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23 条记录 (耗时 0.019 秒)

    Method of producing 5-fluorouracil derivatives
    1.
    发明授权
    Method of producing 5-fluorouracil derivatives 失效
    生产5-氟尿嘧啶衍生物的方法

    公开(公告)号：US4249006A

    公开(公告)日：1981-02-03

    申请号：US744929

    申请日：1976-11-24

    申请人： Isao Minami ,  Yoshio Yoshioka ,  Hiroaki Nomura

    发明人： Isao Minami ,  Yoshio Yoshioka ,  Hiroaki Nomura

    IPC分类号： C07D405/14 ,  C07D405/04

    CPC分类号： C07D405/14

    摘要： A new and industrially useful method of producing 1(or 1,3-bis)-(tetrahydro-2-furyl)-5-fluorouracil or a mixture thereof by reacting 5-fluorouracil with 2,3-dihydrofuran at elevated temperature in a closed vessel. Depending upon reaction conditions, each of the above 5-fluorouracil derivatives or a mixture of them is produced.1,3-Bis-(tetrahydro-2-furyl)-5-fluorouracil thus formed can be converted to 1-(tetrahydro-2-furyl)-5-fluorouracil by solvolysis under non-acidic conditions.

    摘要翻译： 一种新的和工业上有用的方法，通过在高温下将5-氟尿嘧啶与2,3-二氢呋喃在封闭的环境中反应生产1（或1,3-双） - （四氢-2-呋喃基）-5-氟尿嘧啶或其混合物 船只。 根据反应条件，制备上述5-氟尿嘧啶衍生物或它们的混合物。 如此形成的1,3-双 - （四氢-2-呋喃基）-5-氟尿嘧啶可以在非酸性条件下通过溶剂分解转化成1-（四氢-2-呋喃基）-5-氟尿嘧啶。

    Phospholipid carbamates
    6.
    发明授权
    Phospholipid carbamates 失效
    磷脂氨基甲酸酯

    公开(公告)号：US4408052A

    公开(公告)日：1983-10-04

    申请号：US237970

    申请日：1981-02-25

    申请人： Motoo Hozumi ,  Hiroaki Nomura ,  Yoshio Yoshioka

    发明人： Motoo Hozumi ,  Hiroaki Nomura ,  Yoshio Yoshioka

    IPC分类号： A01N57/10 ,  C07F9/09 ,  C07F9/10 ,  C07F9/58 ,  C07F9/6539 ,  C07F9/65

    CPC分类号： C07F9/6539 ,  A01N57/10 ,  C07F9/091 ,  C07F9/10 ,  C07F9/581

    摘要： New carbamic acid esters, inclusive of salts thereof, which have the formula: ##STR1## wherein n is zero or 1; R.sup.1 and R.sup.2 independently represent --H, --OCH.sub.3 or --OCONHR.sup.6 ; in which R.sup.6 is C.sub.8-26 aliphatic hydrocarbon residue provided that at least one of R.sup.1 and R.sup.2 is --OCONHR.sup.6 ; and R.sup.3, R.sup.4 and R.sup.5 independently represent hydrogen or lower alkyl, or ##STR2## represents cyclic ammonio, exhibit inhibitory activity to multiplication of tumor cells and antimicrobial activity.

    摘要翻译： 新的氨基甲酸酯，包括其盐，其具有下式：其中n为0或1; R1和R2独立地表示-H，-OCH3或-OCONHR6; 其中R6是C8-26脂族烃残基，条件是R1和R2中的至少一个是-OCONHR6; R3，R4和R5独立地表示氢或低级烷基，或者表示环状氨基，对肿瘤细胞的增殖和抗微生物活性表现出抑制活性。

    Gas-insulated circuit breaker
    7.
    发明授权
    Gas-insulated circuit breaker 失效
    气体绝缘断路器

    公开(公告)号：US4667072A

    公开(公告)日：1987-05-19

    申请号：US640580

    申请日：1984-08-14

    申请人： Fumihiro Endo ,  Shigeo Kobayashi ,  Yoshio Yoshioka

    发明人： Fumihiro Endo ,  Shigeo Kobayashi ,  Yoshio Yoshioka

    IPC分类号： H01H33/70 ,  H01H33/915 ,  H01H33/88

    CPC分类号： H01H33/703

    摘要： A protrusion is formed downstream of the throat of an insulating nozzle of a gas-insulated circuit breaker of puffer type. Quenching gas, after collision with the protrusion, is blown against an arc generated between a fixed arcing contact and a moving arcing contact in the opening process of the gas-insulated circuit breaker. As a result, a pressure drop at or near the forward end (Q) of the fixed arcing contact can be prevented thereby to improve the insulation strength in the opening process.

    摘要翻译： 在气体绝缘断路器的绝缘喷嘴的喉部的下游形成有一个突起，该气体绝缘断路器是通气型的。 在气体绝缘断路器的打开过程中，与突起碰撞后的淬火气体被压在固定的电弧触点和移动的电弧触点之间产生的电弧上。 结果，可以防止固定电弧接触件的前端（Q）处或附近的压降，从而提高打开过程中的绝缘强度。

    Puffer type gas circuit breaker
    8.
    发明授权
    Puffer type gas circuit breaker 失效
    河豚式气体断路器

    公开(公告)号：US4132876A

    公开(公告)日：1979-01-02

    申请号：US721487

    申请日：1976-09-08

    申请人： Minoru Sato ,  Isao Takahashi ,  Takanao Kurasawa ,  Yoshio Yoshioka ,  Yukio Nakagawa

    发明人： Minoru Sato ,  Isao Takahashi ,  Takanao Kurasawa ,  Yoshio Yoshioka ,  Yukio Nakagawa

    IPC分类号： H01H33/91 ,  H01H33/24 ,  H01H33/915 ,  H01H33/88

    CPC分类号： H01H33/245

    摘要： A puffer type gas circuit breaker comprises a first and a second arcing electrodes movable relative to each other, an insulating nozzle surrounding the second arcing electrode, a puffer device for introducing an arc-suppressing gas into the insulating nozzle to puff out the arc produced between the two arcing electrodes when the breaker is in motion for circuit breaking, and a movable shield device for relieving the concentration of an electric field at the front end of the first arcing electrode during the breaker motion for circuit breaking. When the breaker is closed and the circuit made, the movable shield device surrounds the first arcing electrode and insulating nozzle, with a predetermined gap between itself and the insulating nozzle opposite thereto, and is kept at the same potential as the first arcing electrode. The circuit breaker further includes a device for maintaining the predetermined gap and the same potential at least in the early stage of the breaker motion for current breaking.

    摘要翻译： 吹气式气体断路器包括可相对于彼此可移动的第一和第二电弧电极，围绕第二电弧电极的绝缘喷嘴，用于将绝热喷嘴引入灭弧气体的吹气装置，用于吹出在 当断路器运动以断开电路时的两个电弧电极，以及用于在断路器运动期间用于减轻第一电弧电极前端处的电场浓度的可移动屏蔽装置。 当断路器闭合并且电路制成时，可动屏蔽装置围绕第一电弧电极和绝缘喷嘴，其自身与与其相对的绝缘喷嘴之间具有预定的间隙，并且保持与第一电弧电弧相同的电位。 断路器还包括用于至少在断路器运动的早期阶段保持预定间隙和相同电位的装置，用于电流断开。

    Puffer-type gas-blast circuit breaker
    9.
    发明授权
    Puffer-type gas-blast circuit breaker 失效
    吹气式气体断路器

    公开(公告)号：US4160888A

    公开(公告)日：1979-07-10

    申请号：US802940

    申请日：1977-06-02

    申请人： Ken-ichi Natsui ,  Kunio Hirasawa ,  Yoshio Yoshioka ,  Hiroshi Chida

    发明人： Ken-ichi Natsui ,  Kunio Hirasawa ,  Yoshio Yoshioka ,  Hiroshi Chida

    IPC分类号： H01H33/91 ,  H01H33/915 ,  H01H33/70 ,  H01H33/88

    CPC分类号： H01H33/91

    摘要： A puffer type gas-blast circuit breaker includes at least one interrupting unit mounted in a vessel filled with an arc-extinguishing gas of a unitary pressure. The interrupting unit comprises: a fixed contact; a movable contact movable toward and away from the fixed contact to be engaged with and to be disengaged from the fixed contact respectively, the movable contact having an axial hollow portion, wherein an arc is established between the contacts upon disengagement of the movable contact from the fixed contact; an insulating nozzle encompassing a free end portion of the movable contact and having a throat portion therein, which is substantially closed with the fixed contact; a compression chamber filled with an arc extinguishing gas; a suction chamber, wherein an arc extinguishing gas within the compression chamber is compressed and the volume of the suction chamber is enlarged upon movement of the movable contact away from the fixed contact, whereby a pressure difference between the compression chamber and the suction chamber causes the arc extinguishing gas to be directed from the compression chamber through the axial hollow portion into the suction chamber thereby to be blown against an arc produced between the fixed contact and the movable contact; and the suction chamber is brought into an open condition to or communication with a space in the vessel, simultaneously when the fixed contact is drawn out of the throat portion in the insulating nozzle.

    摘要翻译： 吹气式气体爆炸断路器包括至少一个中断单元，其安装在填充有单一压力的灭弧气体的容器中。 所述中断单元包括：固定触点; 可移动接触件可以朝向和远离固定触头移动以分别与固定触头接合并从固定触头脱离，所述可动触头具有轴向中空部分，其中当触动件与可动触头脱离时在触点之间建立电弧 固定接触 绝缘喷嘴，其包围可动触头的自由端部，并且在其中具有与固定触头基本上封闭的喉部; 填充有灭弧气体的压缩室; 吸入室，其中压缩室内的灭弧气体被压缩，并且当可动触头远离固定触头移动时吸入室的体积增大，由此压缩室和吸入室之间的压力差导致 灭弧气体从压缩室通过轴向中空部分引入吸入室，从而被吹送到在固定触头和可动触点之间产生的电弧; 并且当固定接触件从绝缘喷嘴中的喉部部分拉出时，吸入室进入开口状态或与容器中的空间连通。

    High-voltage DC circuit breaker apparatus
    10.
    发明授权
    High-voltage DC circuit breaker apparatus 失效
    高压直流断路器

    公开(公告)号：US4578730A

    公开(公告)日：1986-03-25

    申请号：US541245

    申请日：1983-10-12

    申请人： Shunji Tokuyama ,  Kooji Suzuki ,  Kunio Hirasawa ,  Yoshio Yoshioka ,  Keiji Arimatsu

    发明人： Shunji Tokuyama ,  Kooji Suzuki ,  Kunio Hirasawa ,  Yoshio Yoshioka ,  Keiji Arimatsu

    IPC分类号： H01H33/59 ,  H02H3/00

    CPC分类号： H01H33/596 ,  Y10T307/832

    摘要： There is disclosed a high-voltage DC circuit breaker apparatus with reverse current insertion system by line voltage charge, which comprises a commutation switch, a series circuit of a capacitor, a reactor and a switch connected in parallel with the commutation switch, a resistor connected so as to charge the capacitor by a line voltage. The charging time constant of the capacitor determined by the capacity of the capacitor and the resistor is used as a reference in a manner so that the rise time constant of the line voltage is smaller than the charging time constant of the capacitor, and the rise time constant of the line current is larger than the charging time constant of the capacitor, thereby interrupting the fault current without fail.

    摘要翻译： 公开了一种具有通过线路电压充电的反向电流插入系统的高压DC断路器装置，其包括换向开关，电容器的串联电路，电抗器和与换向开关并联的开关，电阻器连接 以便通过线路电压对电容器充电。 以电容器和电阻器的容量确定的电容器的充电时间常数用作参考，使得线路电压的上升时间常数小于电容器的充电时间常数，上升时间 线电流的常数大于电容器的充电时间常数，从而中断故障电流。