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1. 发明授权

US5193082A Optical/magnetic composite head having magnetic and optical heads in one integrated unit 失效
标题翻译：在一个集成单元中具有磁性和光学头的光学/磁性复合头
公开(公告)号：US5193082A
公开(公告)日：1993-03-09
申请号：US502104
申请日：1990-03-29
申请人： Tomoyuki Miyake , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Tomoyuki Miyake , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B5/02 , G11B5/127 , G11B7/12 , G11B7/135 , G11B11/105
CPC分类号： G11B7/1353 , G11B11/10532 , G11B11/10536 , G11B11/10554 , G11B7/124 , G11B11/1058 , G11B2007/13722
摘要： A photomagnetic composite head comprising a magnetic head and an optical head that are integrated into one unit, an optical waveguide path of the optical head being located in the surface of the magnetic head that faces a recording medium, and a laser beam that passes through the optical waveguide path being irradiated on a point on the recording medium where a magnetic field is impressed from the magnetic head, whereby recording can be performed under a condition in which the coercivity of the recording medium has been lowered by the laser beam, thus making it possible to achieve high density recording by using a recording medium with a high coercivity.

2. 发明授权

US5175721A Magneto-optical recording and reading device with initilization 失效
标题翻译：具有启动的磁光记录和读取装置
公开(公告)号：US5175721A
公开(公告)日：1992-12-29
申请号：US575013
申请日：1990-08-30
申请人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
发明人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B19/02
CPC分类号： G11B11/10595 , G11B11/10517 , G11B11/10523 , G11B11/1056 , G11B19/02
摘要： A recording and reading method and device of magneto-optical memory elements are provided to record and read an information signal to and from the magneto-optical memory elements, which contain at least two magnetic layers that are magnetically coupled, by means of a light-intensity modulated overwriting method employing a recording magnetic field and an initializing magnetic field feature is included for applying the initializing magnetic field to the magneto-optical memory elements at least one time between the point of time when moving the magneto-optical memory elements to a recording or reading position, finishing a reading or recording, and ascertaining the selected operation such as recording or erasing and the point of time when subsequent recording begins such that the initializing magnetic field is not applied at the same time as the recording magnetic field.

3. 发明授权

US5107471A Magnetic head having a rectangular configuration for use in a magneto-optical recording system 失效
标题翻译：具有用于磁光记录系统的矩形配置的磁头
公开(公告)号：US5107471A
公开(公告)日：1992-04-21
申请号：US594302
申请日：1990-10-09
申请人： Tomoyuki Miyake , Kenji Ohta , Hiroyuki Katayama , Junichiro Nakayama
发明人： Tomoyuki Miyake , Kenji Ohta , Hiroyuki Katayama , Junichiro Nakayama
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/1058 , G11B11/10536
摘要： A floating type magnetic head for magneto-optical recording, the magnetic head being positioned opposite to an optical head with a magneto-optical recording medium inserted therebetween. The magnetic head is supported out of contact with the magneto-optical recording medium and includes a slider and a head core. The head core has an end section located parallel to the magneto-optical medium. The end section is formed to be longer in the direction orthogonal to the tracks contained on the medium than in the direction parallel to the tracks.

4. 发明授权

US5231613A Magneto-optical recording device 失效
标题翻译：磁光记录装置
公开(公告)号：US5231613A
公开(公告)日：1993-07-27
申请号：US640109
申请日：1991-01-11
申请人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
发明人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B5/40 , G11B5/60 , G11B11/105 , G11B23/50 , G11B33/14
CPC分类号： G11B5/6005 , G11B11/1058 , G11B23/505 , G11B33/148 , G11B5/6082 , G11B5/40 , G11B5/6011
摘要： A magneto-optical recording device has a flying head that floats over a magneto-optical disk according to the rotation of the magneto-optical disk. The flying head includes a head slider. A solid lubricant is applied to the bottom surface of the head slider facing the magneto-optical disk. Since the solid lubricant makes the flying head contact with the magneto-optical disk smoothly, the scratching and wear of the magneto-optical disk and the flying head decrease. Therefore, the reliability and the durability of the magneto-optical recording device can improve. Physical protrusions and recessions or holes containing fluorocarbon oil therein may be formed instead of the solid lubricant. In this case, the contact area between the flying head and the magneto-optical disk is also smaller than the case where physical protrusions and recessions are not formed. In addition, with a configuration such that thin-film layers made of a fluorocarbon resin having an excellent lubricity are formed on both sides of the bottom surface of the head slider, since the magneto-optical disk comes into contact with the head smoothly, the reliability and the durability of the magneto-optical recording device can improve.

5. 发明授权

US5095350A Magneto-optic memory medium 失效
标题翻译：磁光存储介质
公开(公告)号：US5095350A
公开(公告)日：1992-03-10
申请号：US505476
申请日：1990-04-06
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Tomokazu Ise , Tomoyuki Miyake , Junichiro Nakayama
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Tomokazu Ise , Tomoyuki Miyake , Junichiro Nakayama
IPC分类号： G11B11/10 , G11B11/105 , H01F10/08
CPC分类号： G11B11/10586 , Y10S428/928 , Y10T428/12861
摘要： A magneto-optic memory medium of an exchange-coupled ferrimagnetic double-layered structure having a recording film of a specific amorphous GdTbFe alloy and a reading film of a specific amorphous GdNdFe alloy.
摘要翻译：具有特定无定形GdTbFe合金的记录膜和特定无定形GdNdFe合金的读取膜的交换耦合铁磁双层结构的磁光存储介质。

6. 发明授权

US5077714A Magneto-optical recording and reproducing device using the modulation of intensities of the magnetic field and light beam 失效
标题翻译：使用磁场和光束的强度调制的磁光记录和再现装置
公开(公告)号：US5077714A
公开(公告)日：1991-12-31
申请号：US340771
申请日：1989-04-20
申请人： Hiroyuki Katayama , Kenji Ohta , Junichiro Nakayama , Tomoyuki Miyake , Akira Takahashi
发明人： Hiroyuki Katayama , Kenji Ohta , Junichiro Nakayama , Tomoyuki Miyake , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/1051 , G11B11/10515 , G11B11/10521 , G11B11/10528
摘要： A magneto-optical recording and reproducing device for recording and reproducing data determined by negative magnetized areas in a magneto-optical recording medium. The device including a laser beam output level control means for controlling the intensity of a laser beam when recording data on the medium. The device prevents the causes of false signals and incorrect detection influenced by residual negative magnetized domains by increasing laser beam intensity when rewriting positive magnetized areas to erase residual negative magnetized areas.

7. 发明授权

US5343448A External magnetic field device for a magnetooptical information recording and reproducing apparatus 失效
标题翻译：用于磁光信息记录和再现装置的外部磁场装置
公开(公告)号：US5343448A
公开(公告)日：1994-08-30
申请号：US949335
申请日：1992-09-22
申请人： Tomoyuki Miyake , Hiroyuki Katayama , Junichiro Nakayama , Takahiro Miyake , Kenji Ohta , Shozo Kobayashi
发明人： Tomoyuki Miyake , Hiroyuki Katayama , Junichiro Nakayama , Takahiro Miyake , Kenji Ohta , Shozo Kobayashi
IPC分类号： G11B11/105 , G11B11/00 , G11B11/10
CPC分类号： G11B11/10508
摘要： An external magnetic field device for a magnetooptical information recording and reproducing apparatus in which an external magnetic field to be applied to a magnetooptical information recording medium is modulated by supplying to a magnetic head an alternate current the polarity of which is changed according to information to be recorded. The device comprises an offset circuit for producing an offset in the alternate current. The direction of the offset is selected so as to increase the current level of the polarity by which the initial magnetization of the information recording medium is reversed. The direction of the offset may be selected so as to cancel the leakage magnetic field.
摘要翻译：一种用于磁光信息记录和再现装置的外部磁场装置，其中通过向磁头提供施加到磁光信息记录介质的外部磁场，该极性的极性根据要被改变的信息而改变记录。该装置包括用于在交流电中产生偏移的偏置电路。选择偏移的方向，以便增加信息记录介质的初始磁化反转的极性的电流电平。可以选择偏移的方向以抵消泄漏磁场。

8. 发明授权

US5338646A Optical memory device having an improved light reflection or optical memory layer 失效
标题翻译：具有改进的光反射或光存储层的光存储器件
公开(公告)号：US5338646A
公开(公告)日：1994-08-16
申请号：US15066
申请日：1993-02-08
申请人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kazuo Van , Kenji Ohta
发明人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kazuo Van , Kenji Ohta
IPC分类号： G11B7/24 , G11B7/244 , G11B7/247 , G11B7/248 , G11B7/251 , G11B7/254 , G11B7/257 , G11B7/258 , G03C1/72 , G11B5/702 , G11B5/706
CPC分类号： G11B7/258 , G11B7/244 , G11B7/2472 , G11B7/248 , G11B7/251 , G11B2007/24308 , G11B7/2533 , G11B7/2534 , G11B7/2542 , G11B7/2585 , G11B7/259 , G11B7/2595 , Y10S428/90 , Y10S430/146
摘要： An optical memory device comprising at least one transparent substrate and a light reflection layer or an optical memory layer laminated on one surface of the substrate, in which the light reflection layer or the optical memory layer is constituted with a UV-ray or electron-ray cured resin dispersingly containing a light reflective metal powder or an optical recording material.
摘要翻译：一种光学存储器件，包括至少一个透明基板和层叠在基板的一个表面上的光反射层或光学存储器层，其中光反射层或光学存储器层由UV射线或电子射线分散含有光反射金属粉末或光学记录材料的固化树脂。

9. 发明授权

US5303100A Magnetic disk device with floating-type magnetic head 失效
标题翻译：带浮动磁头的磁盘装置
公开(公告)号：US5303100A
公开(公告)日：1994-04-12
申请号：US752052
申请日：1991-08-29
申请人： Junichiro Nakayama , Hiroyuki Katayama , Tomoyuki Miyake , Kenji Ohta
发明人： Junichiro Nakayama , Hiroyuki Katayama , Tomoyuki Miyake , Kenji Ohta
IPC分类号： G11B21/21 , G11B5/54 , G11B11/10 , G11B11/105 , G11B19/20 , G11B21/12 , G11B5/55
CPC分类号： G11B19/20 , G11B11/10556 , G11B11/1058 , G11B11/10586 , G11B11/10595 , G11B5/54
摘要： A magnetic disk device having a floating-type magnetic head, for use with a disk-shaped recording medium having a sliding area for the floating-type magnetic head formed outside a recording area. The length in the disk radial direction of a suspension supporting the floating-type magnetic head is varied depending on individual magnetic disk devices. In another arrangement, a control means is provided for setting two reference values so that a radial position of the floating-type magnetic head detected by a detection section is compared with these reference values, and for alternating one of the preset reference values to the other reference value upon receiving a rotation stop signal. In still another arrangement, control means is provided, whereby a radial position for sliding of the floating-type magnetic head is randomly varied within the sliding area. According to these arrangements, since the radial position for sliding of the floating-type magnetic head is varied within the sliding area without being located at the same position, abrasion within the sliding area can be dispersed. As a result, it becomes possible to extend the longevities of the floating-type magnetic head and the recording medium.
摘要翻译：一种具有浮动型磁头的磁盘装置，与形成在记录区域之外的浮动型磁头的滑动区域的盘形记录介质一起使用。支撑浮动型磁头的悬架的盘径方向上的长度根据各个磁盘装置而变化。在另一种布置中，提供控制装置用于设置两个参考值，使得由检测部分检测到的浮动型磁头的径向位置与这些参考值进行比较，并且将一个预设参考值与另一个参考值交替接收到旋转停止信号时的参考值。在另一种布置中，提供控制装置，由此浮动式磁头的滑动的径向位置在滑动区域内随机变化。根据这些布置，由于浮动型磁头的滑动的径向位置在滑动区域内变化而不位于相同的位置，所以可以分散滑动区域内的磨损。结果，可以延长浮动型磁头和记录介质的寿命。

10. 发明授权

US5270994A Magneto-optical recording and reading method 失效
标题翻译：磁光记录和读取方法
公开(公告)号：US5270994A
公开(公告)日：1993-12-14
申请号：US931990
申请日：1992-08-19
申请人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
发明人： Junichiro Nakayama , Tomoyuki Miyake , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B11/105 , G11B19/02 , G11B7/00
CPC分类号： G11B11/10595 , G11B11/10517 , G11B11/10523 , G11B11/1056 , G11B19/02
摘要： A recording and reading method and device of magneto-optical memory elements are provided to record and read an information signal to and from the magneto-optical memory elements, which contain at least two magnetic layers that are magnetically coupled, by means of a light-intensity modulated overwriting method employing a recording magnetic field and an initializing magnetic field. A control feature is included for applying the initializing magnetic field to the magneto-optical memory elements at least one time between the point of time when moving the magneto-optical memory elements to a recording or reading position, finishing a reading or recording, and ascertaining the selected operation such as recording or erasing and the point of time when subsequent recording begins such that the initializing magnetic field is not applied at the same time as the recording magnetic field.
摘要翻译：提供磁光存储器元件的记录和读取方法和装置，用于通过发光元件记录和读取与包含至少两个磁耦合的磁层的磁光存储元件的信息信号，采用记录磁场和初始化磁场的强度调制重写方法。包括控制特征，用于在将磁光存储元件移动到记录或读取位置，完成读取或记录之间的时间点之间的至少一个时间将初始化磁场施加到磁光存储元件，并且确定所选择的操作如记录或擦除以及后续记录开始的时间点，使得初始化磁场不与记录磁场同时施加。

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