Process for synthesis of organometallic compounds
    41.
    发明授权
    Process for synthesis of organometallic compounds 失效
    合成有机金属化合物的方法

    公开(公告)号:US07098355B2

    公开(公告)日:2006-08-29

    申请号:US10489604

    申请日:2002-09-27

    IPC分类号: C07F15/00 B01J31/00 C08F4/80

    CPC分类号: C07F15/0046

    摘要: A method for synthesizing an organometallic compound, which is usefully utilized as a catalyst for manufacturing polyolefins by ring-opening metathesis polymerization of an olefin having strain in a molecule such as dicyclopentadiene or synthesizing epothilones by ring-dosing metathesis reaction, by an efficient and low cost synthesis method using a starting material which is easily available due to relatively simple chemical structure, and further without any possibility of coexistence of a vinylhetero compound or a vinyl compound exchanged which tends to accompany as an impurity in the system in conventional methods, characterized by reacting a starting material comprising a zero-valent transition metal complex (A) or a polyvalent transition metal complex (A′), a compound (B) or (B′) shown by the following general formula (1) or (4), respectively, and a neutral ligand (C) or (C′), in one step under non-reducing condition or reducing condition. R1Y1CR2X12  (1) R4Y2CR5X22  (4)

    摘要翻译: 一种合成有机金属化合物的方法,其有效地用作通过在诸如二环戊二烯的分子中具有应变的烯烃的开环易位聚合或通过环 - 给料复分解反应合成埃坡霉素来制备聚烯烃的催化剂,通过有效和低的 使用由于相对简单的化学结构容易获得的起始材料的成本合成方法,并且进一步不存在在常规方法中作为杂质伴随作为杂质的乙烯基杂化物或乙烯基化合物交换的任何可能性,其特征在于 使包含零价过渡金属络合物(A)或多价过渡金属络合物(A')的起始材料,由以下通式(1)或(4)表示的化合物(B)或(B')反应, 和中性配体(C)或(C'),在非还原条件或还原条件下一步。 <?in-line-formula description =“In-line Formulas”end =“lead”?> R&lt; 1&lt; 1&lt; 1&lt; CR 2& (1)<?in-line-formula description =“In-Line Formulas”end =“tail”?> <?in-line-formula description = “在线公式”end =“lead”?> R 2 2(4)<?in-line-formula description =“In-line Formulas”end =“tail”?>

    Optical probe element, and a recording and reproduction device using the
optical probe element
    45.
    发明授权
    Optical probe element, and a recording and reproduction device using the optical probe element 失效
    光学探针元件,以及使用光学探针元件的记录和再现装置

    公开(公告)号:US5982409A

    公开(公告)日:1999-11-09

    申请号:US789020

    申请日:1997-01-27

    摘要: An optical probe element for focusing light from a light source into micro light of a diameter not larger than the diffraction limit, includes a light transmitting flat substrate and an optical probe formed on one of the surfaces of the flat substrate. The optical probe has a substantially conical light transmitting projection, and a reflective film which covers the conical surface of the projection so that the tip of the projection is exposed. The optical probe element enables the optical probe to be formed on the flat substrate using a semiconductor processing technique, thereby achieving efficient mass production of a standardized optical probe element. Thus, a recording and reproduction apparatus using the optical probe element is efficiently mass-produced.

    摘要翻译: 用于将来自光源的光聚焦到直径不大于衍射极限的微光的光学探针元件包括形成在平坦基板的一个表面上的透光平坦基板和光学探针。 光学探头具有基本上圆锥形的透光突起和覆盖突起的锥形表面的反射膜,使得突起的尖端被暴露。 光探头元件使得能够使用半导体处理技术在平面基板上形成光学探针,从而实现标准化的光学探测元件的高效批量生产。 因此,有效地大量生产使用光学探针元件的记录和再现装置。

    Magneto-optical memory device whereon overwriting operation can be
carried out through light intensity modulation and method for recording
and erasing using it
    50.
    发明授权
    Magneto-optical memory device whereon overwriting operation can be carried out through light intensity modulation and method for recording and erasing using it 失效
    可以通过光强度调制和使用它进行记录和擦除的方法进行重写操作的磁光存储器件

    公开(公告)号:US5425008A

    公开(公告)日:1995-06-13

    申请号:US965358

    申请日:1992-10-23

    摘要: A magneto-optical memory device is provided with a recording track having a recording film and a guide track wherein a perpendicular magnetic film, whose magnetization direction is arranged in one direction, is formed, the recording track and the guide track being alternatively disposed. A recording operation is carried out using a circular magnetic field generated from the perpendicular magnetic film by projecting a light beam only on the recording track so as to raise the temperature of the recording film. When erasing, the light beam is projected on the recording track and respective portions of the guide tracks located on both sides of the recording track so as to raise the temperature thereof. As the temperature rises, the magnetization of the perpendicular magnetic film becomes smaller, and an erasing operation is therefore performed using an external magnetic field.

    摘要翻译: 磁光存储装置具有记录磁道,该记录磁道具有记录膜和导轨,其中形成磁化方向沿一个方向布置的垂直磁膜,记录磁道和导轨交替设置。 使用由垂直磁性膜产生的圆形磁场,通过仅将光束投射在记录轨道上以提高记录膜的温度来执行记录操作。 当擦除时,光束被投射在记录轨道上,并且位于记录轨道两侧​​的引导轨道的各个部分以升高其温度。 随着温度升高,垂直磁性膜的磁化变小,因此使用外部磁场进行擦除操作。