中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.033 seconds)

    Orificeless printhead for an ink jet printer
    2.
    发明授权
    Orificeless printhead for an ink jet printer 失效
    用于喷墨打印机的无油墨打印头

    公开(公告)号：US5371527A

    公开(公告)日：1994-12-06

    申请号：US691132

    申请日：1991-04-25

    Applicant: Robert J. Miller ,  William R. Knight

    Inventor： Robert J. Miller ,  William R. Knight

    IPC: B41J2/045 ,  B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J2/01

    CPC classification number: B41J2/14008 ,  B41J2002/14322

    Abstract: An orificeless thin film printhead for an ink jet pen which comprises a substrate having a plurality of vortex activators thereon, and ink dispensing means located adjacent to the substrate for providing a thin layer of ink of a controlled thickness over the surfaces of the vortex activators. A protective cover is disposed on the surface of the substrate and has one or more slots or other openings therein operative to expose the vortex activators during ink jet printhead operation. When each vortex activator is energized, the energy transferred from the surface of the activator into the liquid film creates a microjet and a shear force therein, followed by the formation of a vortex ring in the ink film. The vortex ring is in turn self-propelled at a relatively low velocity through the ink film to the free liquid surface thereby, producing stress at this surface to allow the high velocity ink at the core of the vortex ring to be efficiently transferred to an adjacent print medium with a high degree of directionality, thereby enhancing resolution and print quality on the printed media. In accordance with the present invention, vortex activators include, but without limitation, heater resistors, piston drivers, and piezoelectric cavities.

    Abstract translation: 一种用于喷墨笔的无孔薄膜打印头，其包括在其上具有多个涡流激活器的基底，以及位于基底附近的墨水分配装置，用于在涡旋激活器的表面上提供受控厚度的薄层墨水。 保护盖设置在基板的表面上，并且在喷墨打印头操作期间具有一个或多个狭槽或其它开口，用于暴露涡流激活器。 当每个涡流启动器通电时，从活化剂表面转移到液膜中的能量在其中产生微喷射和剪切力，随后在油墨膜中形成涡环。 漩涡环又以相对较低的速度通过油墨膜自行推进到自由液体表面，从而在该表面产生应力，以使涡环核心处的高速油墨能够有效转移到相邻的 打印介质具有高度的方向性，从而提高打印介质上的分辨率和打印质量。 根据本发明，涡流激活器包括但不限于加热电阻器，活塞驱动器和压电腔。

    Focusing lens for electron emitter with shield layer
    4.
    发明授权
    Focusing lens for electron emitter with shield layer 有权
    用于具有屏蔽层的电子发射器的聚焦透镜

    公开(公告)号：US06741016B2

    公开(公告)日：2004-05-25

    申请号：US09882933

    申请日：2001-06-14

    Applicant: Paul J. Benning ,  William R Knight ,  Michael J. Regan

    Inventor： Paul J. Benning ,  William R Knight ,  Michael J. Regan

    IPC: H01J146

    CPC classification number: B82Y10/00 ,  G11B9/10 ,  G11B9/14 ,  G11B9/1418 ,  G11C11/23 ,  H01J3/022

    Abstract: An electron lens is used for focusing electrons from a cathode to an anode. The lens includes a first conductive layer with a first opening at a first distance from the cathode. The first conductive layer is held at a first voltage. The lens also includes a second conductive layer with a second opening at a second distance from the first conductive layer and a third distance from the anode. The second conductive layer is held at a second voltage substantially equal to the voltage of the anode. The first and second openings are chosen based on the first voltage, the second voltage, the first distance, the second distance and the third distance. The opening focuses the electrons emitted from the cathode onto the anode to a spot size preferably less than 40 nanometers. The force created between the cathode and anode is minimized by the structure of the lens.

    Abstract translation: 电子透镜用于将电子从阴极聚焦到阳极。 透镜包括第一导电层，其具有距离阴极第一距离的第一开口。 第一导电层保持在第一电压。 透镜还包括第二导电层，其具有距离第一导电层第二距离的第二开口和离阳极的第三距离。 第二导电层被保持在基本上等于阳极电压的第二电压上。 基于第一电压，第二电压，第一距离，第二距离和第三距离来选择第一和第二开口。 开口将从阴极发射的电子聚焦到阳极上至优选小于40纳米的光斑尺寸。 通过透镜的结构，在阴极和阳极之间产生的力最小化。

    Electronic device with wide lens for small emission spot size
    8.
    发明授权
    Electronic device with wide lens for small emission spot size 失效
    具有宽透镜的电子装置，发射点尺寸小

    公开(公告)号：US07057353B2

    公开(公告)日：2006-06-06

    申请号：US10341687

    申请日：2003-01-13

    Applicant: Paul Benning ,  Huei-Pei Kuo ,  William R Knight ,  Paul H McClelland

    Inventor： Paul Benning ,  Huei-Pei Kuo ,  William R Knight ,  Paul H McClelland

    IPC: G09G3/10

    CPC classification number: G11C7/005 ,  H01J3/021 ,  H01J2237/31754

    Abstract: An electronic device of the invention includes a tip emitter formed in a well that is defined in a substrate. An extractor disposed about the well extracts emissions from the tip emitter. A wide lens focuses the emissions through its opening. The opening is sufficiently large and spaced far enough away to encompass the majority of a divergence angle of the emissions. The emissions are focused into a spot.

    Abstract translation: 本发明的电子器件包括形成在阱中的尖端发射体，其限定在衬底中。 围绕井提供的提取器提取来自尖端发射器的发射。 宽透镜通过开放来集中排放。 开口足够大并且间隔足够远，以包含排放物的大部分发散角。 排放量集中在一个地方。

    Inkjet ink having improved directionality by controlling surface tension and wetting properties
    9.
    发明授权
    Inkjet ink having improved directionality by controlling surface tension and wetting properties 失效
    喷墨油墨通过控制表面张力和润湿性能而具有改进的方向性

    公开(公告)号：US06478418B2

    公开(公告)日：2002-11-12

    申请号：US09798704

    申请日：2001-03-02

    Applicant: Paul F. Reboa ,  John R Moffatt ,  William R Knight

    Inventor： Paul F. Reboa ,  John R Moffatt ,  William R Knight

    IPC: B41J201

    CPC classification number: C09D11/38

    Abstract: An inkjet ink for printing onto a print medium is provided. The inkjet ink evidences minimal tail breakup and improved drop trajectory, thereby evidencing improved print quality. The minimal tail breakup and improved drop trajectory are achieved by adding at least one surface active additive to the ink to provide the ink with a surface tension of at least 35 dyne/cm and a contact angle (with an orifice plate comprising KAPTON, an aromatic polyimide) of about 35 to 65 degrees.

    Abstract translation: 提供用于打印到打印介质上的喷墨油墨。 喷墨油墨证明了最小的分解和改善的液滴轨迹，从而证明了改进的打印质量。 通过向油墨中加入至少一种表面活性添加剂来实现最小的分解和改进的液滴轨迹，以提供具有至少35达因/厘米的表面张力和接触角（具有包含KAPTON的孔板，芳族化合物 聚酰亚胺）约35至65度。

Patent Agency Ranking