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    • 1. 发明授权
    • Thermal ink jet printhead and process for the preparation thereof
    • 热喷墨打印头及其制备方法
    • US06260956B1
    • 2001-07-17
    • US09120746
    • 1998-07-23
    • Ram S. NarangGary A. KneezelBidan ZhangAlmon P. FisherTimothy J. Fuller
    • Ram S. NarangGary A. KneezelBidan ZhangAlmon P. FisherTimothy J. Fuller
    • B41J204
    • B41J2/1635B41J2/1604B41J2/1623B41J2/1628B41J2/1629B41J2/1631B41J2/1632B41J2/1642B41J2/1645B41J2002/14362
    • Disclosed is an ink jet printhead which comprises (i) an upper substrate with a set of parallel grooves for subsequent use as ink channels and a recess for subsequent use as a manifold, the grooves being open at one end for serving as droplet emitting nozzles, and (ii) a lower substrate in which one surface thereof has an array of heating elements and addressing electrodes formed thereon, said lower substrate having an insulative layer deposited on the surface thereof and over the heating elements and addressing electrodes and patterned to form recesses therethrough to expose the heating elements and terminal ends of the addressing electrodes, the upper and lower substrates being aligned, mated, and bonded together to form the printhead with the grooves in the upper substrate being aligned with the heating elements in the lower substrate to form droplet emitting nozzles, said upper substrate comprising a material formed by crosslinking or chain extending a polymer of formula I or II.
    • 公开了一种喷墨打印头,其包括(i)具有一组平行凹槽以用于随后用作油墨通道的上基板和用于随后用作歧管的凹槽,所述凹槽在一端开口以用作液滴发射喷嘴, 和(ii)下基板,其中一个表面具有形成在其上的加热元件和寻址电极的阵列,所述下基板具有沉积在其表面上的绝热层,并且在加热元件和寻址电极之上并且被图案化以形成通过其中的凹槽 为了露出寻址电极的加热元件和末端,上基板和下基板对准,配合和结合在一起以形成打印头,上基板中的凹槽与下基板中的加热元件对准以形成液滴 所述上基板包括通过交联或链延长式I或II的聚合物形成的材料。
    • 8. 发明授权
    • Method of operating an ultrasonic transmitter and receiver
    • 操作超声波发射器和接收器的方法
    • US08667846B2
    • 2014-03-11
    • US13089524
    • 2011-04-19
    • James D. HuffmanGary A. Kneezel
    • James D. HuffmanGary A. Kneezel
    • G01N29/04
    • G01N29/2437B06B1/0622G01N29/04G10K9/122G10K13/00
    • Operating an ultrasonic transmitter and receiver includes providing a MEMS composite transducer. The MEMS composite transducer includes a substrate. Portions of the substrate define an outer boundary of a cavity. A first MEMS transducing member includes a first size. A first portion of the first MEMS transducing member is anchored to the substrate. A second portion of the first MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. A second MEMS transducing member includes a second size smaller than the first size of the first MEMS transducing member. A first portion of the second MEMS transducing member is anchored to the substrate. A second portion of the second MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. A compliant membrane is positioned in contact with the first and second MEMS transducing members. A first portion of the compliant membrane covers the first and second MEMS transducing members. A second portion of the compliant membrane is anchored to the substrate. Electrical pulses are sent to the first MEMS transducing member which causes the first MEMS transducing member and the compliant membrane to vibrate. The vibrations of the first MEMS transducing member and the compliant membrane are transmitted to an object. Echo signals are received from the object. The received echo signals are converted into electrical signals by the second MEMS transducing member.
    • 操作超声波发射器和接收器包括提供MEMS复合传感器。 MEMS复合传感器包括基板。 基板的一部分限定了空腔的外边界。 第一MEMS转换构件包括第一尺寸。 第一MEMS转换构件的第一部分被锚固到基底。 第一MEMS转换构件的第二部分在空腔的至少一部分上延伸并且相对于空腔自由移动。 第二MEMS转换构件包括小于第一MEMS转换构件的第一尺寸的第二尺寸。 第二MEMS转换构件的第一部分被锚固到基底。 第二MEMS转换构件的第二部分在空腔的至少一部分上延伸并且相对于空腔自由移动。 柔性膜定位成与第一和第二MEMS转导构件接触。 柔性膜的第一部分覆盖第一和第二MEMS转导构件。 顺应性膜的第二部分锚定到基底。 电脉冲被发送到第一MEMS转换构件,这导致第一MEMS换能构件和柔性膜振动。 第一MEMS转换构件和柔性膜的振动被传送到物体。 从对象接收回波信号。 所接收的回波信号由第二MEMS转换构件转换成电信号。