辅助磁膜。 磁光记录膜的磁畴也可以通过使用非磁性膜代替第一辅助磁性膜的静磁耦合来扩展和转移。 在再现时可以使用经受与再现时钟同步的功率调制的脉冲再现光。 即使记录非常小的磁畴，也可以检测出放大的再现信号的强度，可以获得优异的C / N。

公开(公告)号：US06226234B1

公开(公告)日：2001-05-01

申请号：US09091480

申请日：1998-06-19

申请人： Satoru Ohnuki ,  Norio Ohta ,  Katsusuke Shimazaki ,  Masafumi Yoshihiro ,  Hiroki Takao ,  Hitoshi Watanabe

发明人： Satoru Ohnuki ,  Norio Ohta ,  Katsusuke Shimazaki ,  Masafumi Yoshihiro ,  Hiroki Takao ,  Hitoshi Watanabe

IPC分类号： G11B1100

CPC分类号： G11B11/10515 ,  G11B11/10584 ,  G11B11/10593

摘要： A magneto-optic recording medium includes a second auxiliary magnetic film, a first auxiliary magnetic film and a magneto-optic recording film on a substrate. The auxiliary magnetic films change from in-plane magnetization to vertical magnetization at critical temperatures TCR1 and TCR2. Since they have the relation TCR1>TCR2, the magnetic domain transferred from the magneto-optic recording film to the first auxiliary magnetic film at the time of reproduction is expanded in diameter and is transferred to the second auxiliary magnetic film when the temperature profiles of the auxiliary magnetic films inside an optical spot are utilized. The magnetic domain of the magneto-optic recording film can be expanded and transferred, too, by means of magnetostatic coupling by using a non-magnetic film in place of the first auxiliary magnetic film. Pulse reproduction light subjected to power modulation in synchronism with a reproduction clock can be used at the time of reproduction. Even when a very small magnetic domain is recorded, the intensity of an amplified reproduction signal can be detected and excellent C/N can be obtained.

摘要翻译： 磁光记录介质包括在基板上的第二辅助磁膜，第一辅助磁膜和磁光记录膜。 在临界温度TCR1和TCR2下，辅助磁膜从面内磁化转变为垂直磁化。 由于它们具有关系TCR1> TCR2，所以在再现时从磁光记录膜转移到第一辅助磁性膜的磁畴的直径扩大并且当第二辅助磁性膜的温度分布 利用光点内的辅助磁膜。 磁光记录膜的磁畴也可以通过使用非磁性膜代替第一辅助磁性膜的静磁耦合来扩展和转移。 在再现时可以使用经受与再现时钟同步的功率调制的脉冲再现光。 即使记录非常小的磁畴，也可以检测出放大的再现信号的强度，可以获得优异的C / N。

公开(公告)号：US6061307A

公开(公告)日：2000-05-09

申请号：US737365

申请日：1996-11-08

申请人： Katsusuke Shimazaki ,  Masafumi Yoshihiro ,  Akito Sakemoto ,  Norio Ohta ,  Osamu Ishizaki ,  Satoru Ohnuki ,  Toshinori Sugiyama ,  Kazuko Ishitsuka

发明人： Katsusuke Shimazaki ,  Masafumi Yoshihiro ,  Akito Sakemoto ,  Norio Ohta ,  Osamu Ishizaki ,  Satoru Ohnuki ,  Toshinori Sugiyama ,  Kazuko Ishitsuka

IPC分类号： G11B11/105 ,  G11B11/00

CPC分类号： G11B11/10515 ,  G11B11/10502 ,  G11B11/1051 ,  G11B11/10528 ,  G11B11/10534 ,  G11B11/10586 ,  G11B11/10508 ,  G11B11/10521 ,  G11B11/1053 ,  G11B11/10554 ,  G11B11/10595

摘要： On a surface of a transparent substrate 1 having a preformat pattern 2 formed thereon are laminated a first recording layer 4 in which a recording state exists in one different magnetic field region of an applied external magnetic field and a second recording layer 6 in which two recording states exist in magnetic field regions different from that for the first recording layer. As required, dielectric layers 3, 5 and 7, a reflecting layer 8 and a protection layer 9 can be laminated. The 4-valued recording of information becomes possible by assigning information signals "1", "0", "3" and "2" to H.sub.0, H.sub.1, H.sub.2 and H.sub.3, respectively.

摘要翻译： PCT No.PCT / JP95 / 00888 Sec。 371日期：1996年11月8日 102（e）日期1996年11月8日PCT提交1995年5月10日PCT公布。 公开号WO95 / 30986 日期：1995年11月16日在其上形成有预格式化图案2的透明基板1的表面上层叠有第一记录层4，其中记录状态存在于施加的外部磁场的一个不同的磁场区域中，第二记录层 6，其中两个记录状态存在于与第一记录层不同的磁场区域中。 根据需要，可以层压电介质层3,5和7，反射层8和保护层9。 分别向H0，H1，H2和H3分配信息信号“1”，“0”，“3”和“2”，信息的4值记录成为可能。

公开(公告)号：US5959943A

公开(公告)日：1999-09-28

申请号：US932056

申请日：1997-09-17

申请人： Seiji Yonezawa ,  Norio Ohta ,  Toshio Niihara ,  Keiji Kataoka ,  Masahiko Takahashi ,  Harukazu Miyamoto ,  Hirofumi Sukeda ,  Toshiaki Tsuyoshi

发明人： Seiji Yonezawa ,  Norio Ohta ,  Toshio Niihara ,  Keiji Kataoka ,  Masahiko Takahashi ,  Harukazu Miyamoto ,  Hirofumi Sukeda ,  Toshiaki Tsuyoshi

IPC分类号： G11B20/10 ,  G11B5/02 ,  G11B7/006 ,  G11B7/007 ,  G11B11/10 ,  G11B11/105 ,  G11B27/19 ,  G11B27/30 ,  G11B11/00

CPC分类号： G11B7/00745 ,  G11B11/10513 ,  G11B11/10521 ,  G11B11/10528 ,  G11B11/1053 ,  G11B11/10595 ,  G11B27/19 ,  G11B27/3027 ,  G11B7/006

摘要： A magneto-optical data recording system comprises magnetic field pulse applying means for applying to a magneto-optic recording medium a magnetic field pulse of a polarity corresponding to code data to be recorded, and means for heating the recording medium in a pulsating manner at a predetermined frequency synchronous with the code data to be recorded. During recording, the magnetic field pulse applying means applies a magnetic field pulse of a polarity corresponding to code data along a track of the recording medium and the heating means continuously heats the recording medium in a pulsating manner at a predetermined frequency synchronous with the code data to thereby directly overwrite the code data. The magnetic field pulse applying means includes a magnetic coil driven by code data from a source of code data (data generator). The heating means includes an optical head which comprises a source of laser beam driven by a laser driver and an optical system which focuses the laser beam from the source of laser beam as a small light spot onto the recording medium.

摘要翻译： 一种磁光数据记录系统，包括磁场脉冲施加装置，用于向磁光记录介质施加与要记录的代码数据相对应的极性的磁场脉冲，以及用于以脉动方式加热记录介质的装置， 与要记录的代码数据同步的预定频率。 在记录期间，磁场脉冲施加装置沿着记录介质的轨道施加与代码数据对应的极性的磁场脉冲，并且加热装置以与代码数据同步的预定频率的脉动方式连续地加热记录介质 从而直接覆盖代码数据。 磁场脉冲施加装置包括由代码数据源（数据发生器）的代码数据驱动的磁线圈。 加热装置包括光学头，其包括由激光驱动器驱动的激光束源和将来自激光源的激光束作为小光点聚焦到记录介质上的光学系统。

公开(公告)号：US5637411A

公开(公告)日：1997-06-10

申请号：US227673

申请日：1994-04-14

申请人： Katsusuke Shimazaki ,  Satoru Ohnuki ,  Masatoshi Hashimoto ,  Yoshinori Shirai ,  Norio Ohta ,  Hideo Fujiwara ,  Masafumi Yoshihiro ,  Yukinori Yamada ,  Eiji Koyama ,  Hitoshi Furusho

发明人： Katsusuke Shimazaki ,  Satoru Ohnuki ,  Masatoshi Hashimoto ,  Yoshinori Shirai ,  Norio Ohta ,  Hideo Fujiwara ,  Masafumi Yoshihiro ,  Yukinori Yamada ,  Eiji Koyama ,  Hitoshi Furusho

IPC分类号： G11B7/26 ,  G11B11/105 ,  G11B5/66

CPC分类号： G11B11/10591 ,  G11B11/10584 ,  G11B11/10586 ,  G11B11/10589 ,  G11B7/26 ,  Y10S428/90 ,  Y10T428/12771 ,  Y10T428/12931

摘要： Disclosed is a magneto-optical recording medium which comprises a transparent substrate and, provided on the substrate, a magneto-optical recording film comprising a perpendicular magnetic film based on rare earth metal-transition metal and an auxiliary magnetic film having spontaneous magnetization which exerts, between itself and the magneto-optical recording film, an exchange coupling force and wherein the auxiliary magnetic film is a magnetic film which readily rotates its magnetization direction toward the external magnetic field in the neighborhood of the Curie temperature of the magneto-optical recording film and has a squareness ratio of not more than 1 in the neighborhood of the Curie temperature. Also disclosed is a process for producing the magneto-optical recording medium.

摘要翻译： 公开了一种磁光记录介质，其包括透明基板，并且在基板上设置包括基于稀土金属 - 过渡金属的垂直磁性膜和具有自发磁化的辅助磁膜的磁光记录膜， 介于其自身与磁光记录膜之间的交换耦合力，并且其中辅助磁膜是在磁光记录膜的居里温度附近容易地将其磁化方向旋转到外部磁场的磁性膜， 在居里温度附近具有不大于1的矩形比。 还公开了一种用于制造磁光记录介质的方法。

公开(公告)号：US5224050A

公开(公告)日：1993-06-29

申请号：US554419

申请日：1990-07-19

申请人： Norio Ohta ,  Yoshio Wakazono

发明人： Norio Ohta ,  Yoshio Wakazono

IPC分类号： B24B47/22 ,  B23Q17/22 ,  G05B19/401

CPC分类号： G05B19/4015

摘要： A method for detecting the coordinate position of the grinding point of a grinding wheel supported on a swiveling table comprises the steps of: rotating drivably the swiveling table through a specified angle from a start position so as to arrive at a first turning position; measuring a first displacement of the grinding point of the grinding wheel from the start position by displacement measuring means; rotating the swiveling table through the specified angle from the first turning position so as to arrive at a second turning position; measuring a second displacement of the grinding point of the griding wheel from the first turning position by the displacement measuring means; and calculating the position of the grinding wheel with respect to the swivel axis of swiveling table according to the first and the second displacement and the specified angle.

公开(公告)号：US5083226A

公开(公告)日：1992-01-21

申请号：US410495

申请日：1989-09-21

申请人： Kazuo Shiiki ,  Yoshihiro Shiroishi ,  Norio Ohta ,  Toshiaki Tsuyoshi ,  Hisashi Takano ,  Fumio Kugiya

发明人： Kazuo Shiiki ,  Yoshihiro Shiroishi ,  Norio Ohta ,  Toshiaki Tsuyoshi ,  Hisashi Takano ,  Fumio Kugiya

IPC分类号： G11B5/596 ,  G11B5/82

CPC分类号： G11B5/82 ,  G11B5/596 ,  G11B5/59683

摘要： A magnetic-disk drive includes: a magnetic disk having a ridge pattern consisting of at least one ridge extending in the circumferential direction; a recording/reproduction head arranged over the surface of the magnetic disk and having a track width larger than the width of the ridge of the pattern and smaller than the pattern pitch; a device for rotating the magnetic disk; and a recording/reproduction circuit.

摘要翻译： 磁盘驱动器包括：磁盘，其具有由沿圆周方向延伸的至少一个脊的脊图形; 记录/再现头，布置在磁盘的表面上，并且具有比图案的脊的宽度大于图案间距的轨道宽度; 用于旋转磁盘的装置; 和记录/再现电路。