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    • 2. 发明申请
    • MAGNETIC HEAD
    • 磁头
    • US20050162777A1
    • 2005-07-28
    • US11087796
    • 2005-03-23
    • Osamu OnoderaHeikichi SatoKatsumi SakataKaoru Aoki
    • Osamu OnoderaHeikichi SatoKatsumi SakataKaoru Aoki
    • G11B5/187G11B5/31G11B5/53
    • G11B5/1878G11B5/3106G11B5/53
    • A magnetic head having a sliding surface (120) on which a magnetic recording medium is slid, a magnetic gap g formed in the sliding surface for exchanging information signals with the magnetic recording medium, a track width controlling portion for prescribing a track width Tw of the magnetic gap g, with the track width controlling portion being formed by abutting a pair of magnetic core halves (110a, 110b) together, there being track width controlling grooves (111a to 111d) formed in each of the magnetic core halves, metal magnetic films (112a to 112f) provided in association with the magnetic gap g and with the track width controlling portion, and a groove (130) formed in at least one end of the magnetic gap g for extending substantially parallel to the sliding direction of the magnetic recording medium. A length L in μm between a first point of intersection P between the track width controlling groove (111b) formed in one of the magnetic core halves (110a) and one lateral edge of the groove (130) and a second point of intersection Q between the magnetic gap g and the other lateral edge of the groove is related with an intensity of the recording current I [mA] by L≧11.3×lnI−21.9. With the magnetic head, demagnetization produced in the recording track of the magnetic tape is prevented from being produced.
    • 一种具有滑动表面(120)的磁头,磁记录介质滑动在该磁头上,形成在滑动表面中用于与磁记录介质交换信息信号的磁隙g,轨道宽度控制部分,用于规定轨道宽度Tw 磁隙g,其中轨道宽度控制部分通过将一对磁芯半部(110a,110b)邻接在一起形成,在每个磁芯中形成有轨道宽度控制槽(111a至111d) 与磁隙g和轨道宽度控制部分相关联地设置的半个金属磁性膜(112a至112f)以及形成在磁隙g的至少一端中的基本平行于 磁记录介质的滑动方向。 形成在磁芯半部(110a)中的一个磁道半部(110a)中的磁道宽度控制槽(111b)和沟槽(130)的一个侧边缘之间的第一交点P之间的第一交点P之间的长度L和第二交点 磁隙g与槽的另一个侧边之间的Q与记录电流I [mA]的强度相关,L> = 11.3×lnI-21.9。 利用磁头,防止在磁带的记录轨道中产生的退磁。
    • 3. 发明授权
    • Magnetic head
    • 磁头
    • US06894868B2
    • 2005-05-17
    • US10381288
    • 2002-07-23
    • Osamu OnoderaHeikichi SatoKatsumi SakataKaoru Aoki
    • Osamu OnoderaHeikichi SatoKatsumi SakataKaoru Aoki
    • G11B5/187G11B5/31G11B5/53G11B5/23
    • G11B5/1878G11B5/3106G11B5/53
    • A magnetic head having a sliding surface (120) on which a magnetic recording medium is slid, a magnetic gap g formed in the sliding surface for exchanging information signals with the magnetic recording medium, a track width controlling portion for prescribing a track width Tw of the magnetic gap g, with the track width controlling portion being formed by abutting a pair of magnetic core halves (110a, 110b) together, there being track width controlling grooves (111a to 111d) formed in each of the magnetic core halves, metal magnetic films (112a to 112f) provided in association with the magnetic gap g and with the track width controlling portion, and a groove (130) formed in at least one end of the magnetic gap g for extending substantially parallel to the sliding direction of the magnetic recording medium. A length L in μm between a first point of intersection P between the track width controlling groove (111b) formed in one of the magnetic core halves (110a) and one lateral edge of the groove (130) and a second point of intersection Q between the magnetic gap g and the other lateral edge of the groove is related with an intensity of the recording current I [mA] by L≧11.3×1nI−21.9. With the magnetic head, demagnetization produced in the recording track of the magnetic tape is prevented from being produced.
    • 一种具有滑动表面(120)的磁头,磁记录介质滑动在该磁头上,形成在滑动表面中用于与磁记录介质交换信息信号的磁隙g,轨道宽度控制部分,用于规定轨道宽度Tw 磁隙g,其中轨道宽度控制部分通过将一对磁芯半部(110a,110b)邻接在一起形成,在每个磁芯中形成有轨道宽度控制槽(111a至111d) 与磁隙g和轨道宽度控制部分相关联地设置的半个金属磁性膜(112a至112f)以及形成在磁隙g的至少一端中的基本平行于 磁记录介质的滑动方向。 形成在磁芯半部(110a)中的一个磁道半部(110a)中的磁道宽度控制槽(111b)和沟槽(130)的一个侧边缘之间的第一交点P之间的第一交点P之间的长度L和第二交点 磁隙g与槽的另一个侧边缘之间的Q与记录电流I [mA]的强度相关,L> = 11.3x1nI-21.9。 利用磁头,防止在磁带的记录轨道中产生的退磁。
    • 6. 发明授权
    • Bottom drain valve construction
    • 底部排水阀结构
    • US3949963A
    • 1976-04-13
    • US521760
    • 1974-11-07
    • Kaoru Aoki
    • Kaoru Aoki
    • F16K31/363F16K27/02F16K31/122F16K31/38F16K43/00F16K51/00
    • F16K43/00F16K27/02F16K31/122F16K51/00Y10T137/8242
    • A bottom drain valve comprises a housing with an upper tubular portion with a top drain opening and an annular valve seat around the drain opening. The drain discharge connects laterally downwardly from the lower part of the upper tubular portion. A valve rod guide and sealing portion of the housing extends below and is aligned with the upper portion and has a valve rod guide bore therethrough. A lower cylindrical portion of the housing has a bottom wall with a piston passage bore and has a first drain chamber below the valve rod guide and sealing portion and a second piston chamber below the drain chamber. A piston guide chamber is defined between the first drain chamber and the second piston chamber. An actuating piston is movable in the second piston chamber and has a central hollow tubular portion which is guided in the piston guide chamber adjacent its upper end and guided through the piston bore adjacent its lower end and out of the lower cylindrical portion. The hollow tubular portion permits draining of the leakage liquid therethrough. A valve member including a rod portion extends through at least part of the hollow tubular portion of the piston and through the valve rod guide bore and the valve rod guide sealing portion. Removable pin means connects the lower end of the valve rod to the piston. The valve member has a valve head on the rod portion engageable on the valve seat to close the opening and it is movable with said rod portion upwardly off the valve seat to open the opening.
    • 9. 发明授权
    • ATM cell switching system
    • ATM信元交换系统
    • US06463057B1
    • 2002-10-08
    • US09714947
    • 2000-11-20
    • Takahiko KozakiJunichirou YanagiKiyoshi AikiYutaka ItoKaoru AokiShinobu Gohara
    • Takahiko KozakiJunichirou YanagiKiyoshi AikiYutaka ItoKaoru AokiShinobu Gohara
    • H04L1256
    • H04L12/5601H04J3/247H04L12/5602H04L45/04H04L49/108H04L49/203H04L49/255H04L49/256H04L49/3081H04L2012/5627H04L2012/5631H04L2012/5638H04L2012/5649H04L2012/565H04L2012/5651H04L2012/5652H04L2012/5672H04L2012/5679H04L2012/568H04L2012/5681H04L2012/5682H04Q11/0478
    • An ATM switching system comprises a switch unit including a plurality of input ports and a plurality of output ports having the same cell transmission rate, and a multiplexer for multiplexing cell trains outputted from at least two output ports into a single cell train and outputting the cell train to a high-speed output line (and/or a demultiplexer for demultiplexing a cell train from an output port into a plurality of cell trains and outputting the cell trains to a plurality of low-speed output lines). The switch unit includes a buffer memory for temporarily storing cells inputted from the input ports while forming a queue chain for each output line to which each cell is to be outputted, a demultiplexer for distributing the cells read from the buffer memory among the output ports in circulation, and a buffer memory control circuit for controlling the write and read operation of cells with the shared buffer memory. The buffer memory control circuit has a control table device for outputting an identifier of an output line to which the cells read from the shared buffer memory are to be outputted, and cells are read from the chain designated by the output line identifier outputted from the control table device.
    • ATM交换系统包括具有多个输入端口和具有相同信元传输速率的多个输出端口的开关单元,以及多路复用器,用于将从至少两个输出端口输出的单元列复用为单个单元列,并输出该单元 训练到高速输出线(和/或解复用器,用于从输出端口多路复用到多个单元列,并将单元列输出到多个低速输出线)。 开关单元包括缓冲存储器,用于临时存储从输入端口输入的单元,同时形成用于每个单元将被输出到的每个输出线的队列链;解复用器,用于将从缓冲存储器读取的单元在输出端口之中分配 以及缓冲存储器控制电路,用于通过共享缓冲存储器来控制单元的写入和读取操作。 缓冲存储器控制电路具有用于输出要从共享缓冲存储器读取的单元被输出的输出行的标识符的控制表装置,并且从由控制器输出的输出行标识符指定的链中读取单元 表装置。