公开(公告)号：US06628574B1

公开(公告)日：2003-09-30

申请号：US09600030

申请日：2000-07-11

申请人： Katsusuke Shimazaki ,  Hitoshi Watanabe ,  Hiroyuki Awano ,  Masahumi Yoshihiro ,  Norio Ohta

发明人： Katsusuke Shimazaki ,  Hitoshi Watanabe ,  Hiroyuki Awano ,  Masahumi Yoshihiro ,  Norio Ohta

IPC分类号： G11B1100

CPC分类号： B82Y10/00 ,  G11B7/1372 ,  G11B7/24082 ,  G11B11/10515 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/1058 ,  G11B11/10584 ,  G11B11/10593

摘要： A reproducing apparatus for a magneto-optical recording medium has, at one end of a swing arm, a magneto-optical head provided with a slider and a solid immersion lens. A reproducing light beam-detecting system is installed to the other end of the swing arm. During reproduction on a magneto-optical recording medium, an alternating magnetic field is applied while radiating a reproducing light beam which is power-modulated to have a low power and a high power in synchronization with a reproducing clock. The reproducing light beam having the low power causes transfer of a magnetic domain in the information-recording layer to the reproducing layer and magnification thereof. The reproducing light beam having the high power extinguishes the magnified magnetic domain. Minute magnetic domains can be individually reproduced at high C/N.

摘要翻译： 用于磁光记录介质的再现装置在摆臂的一端具有设置有滑块和固体浸没透镜的磁光头。 再现光束检测系统安装在摆臂的另一端。 在磁光记录介质的再现期间，施加交变磁场，同时以与再现时钟同步的方式辐射被功率调制为具有低功率和高功率的再现光束。 具有低功率的再现光束使得信息记录层中的磁畴传输到再现层及其放大倍率。 具有高功率的再现光束消除了放大的磁畴。 分钟磁畴可以高C / N单独再现。

公开(公告)号：US06501729B2

公开(公告)日：2002-12-31

申请号：US10000400

申请日：2001-12-04

申请人： Hitoshi Watanabe ,  Yoshitane Tsuburaya ,  Katsusuke Shimazaki ,  Satoru Ohnuki ,  Norio Ohta

发明人： Hitoshi Watanabe ,  Yoshitane Tsuburaya ,  Katsusuke Shimazaki ,  Satoru Ohnuki ,  Norio Ohta

IPC分类号： G11B370

CPC分类号： G11B23/0306 ,  G11B23/0308

摘要： A plate spring is provided on a back surface of a shutter of a cartridge. When the shutter is closed, the plate spring presses a disk in a cartridge case against an inner wall surface of a lower case so that the disk is immovable in the case. When the shutter is open, the plate spring is retracted into a space between an inner surface of the shutter and a surface of an upper case. The disk is supported immovably and uniformly in the cartridge. Therefore, deformation such as warpage of the disk hardly occurs. Even when the cartridge is stored in any posture, it is possible to avoid deformation such as warpage and flexure of the disk in the cartridge during the storage.

摘要翻译： 板弹簧设置在盒的挡板的后表面上。 当快门关闭时，板簧将盒壳体中的盘压靠在下壳体的内壁表面上，使得盘不可移动到壳体中。 当快门打开时，板簧缩回到快门的内表面和上壳体的表面之间的空间中。 磁盘不可移动地均匀地支撑在磁带盒中。 因此，几乎不发生诸如盘的翘曲等变形。 即使当以任何姿势存储盒时，也可以避免储存期间盒中的盘的翘曲和弯曲等变形。

公开(公告)号：US5783320A

公开(公告)日：1998-07-21

申请号：US781711

申请日：1997-01-10

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 on each other and in which the auxiliary magnetic film used 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, and 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， 在它们自身和磁光记录膜之间，彼此之间的交换耦合力，并且其中使用的辅助磁膜是磁性薄膜，其容易地使其磁化方向在磁光的居里温度附近的外部磁场旋转 - 光学记录膜，并且在居里温度附近具有不大于1的矩形比率，以及用于制造磁光记录介质的工艺。

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：US5319507A

公开(公告)日：1994-06-07

申请号：US857833

申请日：1992-03-26

申请人： Nobuhiro Umebayashi ,  Kazuya Fukunaga ,  Mikio Kishimoto ,  Norio Ohta

发明人： Nobuhiro Umebayashi ,  Kazuya Fukunaga ,  Mikio Kishimoto ,  Norio Ohta

IPC分类号： G11B5/596 ,  G11B5/82 ,  G11B7/095 ,  G11B13/04 ,  G11B21/10

CPC分类号： G11B5/59677

摘要： A magnetic recording/reproducing apparatus and method, the apparatus including a drive mechanism for driving a flexible magnetic disk loaded thereon to rotate, the magnetic disk being comprised of a transparent and flexible base film formed with first and second magnetic layers on both sides thereof, each of the magnetic layers having a film thickness of no greater than 1 .mu.m, surface of the first magnetic layer being flat, the outer surface of the second magnetic layer on the side away from the first magnetic layer, being provided with recesses for tracking servocontrol extending in the direction of rotation of the magnetic disk; a light emitting element for tracking servocontrol arranged on the side of the magnetic disk facing the first magnetic layer; and a light receiving element for receiving a light beam for tracking servocontrol, the light beam having passed through at least the first magnetic layer, the base film and the second magnetic layer after being emitted from the light emitting element, whereby using the light that has passed through the magnetic disk, proper tracking servocontrol is realized with high reliability, while improving an overwrite characteristic and undergoing less noise.

摘要翻译： 一种磁记录/再现装置和方法，该装置包括用于驱动装载在其上以旋转的柔性磁盘的驱动机构，该磁盘由在其两侧形成有第一和第二磁性层的透明柔性基膜组成， 每个磁性层具有不大于1μm的膜厚度，第一磁性层的表面是平坦的，第二磁性层的远离第一磁性层的一侧的外表面设置有用于跟踪的凹部 伺服控制在磁盘的旋转方向上延伸; 用于跟踪伺服控制的发光元件，布置在面对第一磁性层的磁盘侧; 以及用于接收用于跟踪伺服控制的光束的光接收元件，所述光束在从所述发光元件发射之后至少穿过所述第一磁性层，所述基膜和所述第二磁性层，由此使用具有 通过磁盘，实现了高可靠性的适当的跟踪伺服控制，同时提高了重写特性，并且噪音小。

公开(公告)号：US5303512A

公开(公告)日：1994-04-19

申请号：US902822

申请日：1992-06-23

申请人： Toshio Tsujiuchi ,  Tomoyasu Imai ,  Norio Ohta ,  Yukio Oda ,  Ryohei Mukai ,  Hisashi Nakamura ,  Takayuki Yoshimi

发明人： Toshio Tsujiuchi ,  Tomoyasu Imai ,  Norio Ohta ,  Yukio Oda ,  Ryohei Mukai ,  Hisashi Nakamura ,  Takayuki Yoshimi

IPC分类号： B24B1/00 ,  B24B5/01 ,  B24B5/04 ,  B24B49/03 ,  B24B49/04 ,  B24B49/16

CPC分类号： B24B1/00 ,  B24B49/03 ,  B24B49/04 ,  B24B5/01 ,  B24B5/04

摘要： A method and apparatus for grinding a cylindrical surface of a workpiece by a traverse movement of a grinding wheel having a relatively narrow grinding surface. To improve the cylindricity of cylindrical surface, the traverse grinding is divided into a rough traverse grinding and a finish traverse grinding. In the rough traverse grinding, a traverse girding is carried out with a large depth of cut which would causes a deterioration of the cylindricity at one end of the cylindrical surface. In the finish traverse grinding, a traverse girding is carried out with a small depth of cut to improve the cylindricity. In another embodiment, one of grinding conditions such as the traverse speed of the grinding wheel, the rotational speed of the workpiece and the peripheral speed of the grinding wheel is changed when the grinding wheel approaches an end of the cylindrical surface at which the traverse grinding ends so as to make the grinding force constant, thereby improving the cylindricity of the cylindrical surface. In other embodiments, the position of the wheel head is compensated based upon the measured diameter of the cylindrical surface so that the entire area of the cylindrical surface has a desired diameter. This compensation also improves the cylindricity of the cylindrical surface.

摘要翻译： 一种用于通过具有相对窄的研磨表面的砂轮的横移来研磨工件的圆柱形表面的方法和装置。 为了提高圆柱面的圆柱度，横向磨削分为粗加工磨削和精加工磨削。 在粗加工研磨中，以大的切割深度进行横向加工，这将导致圆柱形表面的一端的圆柱度的劣化。 在精加工磨削中，以较小的切削深度进行横向加工以提高圆柱度。 在另一个实施例中，当研磨轮接近圆形表面的端部时，磨削条件（诸如砂轮的横动速度），工件的转速和砂轮的圆周速度之一变化， 使磨削力保持恒定，从而提高圆筒面的圆筒度。 在其他实施例中，基于圆柱形表面的测量直径来补偿轮头的位置，使得圆柱形表面的整个区域具有期望的直径。 该补偿也提高了圆柱面的圆柱度。

公开(公告)号：US5273860A

公开(公告)日：1993-12-28

申请号：US615914

申请日：1993-11-20

申请人： Tetsuya Nishida ,  Shinkichi Horigome ,  Mari Ichikawa ,  Norio Ohta ,  Shuhei Nakamichi ,  Akira Gotoh

发明人： Tetsuya Nishida ,  Shinkichi Horigome ,  Mari Ichikawa ,  Norio Ohta ,  Shuhei Nakamichi ,  Akira Gotoh

IPC分类号： G11B7/013 ,  G11B7/243 ,  G11B7/252 ,  G11B7/257 ,  G11B7/24

CPC分类号： G11B7/257 ,  G11B7/24067 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/24328 ,  G11B7/00453 ,  Y10S430/146

摘要： Disclosed herein is an information recording medium which is composed of a substrate, underlayer, and recording film and is capable of recording information by means of depressions or pits which are formed on the recording film upon irradiation with a recording energy beam, said information recording medium being characterized in that the recording film is provided with a supporting layer on at least one side of the recording film, said supporting layer having a melting point which is lower than that of the recording film, or on that side of the recording film which is adjacent to the substrate, said supporting layer having a melting point which is higher than that of the recording film. Owing to these features, the information recording medium gives recording pits having a smaller rim inner diameter, so that it achieves a high recording power margin for high-density recording.

摘要翻译： 本文公开了一种信息记录介质，其由基板，底层和记录膜构成，并且能够通过在记录能量束照射时在记录膜上形成的凹陷或凹坑来记录信息，所述信息记录介质 其特征在于，记录膜在记录膜的至少一侧上设置有支撑层，所述支撑层的熔点低于记录膜的熔点，或者记录膜的那一侧为 所述支撑层具有比记录膜更高的熔点。 由于这些特征，信息记录介质产生具有较小轮辋内径的记录凹坑，因此其实现高记录功率裕度用于高密度记录。

公开(公告)号：US5183026A

公开(公告)日：1993-02-02

申请号：US852566

申请日：1992-03-17

申请人： Norio Ohta ,  Yukio Oda ,  Toshiaki Naya ,  Tomoyuki Kasuga

发明人： Norio Ohta ,  Yukio Oda ,  Toshiaki Naya ,  Tomoyuki Kasuga

IPC分类号： B24B53/00 ,  G05B19/416

CPC分类号： B24B53/04 ,  G05B19/4166

摘要： A grinding machine having an angular type grinding wheel and a dressing apparatus therefor. The grinding wheel is formed with first and second grinding surfaces usable for grinding a cylindrical surface and shoulder end surface of a workpiece, respectively, and first and second reference surfaces parallel to the first and second grinding surfaces, respectively. The positions of the first and second reference surfaces and the first and second grinding surfaces are detected with touch bars before each dressing operation so as to obtain a first distance between the first grinding surface and first reference surface, and a second distance between the second grinding surface and second reference surface. After that, a first dressing amount for dressing the first grinding surface and a second dressing amount for dressing the second grinding surface are so determined that the first distance and the second distance would have a predetermined constant relationship after dressing operation. The first grinding surface is then dressed by the first dressing amount, while the second grinding surface is dressed by the second dressing amount.

公开(公告)号：US5076022A

公开(公告)日：1991-12-31

申请号：US412443

申请日：1989-09-26

申请人： Norio Ohta ,  Yoshio Wakazono

发明人： Norio Ohta ,  Yoshio Wakazono

IPC分类号： B24B5/12 ,  B24B51/00 ,  G05B19/401 ,  G05B19/416 ,  B24B49/00

CPC分类号： G05B19/4166 ,  B24B51/00 ,  G05B19/4015 ,  G05B2219/37405 ,  G05B2219/45161 ,  G05B2219/50071

摘要： A grinding machine for grinding outer and/or inner surfaces of a workpiece which is provided on its indexable wheel head with an outer surface grinding wheel, inner surface grinding wheel and a measuring device having a touch probe engagable with a reference surface of the workpiece. A numerical controller having a memory for memorizing data indicating positional and angular relationships between the outer surface grinding wheel, the inner surface grinding wheel and the touch probe is provided. The numerical controller first indexes the measuring device to a location facing the workpiece, and moves the workpiece along its rotational axis until the measuring device outputs a touch signal. After that, the numerical controller calculates a moving amount of the workpiece for an outer grinding operation based upon data memorized in the memory, and moves the table by the calculated amount in order to grind the outer surface of the workpiece. When a inner surface of a workpiece is machined, the inner grinding wheel is indexed to a position facing the workpiece based upon the data indicating angular relationship, after the workpiece is positioned based upon the touch signal from the measuring device. Thereafter, the table is moved based upon data indicating positional relationship between the inner surface grinding wheel and the touch probe in order to locate the inner surface grinding wheel to a predetermined grinding starting position of the inner grinding operation.

公开(公告)号：US5038338A

公开(公告)日：1991-08-06

申请号：US598811

申请日：1990-10-17

申请人： Motoyasu Terao ,  Tetsuya Nishida ,  Hiroshi Yasuoka ,  Keikichi Andoo ,  Norio Ohta

发明人： Motoyasu Terao ,  Tetsuya Nishida ,  Hiroshi Yasuoka ,  Keikichi Andoo ,  Norio Ohta

IPC分类号： G11B9/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/125 ,  G11B7/24 ,  G11B7/30

CPC分类号： G11B7/00557 ,  G11B7/24

摘要： A method of recording information by changing a recording medium through irradiation with an energy beam such as a light beam, electron beam or the like. A single pulse or a plurality of pulses are employed for forming recorded dots. The pulse has a pulse width shorter than a time required for the center of energy beam spot to move from one to other end of the dot upon recording thereof. By virtue of the possibility of reversible change even in a recording film susceptible to high rate speed of change, the rate of information transfer can be increased. Overwrite recording can also be accomplished with the single laser beam. An increased amount of information can be handled in the recording and reproduction.

摘要翻译： 通过用诸如光束，电子束等能量束的照射改变记录介质来记录信息的方法。 单脉冲或多脉冲用于形成记录点。 脉冲的脉冲宽度短于在记录时能量束点的中心从点到另一端移动所需的时间。 由于即使在容易受高速率变化的记录膜影响的情况下也可能发生可逆变化，所以可以提高信息传送速度。 也可以用单个激光束实现覆盖记录。 在记录和再现中可以处理增加的信息量。