Processes for the preparation of 4-substituted benzopyran derivatives
    31.
    发明授权
    Processes for the preparation of 4-substituted benzopyran derivatives 失效
    制备4-取代苯并吡喃衍生物的方法

    公开(公告)号:US06455708B1

    公开(公告)日:2002-09-24

    申请号:US09787673

    申请日:2001-03-21

    IPC分类号: C07D31168

    CPC分类号: C07D311/58

    摘要: Starting, for example, from 1-fluoro-2-fluoromethyl-3-butyn-2-yl 4-trifluoromethylphenyl; ether, N-(2-cyanoethyl)-5-fluoro-4-fluoromethyl-4-(4-trifluoromethylphenoxy)-2-pentynamide is produced and then cyclized to synthesize 2,2-bis(fluoromethyl)-N-(2-cyanoethyl)-6-trifluoromethyl-2H-1-benzopyran-4-carboxamide. The invention processes for producing 4-substituted benzopyran derivatives involve fewer steps, feature greater safety and allow for easier purification than the prior art processes.

    摘要翻译: 从例如1-氟-2-氟甲基-3-丁炔-2-基4-三氟甲基苯基开始, 乙醚,制得N-(2-氰乙基)-5-氟-4-氟甲基-4-(4-三氟甲基苯氧基)-2-戊酰胺,然后环化合成2,2-双(氟甲基)-N-(2- 氰基乙基)-6-三氟甲基-2H-1-苯并吡喃-4-甲酰胺。 生产4-取代苯并吡喃衍生物的方法涉及较少的步骤,具有更大的安全性并且允许比现有技术方法更容易的纯化。

    Rotary machining apparatus
    32.
    发明授权
    Rotary machining apparatus 有权
    旋转加工机

    公开(公告)号:US06336842B1

    公开(公告)日:2002-01-08

    申请号:US09574285

    申请日:2000-05-19

    IPC分类号: B24B4900

    CPC分类号: B24B53/017 B24B49/16

    摘要: An object of the present invention is to provide a polishing apparatus which is capable of configuring a surface of a polishing tool without damaging the polishing tool. In order to solve the above-mentioned problem, the present invention provide a rotary machining apparatus comprising a polishing tool for polishing a sample; a rotary disk for holding the polishing tool; a tool for configuring a surface of the polishing tool; and a position adjusting mechanism for adjusting a gap between the tool and the polishing tool, which comprises a rotating mechanism for rotating the tool; and a sensor for sensing a change in the rotation of the rotating mechanism, a height at starting to configure the polishing tool using the tool being determined based on the change in the rotation obtained by the sensor.

    摘要翻译: 本发明的目的是提供一种能够构造抛光工具的表面而不损坏抛光工具的抛光装置。为了解决上述问题,本发明提供了一种旋转加工装置,其包括抛光 用于抛光样品的工具; 用于保持抛光工具的旋转盘; 用于配置抛光工具的表面的工具; 以及位置调节机构,用于调整所述工具和所述研磨工具之间的间隙,所述间隙包括用于旋转所述工具的旋转机构; 以及用于感测旋转机构的旋转变化的传感器,基于由传感器获得的旋转变化确定的,使用该工具来开始构造抛光工具的高度。

    Semiconductor integrated circuit
    33.
    发明授权
    Semiconductor integrated circuit 失效
    半导体集成电路

    公开(公告)号:US6081480A

    公开(公告)日:2000-06-27

    申请号:US483839

    申请日:1995-06-15

    申请人: Yukio Suzuki

    发明人: Yukio Suzuki

    CPC分类号: G11C7/22 G11C16/22

    摘要: Writing of unwanted data is inhibited if signals other than a required number of clocks are applied for a program for a memory.A program control circuit 1 delivers a write-starting instruction. A clock number-detecting circuit 2 for detecting a given number of clocks necessary for a program for a memory produces an output signal to the program control circuit 1.

    摘要翻译: 如果对于存储器的程序应用了所需数量的时钟以外的信号,则禁止写入不需要的数据。 程序控制电路1传送写入开始指令。 用于检测用于存储器的程序所需的给定数量的时钟的时钟数检测电路2向程序控制电路1产生输出信号。

    Liquid crystal image projector
    35.
    发明授权
    Liquid crystal image projector 失效
    液晶影像投影仪

    公开(公告)号:US5666171A

    公开(公告)日:1997-09-09

    申请号:US508617

    申请日:1995-07-28

    摘要: An image projector comprises a liquid crystal display module and a light source both contained in a housing. The housing is formed with an inlet and an outlet, and is provided with a fan. An air flow channel is provided between the inlet and the outlet within the housing. There is provided a wind separator in the air flow channel, which separator separates cooling air such that cooling air flows separately towards the liquid crystal display module and the light source, for better cooling effect.

    摘要翻译: 图像投影仪包括液晶显示模块和包含在壳体中的光源。 壳体形成有入口和出口,并且设置有风扇。 空气流通道设置在壳体内的入口和出口之间。 在空气流动通道中设置风分离器,该分离器分离冷却空气,使得冷却空气分别流向液晶显示模块和光源,以获得更好的冷却效果。

    Semiconductor integrated circuit
    36.
    发明授权
    Semiconductor integrated circuit 失效
    半导体集成电路

    公开(公告)号:US5610428A

    公开(公告)日:1997-03-11

    申请号:US476221

    申请日:1995-06-07

    CPC分类号: H01L29/7883 H01L27/105

    摘要: A semiconductor integrated circuit comprises a semiconductor substrate of a first conductivity type, at least one electrically erasable floating gate type semiconductor non-volatile memory transistor disposed on a surface of the semiconductor substrate, a well region of a second conductivity type formed in the surface of the semiconductor substrate, and a program voltage switching transistor of the first conductivity type disposed in the well region. A field insulation film is disposed on the surface of the semiconductor substrate. A field dope region of the first conductivity type is provided beneath the field insulation film. The field dope region preferably has an impurity concentration higher than an impurity concentration of the semiconductor substrate. By this construction, current leakage is prevented at the time when a high voltage occurs such as, for example, when performing a writing operation with respect to EEPROM.

    摘要翻译: 半导体集成电路包括第一导电类型的半导体衬底,设置在半导体衬底的表面上的至少一个电可擦除浮栅型半导体非易失性存储晶体管,形成在第二导电类型的表面上的第二导电类型的阱区 所述半导体衬底以及设置在所述阱区中的所述第一导电类型的编程电压开关晶体管。 在半导体衬底的表面上设置场绝缘膜。 第一导电类型的场掺杂区域设置在场绝缘膜的下方。 场掺杂区优选具有高于半导体衬底的杂质浓度的杂质浓度。 通过这种结构,在诸如例如当对EEPROM执行写入操作时出现高电压时,防止了电流泄漏。

    Parts feeder
    37.
    发明授权
    Parts feeder 失效
    零件进料器

    公开(公告)号:US5492593A

    公开(公告)日:1996-02-20

    申请号:US259978

    申请日:1994-06-17

    摘要: A parts feeder for feeding parts that are disposed on a carrier having a base tape and an adhesive tape. Parts are disposed above holes which are formed at equal intervals on the base tape, and the parts are held by an adhesive tape adhered to a lower surface of the base tape. The feeder includes a pitched feeding mechanism for intermittently feeding the carrier tape at a predetermined pitch, a separating mechanism for separating the adhesive tape from the base tape in synchronization with the feeding of the carrier tape at an adhesive tape separating stage, and a pressing mechanism for pressing the parts disposed on the base tape against the base tape prior to the separation of the adhesive tape from the base tape at the adhesive tape separating stage.

    摘要翻译: 用于供给部件的部件供给部,其配置在具有基带和胶带的载体上。 零件设置在基带上以等间隔形成的孔之上,并且部件被粘附在基带的下表面上的粘合带保持。 进料器包括用于以预定间距间歇地供给载带的倾斜进给机构,用于在胶带分离台上与载带的进给同步地将胶带与基带分离的分离机构,以及按压机构 在粘合带分离阶段将粘合带与基带分离之前,将设置在基带上的部件压靠在基带上。

    Organic solvent spray dryer device
    39.
    发明授权
    Organic solvent spray dryer device 失效
    有机溶剂喷雾干燥器

    公开(公告)号:US5092959A

    公开(公告)日:1992-03-03

    申请号:US561937

    申请日:1990-08-02

    IPC分类号: B01D1/18

    摘要: A spray dryer device for spray drying a sample dissolved in an organic solvent is disclosed, comprising a circulation line in which an inert gas is circulated by a blower, a heater for heating the inert gas to a specified temperature, a main drying chamber provided with a spray nozzle through which the sample dissolved in the organic solvent is sprayed into the inert gas, a collector in which the powdered sample produced in the main drying chamber is collected, and a condenser in which the gaseous organic solvent is condensed and recovered. The powdered sample is obtained in this spray dryer device for spray drying organic solvents by spraying the organic solvent through the spray nozzle into the main drying chamber in which the oxygen concentration is held to a low value by the introduction of the inert gas.

    摘要翻译: 公开了一种用于喷雾干燥溶解在有机溶剂中的样品的喷雾干燥装置,其包括循环管线,惰性气体通过鼓风机循环,用于将惰性气体加热到特定温度的加热器, 将溶解在有机溶剂中的样品喷射到惰性气体中的喷嘴,收集在主干燥室中产生的粉末样品的收集器和冷凝回收气态有机溶剂的冷凝器。 在该喷雾干燥装置中,通过将有机溶剂通过喷嘴喷雾到主干燥室中,通过引入惰性气体将氧浓度保持在低的值,在该喷雾干燥装置中获得粉末样品。