知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

48 条记录 (耗时 0.041 秒)

    Process for producing α-trifluoromethyl-α,β-unsaturated ester
    2.
    发明授权
    Process for producing α-trifluoromethyl-α,β-unsaturated ester 有权
    α-三氟甲基-α，β-不饱和酯的制备方法

    公开(公告)号：US08653295B2

    公开(公告)日：2014-02-18

    申请号：US13060565

    申请日：2009-09-24

    申请人： Akihiro Ishii ,  Manabu Yasumoto ,  Takako Yamazaki ,  Kaori Mogi ,  Kazunori Mori ,  Takashi Masuda

    发明人： Akihiro Ishii ,  Manabu Yasumoto ,  Takako Yamazaki ,  Kaori Mogi ,  Kazunori Mori ,  Takashi Masuda

    IPC分类号： C07C69/76

    CPC分类号： C07C67/317 ,  C07C67/327 ,  C07C69/65

    摘要： An α-trifluoromethyl-α,β-unsaturated ester can be produced by reacting an α-trifluoromethyl-α-hydroxy ester with sulfuryl fluoride (SO2F2) in the presence of an organic base. It is preferable that the raw substrate has a hydrogen atom as one β-position substituent group and either an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aromatic ring group or a substituted aromatic ring group as the other β-position substituent group. It is more preferable that an ester moiety of the raw substrate is an alkyl ester. This raw substrate is readily available. Further, the desired reaction can proceed favorably with the use of this raw substrate. It is also preferable to use either 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) or 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as the organic base. The desired reaction can proceed more favorably with the use of this organic base.

    摘要翻译： α-三氟甲基-α，β-不饱和酯可以通过在有机碱存在下使α-三氟甲基-α-羟基酯与硫酰氟（SO 2 F 2）反应来制备。 原料优选为具有作为一个β位取代基的氢原子，烷基，取代烷基，链烯基，取代烯基，芳香环基或取代芳环基作为 其他β位取代基。 原料的酯部更优选为烷基酯。 该原料基材容易获得。 此外，期望的反应可以有利地利用该原始基底进行。 还优选使用1,5-二氮杂双环[4.3.0]壬-5-烯（DBN）或1,8-二氮杂双环[5.4.0]十一碳-7-烯（DBU）作为有机碱。 使用该有机碱可以更有利地进行所需的反应。

    Storage apparatus and storage medium
    5.
    发明授权
    Storage apparatus and storage medium 有权
    存储设备和存储介质

    公开(公告)号：US07050250B2

    公开(公告)日：2006-05-23

    申请号：US10787064

    申请日：2004-02-25

    申请人： Tatsuhiko Kosugi ,  Isamu Tomita ,  Kazunori Mori ,  Yoshiyuki Kagami ,  Ryuki Kubohara

    发明人： Tatsuhiko Kosugi ,  Isamu Tomita ,  Kazunori Mori ,  Yoshiyuki Kagami ,  Ryuki Kubohara

    IPC分类号： G11B5/09

    CPC分类号： G11B27/3027 ,  G11B2220/20

    摘要： There are provided a storage apparatus and a computer-readable recording medium, on whose storage areas, servo frames are arranged at uniform intervals in a spoke-like pattern. Each of the servo frames has an index bit storing section storing, as an index bit, part of an index pattern, which is operable to identify a storage area. The apparatus and the recording medium have a storage area recognizing unit for recognizing the storage areas based on the index bits, which are obtained by an index bit obtaining unit. The index bits, stored one in each of the index bit storing sections of the servo frames, are adapted to form, when being sequentially arranged, an index bit string in which such an index pattern repeatedly appears.

    摘要翻译： 提供了一种存储装置和计算机可读记录介质，其存储区域以伺服帧以均匀的间隔以轮辐状图案布置。 每个伺服帧具有索引位存储部分，其存储可用于识别存储区域的索引图案的一部分作为索引位。 设备和记录介质具有存储区域识别单元，用于基于由索引位获取单元获得的索引位来识别存储区域。 存储在伺服帧的每个索引位存储部分中的索引位适于在顺序排列时形成重复出现这种索引图案的索引位串。

    Magnetic disk apparatus with improved positioning control of magnetic head
    7.
    发明授权
    Magnetic disk apparatus with improved positioning control of magnetic head 失效
    具有改善磁头定位控制的磁盘装置

    公开(公告)号：US5541785A

    公开(公告)日：1996-07-30

    申请号：US122481

    申请日：1993-09-27

    申请人： Tatsuro Sasamoto ,  Kazunori Mori

    发明人： Tatsuro Sasamoto ,  Kazunori Mori

    IPC分类号： G11B21/10 ,  G11B5/596

    CPC分类号： G11B5/59688 ,  G11B5/59622

    摘要： A disk storage device includes at least one disk, a head for scanning a principal surface of the disk in a generally radial direction thereof for reproducing a servo control signal in response to a servo pattern that is recorded on the principal surface, a rotary mechanism for moving the head along the principal surface of the disk generally in the radial direction, an amplifier supplied with the servo signal reproduced at the head for amplifying the same with a predetermined gain, a signal processing circuit for extracting first and second positional control signals each having a phase that is offset with respect to the phase of the other positional control signal by 90 degrees, from the servo control signal, a level detection circuit for detecting a head position at which the first and second positional control signals have simultaneously an identical level and further for detecting the level of the first and second positional control signals at the detected head position, a gain control circuit for controlling the gain of the amplifier such that an absolute value of the foregoing level is set to a predetermined value, and a head position control circuit for controlling a driving circuit in response to a combination of the first and second positional control signals, the head position control circuit locating the head on a predetermined recording track based upon a head position in which the first and second positional control signals have the same level simultaneously.

    摘要翻译： 磁盘存储装置包括至少一个磁盘，用于沿其大致径向的方向扫描磁盘的主表面的磁头，用于响应于记录在主表面上的伺服模式再现伺服控制信号;旋转机构， 大致沿径向沿着盘的主表面移动头部，放大器，其提供有在头部再现的伺服信号，用于以预定的增益对其进行放大;信号处理电路，用于提取第一和第二位置控制信号，每个具有 相对于另一位置控制信号的相位相对于伺服控制信号偏移90度的相位，用于检测第一和第二位置控制信号同时具有相同电平的磁头位置的电平检测电路，以及 进一步用于检测在检测到的头位置处的第一和第二位置控制信号的电平，增益con 控制电路，用于控制放大器的增益，使得上述电平的绝对值被设置为预定值;以及磁头位置控制电路，用于响应于第一和第二位置控制信号的组合来控制驱动电路， 头部位置控制电路基于头部位置将头部定位在预定的记录轨道上，其中第一和第二位置控制信号同时具有相同的水平。

    Vehicle having secondarily steered front and rear wheels
    8.
    发明授权
    Vehicle having secondarily steered front and rear wheels 失效
    车辆二次转向前轮和后轮

    公开(公告)号：US4970646A

    公开(公告)日：1990-11-13

    申请号：US269698

    申请日：1988-11-10

    申请人： Fukashi Sugasawa ,  Kazunori Mori ,  Kenji Kawagoe ,  Hiroshi Mouri ,  Junsuke Kuroki

    发明人： Fukashi Sugasawa ,  Kazunori Mori ,  Kenji Kawagoe ,  Hiroshi Mouri ,  Junsuke Kuroki

    IPC分类号： B62D7/14

    CPC分类号： B62D7/14

    摘要： A method of steering a vehicle having a set of steerable front wheels and a set of steerable rear wheels. The front and rear wheels are both secondarily steered in addition to a main steer of the front wheels caused by an operation of a front wheel steering gear in response to an operation of a steering wheel. The method comprises providing to the front wheels a secondary steer angle corresponding to at least a differentiated value of a steer angle of a steering wheel in such a way as to increase an overall steer angle of the front wheels and providing to the rear wheels a secondary steer angle proportional to the steer angle of the steering wheel and in the same direction as the steer angle of the front wheels.