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    • 5. 发明授权
    • Optical disk device
    • 光盘装置
    • US08238222B2
    • 2012-08-07
    • US12955316
    • 2010-11-29
    • Takeshi Imai
    • Takeshi Imai
    • G11B7/00G11B5/58G11B11/00
    • G11B7/08511G11B7/0945G11B2007/0013
    • Proposed is an optical disk device capable of appropriately performing focus control. In an optical disk device, an objective lens is moved in the thickness direction of an optical disk by controlling an actuator and a time interval in which each of the recording layers was detected is measured while moving the objective lens, a first time interval from the first detection of the recording layer to the second detection of the recording layer is compared with a second time interval from the second detection of the recording layer to the third detection of the recording layer, and a focal position of the objective lens is determined based on the comparative result.
    • 提出能够适当地进行聚焦控制的光盘装置。 在光盘装置中,通过控制致动器,物镜在光盘的厚度方向上移动,并且在移动物镜的同时测量其中检测每个记录层的时间间隔,从第 将记录层的第二检测到记录层的第二次检测与从记录层的第二检测到记录层的第三次检测的第二时间间隔进行比较,并且基于 比较结果。
    • 7. 发明授权
    • Fe-based amorphous alloy strip
    • 铁基非晶态合金带
    • US07744703B2
    • 2010-06-29
    • US11887705
    • 2006-04-05
    • Takeshi ImaiShigekatsu OzakiYuuji HiramotoYuichi SatoHiroaki Sakamoto
    • Takeshi ImaiShigekatsu OzakiYuuji HiramotoYuichi SatoHiroaki Sakamoto
    • C22C45/02
    • H01F1/15308C22C45/02
    • The present invention provides a Fe—B—Si system amorphous alloy thin strip excellent in high magnetic flux density, thermal stability, amorphous formability improved workability and low core loss. The present invention further provides a Fe—B—Si system amorphous alloy thin strip which has the reduced cost without using high purity iron resources such as an electrolytic iron as iron resources used in an amorphous alloy thin strip, and also has core loss less than 0.10 W/kg at W13/50 in soft magnetic property in alternating-current field. The Fe—B—Si system amorphous alloy thin strip according to the present invention contains an appropriate amounts of N, C, P to improve thermal stability, amorphous formability, workability (brittleness), and core loss without deteriolating magnetic flux density, and contains, in atomic %, B: 5-25%, Si: 1-30%, N: 0.001-0.2%, C: 0.003-10%, P: 0.001-0.2% and the balance being Fe and unavoidable impurities, and optionally contains Co or Ni substituted to less than 15% of the Fe amount, or Cr at less than 5% substituted to the Fe amount. Further, Mn: 0.15-0.5 mass %, S: 0.004-0.05 mass % can be included.
    • 本发明提供了高磁通密度,热稳定性,非晶态成形性提高加工性和低铁损的Fe-B-Si系非晶态合金薄带。 本发明还提供了一种Fe-B-Si系非晶合金薄带,其在不使用高纯度铁资源的情况下降低了成本,例如在非晶合金薄带中使用的电解铁作为铁资源,并且还具有小于 W13 / 50,交流电场软磁特性为0.10 W / kg。 根据本发明的Fe-B-Si系非晶态合金薄带含有适量的N,C,P以提高热稳定性,非晶形成性,可加工性(脆性)和铁芯损耗,而不影响磁通密度,并含有 ,原子%,B:5-25%,Si:1-30%,N:0.001-0.2%,C:0.003-10%,P:0.001-0.2%,余量为Fe和不可避免的杂质, 含有少于Fe量的15%以下的Co或Ni,或者小于5%的Fe代替Fe量。 另外,Mn:0.15〜0.5质量%,S:0.004〜0.05质量%。
    • 8. 发明申请
    • Amorphous ribbon take-up roll switching method and switching system
    • 无定型带卷取卷式切换方式及切换系统
    • US20090324315A1
    • 2009-12-31
    • US12311562
    • 2007-05-10
    • Shigekatsu OzakiTakeshi Imai
    • Shigekatsu OzakiTakeshi Imai
    • B41J33/00
    • B21C47/04B21C47/245B21C47/326B65H19/2215B65H19/26B65H19/28B65H2301/414222B65H2301/5114B65H2301/5144B65H2701/173
    • The present invention provides an amorphous ribbon take-up roll switching and method which use a take-up device provided with a plurality of take-up rolls magnetized on their surfaces so as to take up an amorphous alloy ribbon during which it is possible to simply and inexpensively switch take-up rolls stably without ribbon breaking, uneven take-up, or other trouble regardless of the amount of take-up, that is, a method of taking up amorphous ribbon having a magnetic property cast using a cooling roll by using two or more take-up rolls, which amorphous ribbon switching method characterized by, when switching the take-up rolls, bringing the amorphous ribbon into contact with the next take-up roll and cutting the amorphous ribbon being taken up in the state with the next take-up roll brought into proximity with the cooling roll or separating the next take-up roll and the cooling roll and cutting the amorphous ribbon between the take-up roll and the next take-up roll.
    • 本发明提供了一种无定形带卷取辊切换方法,该方法使用一种卷绕装置,该卷取装置具有在其表面上磁化的多个卷绕辊,以便卷取非晶态合金带,在此期间可以简单地 并且无论卷取量如何,均可以稳定地切换卷取辊而不会发生带状断裂,不均匀的卷取或其他故障,即,使用冷却辊使用冷却辊铸造具有磁性的非晶质带的方法 两个或更多个卷取辊,该非晶带切换方法的特征在于,当切换卷取辊时,使非晶带与下一个卷取辊接触并切割非晶带卷绕在该状态下 接下来的卷取辊与冷却辊接近,或者分离下一个卷取辊和冷却辊,并且在收卷辊和下一卷取辊之间切割无定形带。