专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US06676773B2 Rare earth magnet and method for producing the magnet 有权
公开(公告)号：US06676773B2
公开(公告)日：2004-01-13
申请号：US09985671
申请日：2001-11-05
申请人： Yuji Kaneko , Junichiro Baba , Katsuya Taniguchi
发明人： Yuji Kaneko , Junichiro Baba , Katsuya Taniguchi
IPC分类号： H01F1057
CPC分类号： C22C38/002 , B22F9/008 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C1/0441 , C22C38/005 , H01F1/0571 , H01F1/0577 , B22F1/0014 , B22F9/023 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2201/10
摘要： A method of making an alloy powder for an R—Fe—B-type rare earth magnet includes the steps of preparing a material alloy that is to be used for forming the R—Fe—B-type rare earth magnet and that has a chilled structure that constitutes about 2 volume percent to about 20 volume percent of the material alloy, coarsely pulverizing the material alloy for the R—Fe—B-type rare earth magnet by utilizing a hydrogen occlusion phenomenon to obtain a coarsely pulverized powder, finely pulverizing the coarsely pulverized powder and removing at least some of fine powder particles having particle sizes of about 1.0 &mgr;m or less from the finely pulverized powder, thereby reducing the volume fraction of the fine powder particles with the particle sizes of about 1.0 &mgr;m or less, and covering the surface of remaining ones of the powder particles with a lubricant after the step of removing has been performed.

92. 发明授权

US06646825B1 Data storage using disk media 失效
标题翻译：使用磁盘介质进行数据存储
公开(公告)号：US06646825B1
公开(公告)日：2003-11-11
申请号：US09521961
申请日：2000-03-09
申请人： Satoru Kaneda , Hiro Karube , Yuji Kaneko , Jun Ishikawa
发明人： Satoru Kaneda , Hiro Karube , Yuji Kaneko , Jun Ishikawa
IPC分类号： G11B5596
CPC分类号： G11B20/1258 , G11B5/012 , G11B5/4886 , G11B5/5526 , G11B5/5552
摘要： A first actuator for controlling positions of all of a plurality of heads within a wide area and a plurality of second actuators for individually controlling the heads within small areas are provided. When two or more of the heads are in write or read state, one or more of the heads, which are not in write or read state, is preliminarily move to a track position to be accessed next.
摘要翻译：提供用于控制广域内的多个头部的位置的第一致动器和用于单独控制小区域内的头部的多个第二致动器。当两个或更多个磁头处于写入或读取状态时，未处于写入或读取状态的一个或多个磁头预先移动到下一个要访问的磁道位置。

93. 发明授权

US06427184B1 Disk drive with prefetch and writeback algorithm for sequential and nearly sequential input/output streams 失效
标题翻译：具有预取和回写算法的磁盘驱动器，用于顺序和几乎顺序的输入/输出流
公开(公告)号：US06427184B1
公开(公告)日：2002-07-30
申请号：US09088066
申请日：1998-06-01
申请人： Yuji Kaneko , Tomohiro Sakai , Takao Aigo
发明人： Yuji Kaneko , Tomohiro Sakai , Takao Aigo
IPC分类号： G06F1200
CPC分类号： G06F3/0611 , G06F3/0659 , G06F3/0676 , G06F12/0804 , G06F12/0862 , G06F12/0866 , G06F2212/6026
摘要： A magnetic disk processor according to the present invention includes an I/O stream monitor table and an I/O stream monitor which determines whether or not a start address of a certain I/O stream coincides with a sum of a last address of a past I/O stream stored in the I/O stream monitor table and 1 or whether or not the start address is within a range of last address of the past I/O stream plus &agr;. With this construction of the magnetic disk processor, it becomes possible to detect sequential I/O streams issued from a plurality of independent applications and mixed on an I/O channel of a host computer.
摘要翻译：根据本发明的磁盘处理器包括I / O流监视表和I / O流监视器，其确定某个I / O流的起始地址是否与过去的最后地址的和一致存储在I / O流监视器表中的I / O流和1或开始地址是否在过去I / O流的最后地址加上α的范围内。利用这种磁盘处理器的结构，可以检测从多个独立应用发出的并在主计算机的I / O通道上混合的顺序I / O流。

94. 发明授权

US6140600A Electric discharge machining apparatus 有权
标题翻译：放电加工机
公开(公告)号：US6140600A
公开(公告)日：2000-10-31
申请号：US247564
申请日：1999-02-10
申请人： Yuji Kaneko , Yoshihiro Watanabe
发明人： Yuji Kaneko , Yoshihiro Watanabe
IPC分类号： B23H1/02 , B23H7/04 , B23H7/26 , B23H7/02
CPC分类号： B23H1/022
摘要： An electric discharge machining apparatus including a first power source for applying machining voltage to a machining gap to generate an electric discharge, a second power source for applying voltage of equal to or lower than 20 V to the machining gap, a transistor switching bridge connected to both the workpiece and the tool electrode, a switch for selectively connecting one of the first and second power sources to the transistor switching bridge, a transistor controller for controlling on/off switching operation of the transistor switching bridge to alternatively change polarity of voltage being applied to the machining gap, a contact detector for electrically detecting the contact between the workpiece and the tool electrode when output of the second power source is applied across the machining gap, and an NC device which controls the switch so that the first power source is connected to the transistor switching bridge when the application of the machining power is required while the second power source is connected to the transistor switching bridge when detecting the contact by the contact detector is required.
摘要翻译：一种放电加工设备，包括：用于向加工间隙施加加工电压以产生放电的第一电源;对加工间隙施加等于或低于20V的电压的第二电源;连接到工件和工具电极，用于将第一和第二电源中的一个选择性地连接到晶体管开关桥的开关，用于控制晶体管开关桥的导通/截止开关操作的晶体管控制器，以交替地改变施加的电压的极性对于加工间隙，接触检测器，用于在跨越加工间隙施加第二电源的输出时电气地检测工件和工具电极之间的接触;以及NC装置，其控制开关以使得第一电源连接在需要加工功率时需要使用晶体管开关桥当需要接触检测器检测到接触时，他的第二个电源连接到晶体管开关桥。

95. 发明授权

US6091941A Radio apparatus 失效
标题翻译：无线电设备
公开(公告)号：US6091941A
公开(公告)日：2000-07-18
申请号：US192240
申请日：1998-11-16
申请人： Yukihiro Moriyama , Yuji Kaneko , Koji Takata , Masaru Kabashima
发明人： Yukihiro Moriyama , Yuji Kaneko , Koji Takata , Masaru Kabashima
IPC分类号： H01Q3/26 , H01Q11/12 , H03C3/40 , H04B1/04 , H04L27/36
CPC分类号： H04L27/368 , H01Q11/12 , H01Q3/267 , H03C3/406 , H04B2001/0425
摘要： Disclosed is a radio apparatus in which modulating signals (I, Q signals) from an arithmetic/control unit are converted to analog signals, which are then applied to an orthogonal modulator. A modulated wave for transmission, which has been produced by orthogonally modulating a reference carrier wave by the modulating signals, is demodulated by the orthogonal detector. The arithmetic/control unit compares the modulating signals and the demodulated signals and, based upon the comparison, updates distortion compensation coefficients and applies pre-distortion processing to the modulating signal using the distortion compensation coefficients. Leakage carrier produced due to offset of the orthogonal modulator is detected and the arithmetic/control unit adjusts the level of the modulating signals or shifts the phase of the reference carrier wave in such a manner that the leakage carrier (offset) becomes zero.
摘要翻译：公开了一种无线电设备，其中将来自算术/控制单元的调制信号（I，Q信号）转换为模拟信号，然后将其应用于正交调制器。通过正交检波器解调通过调制信号正交调制参考载波产生的用于传输的调制波。算术/控制单元比较调制信号和解调信号，并且基于比较，更新失真补偿系数，并使用失真补偿系数对调制信号应用预失真处理。检测由于正交调制器的偏移而产生的泄漏载波，并且算术/控制单元调节调制信号的电平或以使得泄漏载波（偏移）变为零的方式偏移参考载波的相位。

96. 发明授权

US5298709A Power supply system for electric discharge machines 失效
标题翻译：放电机供电系统
公开(公告)号：US5298709A
公开(公告)日：1994-03-29
申请号：US818536
申请日：1992-01-09
申请人： Yuji Kaneko , Shinji Ito
发明人： Yuji Kaneko , Shinji Ito
IPC分类号： B23H1/02 , B23H7/14
CPC分类号： B23H1/022 , B23H1/024 , B23H2300/20
摘要： A power supply for an electroerosion machine having a switching element which controls the machining current in the gap. The value of the current is compared with a predetermined voltage and the signal generated based on this comparation is provided to a logic gate, advantageously an "AND" gate, whose output signal is applied to the control electrode of the switching element. The power supply surpresses any arcing tendency during gap short circuit conditions and increases the total current through the gap even when gap voltage is low in order to maintain a high machining rate. Electrode consumption is reduced by using a generally step-type current waveform signal. Machining current during the discharge period may be controlled to more closely approximate a square wave so that shifting to a faster machining rate can be easily accomplished by accepting some sacrifice in electrode consuption. Preferably, two or more switching and gating devices are used to permit gap current to flow intermittently during the entire discharge period.
摘要翻译：一种用于电腐蚀机的电源，其具有控制间隙中的加工电流的开关元件。将电流值与预定电压进行比较，并将基于该比较生成的信号提供给逻辑门，有利地是“AND”门，其输出信号被施加到开关元件的控制电极。电源在间隙短路条件下保持任何电弧倾向，即使间隙电压较低，也可增加间隙中的总电流，以保持较高的加工速度。通过使用大致阶梯式电流波形信号来降低电极消耗。放电期间的加工电流可以被控制为更接近于方波，从而通过接受电极消耗中的一些牺牲，可以容易地实现转换到更快的加工速度。优选地，使用两个或更多个开关和门控装置来允许间隙电流在整个放电期间间歇地流动。

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