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    • 56. 发明授权
    • Recording media library apparatus with a function to detect a position of a recording medium transferred in the library
    • 具有检测在图书馆中传送的记录介质的位置的功能的记录媒体库装置
    • US06515945B2
    • 2003-02-04
    • US09266209
    • 1999-03-10
    • Hiroyuki SuzukiTakayuki KomiyaKatsumasa YokoyamaHitoshi Kimura
    • Hiroyuki SuzukiTakayuki KomiyaKatsumasa YokoyamaHitoshi Kimura
    • G11B2018
    • G11B17/225
    • Locking claw engages a recording medium to be transferred, and a determination is made as to which of a plurality of predetermined points a current position of the locking member corresponds to. Current position of the recording medium can be determined indirectly on the basis of the thus-determined predetermined point corresponding to the current position of the locking member. If any recording medium is not properly settled in a predetermined rest position at power-ON, then the recording medium is automatically transferred to be settled in the predetermined rest position. Simplified detection of the position of the locking claw is made in absolute or quasi-absolute form, by a picker position detector unit that is provided in association with a rotating drive shaft of the locking member and employs a simply-constructed mechanism capable of generating detection pulses responsive to predetermined rotational angles of two shafts rotating at different rates. Each of the plurality of predetermined points defined for the locking claw can be identified in absolute or quasi-absolute form on the basis of a combination of patterns of the thus-generated pulses. Thus, in feed transfer of a recording medium, such as a DVD medium, the position of the medium can be detected in a simplified manner and can be automatically controlled to be properly settled in the predetermined position upon power-ON.
    • 锁定爪与要传送的记录介质接合,并且确定锁定构件的当前位置对应于多个预定点中的哪一个。 可以基于与锁定构件的当前位置对应的如此确定的预定点间接地确定记录介质的当前位置。 如果任何记录介质在通电时未在预定的静止位置适当地定位,则记录介质被自动转印以在预定的静止位置中定影。 通过与锁定构件的旋转驱动轴相关联地设置的拾取器位置检测器单元,以绝对或准绝对形式简化检测锁定爪的位置,并采用能够产生检测的简单构造的机构 响应于以不同速率旋转的两个轴的预定旋转角度的脉冲。 基于由此产生的脉冲的图案的组合,能够以绝对或准绝对形式来识别为锁定爪定义的多个预定点中的每一个。 因此,在诸如DVD介质的记录介质的馈送传送中,可以以简化的方式检测介质的位置,并且可以在通电时自动控制以适当地定位在预定位置。
    • 57. 发明授权
    • Sputtering target and its manufacturing method
    • 溅射靶及其制造方法
    • US06409965B1
    • 2002-06-25
    • US09666241
    • 2000-09-21
    • Takahiro NagataManabu SasakiHitoshi KimuraNorio Yokoyama
    • Takahiro NagataManabu SasakiHitoshi KimuraNorio Yokoyama
    • C22C3200
    • C23C14/3414
    • An ingot is made from a used target of 30 weight % or more, and new metals of the same components, and recycled alloy powder is made by a gas atomizing process. Magnetic permeability is controlled not to exceed 2 by adjusting the content of rare earth metals in rare earth alloy powder to be at least 35 weight %. By blending the recycled alloy powder with other powder to produce alloy powder containing at least 50 weight % of rare earth alloy powder having a magnetic permeability not higher than 2 and containing at least 65 weight % of rare earth alloy powder. By sintering the alloy powder under pressure and thereafter cutting top, bottom and side surfaces of the sintered material, a target having a magnetic permeability not higher than 2 and having a thickness not less than 8 mm is fabricated.
    • 铸锭由30重量%以上的使用靶材制成,相同成分的新金属,再生合金粉末由气体雾化法制成。 通过将稀土类合金粉末中的稀土金属的含量调整至少35重量%,将磁导率控制在2以下。 通过将再循环合金粉末与其它粉末混合,制造含有至少50重量%的磁导率不高于2的稀土合金粉末并含有至少65重量%的稀土合金粉末的合金粉末。 通过在压力下烧结合金粉末,然后切割烧结材料的顶部,底部和侧面,制造具有不高于2的磁导率并且厚度不小于8mm的靶。
    • 58. 发明授权
    • Method for producing magnetic head
    • 磁头制造方法
    • US5799389A
    • 1998-09-01
    • US898777
    • 1997-07-23
    • Hitoshi Kimura
    • Hitoshi Kimura
    • G11B5/127G11B5/187G11B5/235
    • G11B5/1871G11B5/1878G11B5/1272Y10T29/49048Y10T29/49057
    • A head chip of a magnetic head is produced by a method in which magnetic core half blocks, each having plural track width delimiting grooves on its major surface and having a magnetic metal film of a soft magnetic metal material formed on the major surface, are abutted to each other with a gap material in-between to form a magnetic head block which is then sliced to give plural head chips for the magnetic head. Each track width delimiting groove is polygonally-shaped in cross-section and has at least two bends. This enables suppression of cracks of exfoliation of the magnetic metal film otherwise caused in the magnetic core during its fabrication to improve product yield and operational reliability.
    • 磁头的头部芯片通过以下方法制造,其中磁芯半块在其主表面上具有多个轨道宽度限定槽并且具有形成在主表面上的软磁金属材料的磁性金属膜被抵接 彼此之间具有中间的间隙材料,以形成磁头块,然后将其切片以产生用于磁头的多个头部芯片。 每个轨道宽度限定槽的横截面为多边形,并且具有至少两个弯曲部。 这使得能够抑制在其制造过程中在磁芯中产生的磁性金属膜的剥离裂纹,从而提高产品的产量和操作的可靠性。