中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

93 records (took 0.017 seconds)

    Secondary vibration damping type crystal oscillator circuit
    51.
    发明授权
    Secondary vibration damping type crystal oscillator circuit 有权
    二次振动阻尼型晶体振荡电路

    公开(公告)号：US08044730B2

    公开(公告)日：2011-10-25

    申请号：US12462364

    申请日：2009-08-03

    Applicant: Junichi Arai

    Inventor： Junichi Arai

    IPC: H03B5/32

    CPC classification number: H03B5/362 ,  H03B1/04 ,  H03B2200/0008 ,  H03B2202/05

    Abstract: A secondary vibration damping type crystal oscillator circuit is formed as a Colpitts type, in which a crystal unit is connected between base and collector terminals, a first capacitor is connected between emitter and collector terminals, and a second capacitor is connected between emitter and base terminals of a oscillating transistor. A region between the emitter and collector terminals or between the emitter and base terminals includes a reactance parallel circuit, in which an LC series circuit is connected in parallel to the first or second capacitor. The reactance parallel circuit has resonant characteristics that the reactance parallel circuit is made capacitive at an oscillating frequency in principal vibration mode of the crystal unit as an oscillating frequency, and a resonant frequency of the LC series circuit corresponds to the vibrational frequency in secondary vibration mode that is close to the principal vibration mode.

    Abstract translation: 二次振动阻尼型晶体振荡电路形成为Colpitts型，其中晶体单元连接在基极和集电极端子之间，第一电容器连接在发射极和集电极端子之间，第二电容器连接在发射极和基极端子之间 的振荡晶体管。 发射极和集电极端子之间或发射极和基极端子之间的区域包括电抗并联电路，其中LC串联电路并联连接到第一或第二电容器。 电抗并联电路具有谐振特性，使得电抗并联电路在振荡频率下以振荡频率在晶体单元的主振动模式下为振荡频率，并且LC串联电路的谐振频率对应于二次振动模式中的振动频率 接近主振动模式。

    Crystal oscillator
    52.
    发明授权
    Crystal oscillator 有权
    水晶振荡器

    公开(公告)号：US08040197B2

    公开(公告)日：2011-10-18

    申请号：US12606369

    申请日：2009-10-27

    Applicant: Junichi Arai

    Inventor： Junichi Arai

    IPC: H03B1/00

    CPC classification number: H03B5/04 ,  H03B5/364

    Abstract: A crystal oscillator includes a crystal unit and a voltage-variable capacitive element that is connected to the crystal unit in series, the crystal oscillator varying an oscillation frequency by applying a control voltage between terminals of the voltage-variable capacitive element and by varying a series equivalence capacitance at a side of the oscillator circuit when observed between terminals of the crystal unit. The crystal oscillator further includes a first resistor and a second resistor for dividing the control voltage. At least one of the first resistor and the second resistor is a temperature sensing resistor, the resistance of which changes depending on a temperature, so as to correct frequency temperature characteristics of the oscillation frequency.

    Abstract translation: 晶体振荡器包括晶体单元和串联连接到晶体单元的电压可变电容元件，晶体振荡器通过在电压可变电容元件的端子之间施加控制电压并改变串联来改变振荡频率 当在晶体单元的端子之间观察时，在振荡器电路的一侧的等效电容。 晶体振荡器还包括用于分压控制电压的第一电阻器和第二电阻器。 第一电阻器和第二电阻器中的至少一个是温度感测电阻器，其电阻根据温度而变化，以便校正振荡频率的频率温度特性。

    INTEGRAL MOLDING METHOD OF GASKET OF FUEL CELL-USE COMPONENT MEMBER AND MOLDING DEVICE THEREOF
    60.
    发明申请
    INTEGRAL MOLDING METHOD OF GASKET OF FUEL CELL-USE COMPONENT MEMBER AND MOLDING DEVICE THEREOF 审中-公开
    燃料电池组件用组件及其成型装置的集成成型方法

    公开(公告)号：US20090261502A1

    公开(公告)日：2009-10-22

    申请号：US11991915

    申请日：2006-09-08

    Applicant: Junichi Arai

    Inventor： Junichi Arai

    IPC: B29C45/14

    CPC classification number: H01M8/0286 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/0276 ,  H01M8/0284 ,  H01M8/1004 ,  H01M8/241 ,  H01M8/2483 ,  H01M2008/1095

    Abstract: An integral molding method of gasket of a fuel cell component member in which a gasket body is integrally molded with an outer peripheral portion of a membrane electrode assembly and a peripheral portion of an opening formed on the membrane electrode assembly by cross-linking molding using a mold having a heating means, the membrane electrode assembly comprising a proton exchange membrane, a gas diffusion layer integrally laminated on both sides of the proton exchange membrane via a catalyst carrier layer constituting an electrode. The mold has a cavity corresponding to a molding portion of the gasket body and a heat insulation zone corresponding to a power generating functional portion of the fuel cell component member, a not-cross-linked gasket material is filled in the cavity and the gasket material is molded by heat cross-linking molding using the heating means, whereby a heat generated by molding is prevented from being transmitted to the power generating functional portion by the heat insulation zone. The heat insulation zone is constructed with a recessed portion formed on the mold corresponding to the power generating functional portion, and an inner wall of the recessed portion is attached with a heat insulation material.

    Abstract translation: 一种燃料电池部件的垫圈的一体成形方法，其中，利用交联成形法将垫片主体与膜电极组件的外周部分一体地模制，并且形成在膜电极组件上的开口的周边部分 具有加热装置的模具，所述膜电极组件包括质子交换膜，通过构成电极的催化剂载体层整体层压在所述质子交换膜两侧的气体扩散层。 模具具有对应于垫圈主体的模制部分的空腔和对应于燃料电池组件构件的发电功能部分的绝热区域，未交联的垫圈材料填充在空腔中，垫圈材料 通过使用加热装置的热交联模制而成型，从而防止由模制产生的热量通过隔热区传递到发电功能部分。 绝热区域由对应于发电功能部分的模具上形成有凹部，并且凹部的内壁附着有绝热材料。

Patent Agency Ranking