利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

201 条记录 (耗时 0.033 秒)

    DRIVER CIRCUIT FOR A PRINTHEAD
    4.
    发明申请
    DRIVER CIRCUIT FOR A PRINTHEAD 有权

    公开(公告)号：US20220288922A1

    公开(公告)日：2022-09-15

    申请号：US17196680

    申请日：2021-03-09

    申请人： Hiroshi Nishimura

    发明人： Hiroshi Nishimura

    IPC分类号： B41J2/045 ,  B41J2/14 ,  B41J2/21

    摘要： Printheads and methods of operation. In one embodiment, a printhead includes a plurality of jetting channels comprising first jetting channels configured to jet a first print fluid and second jetting channels configured to jet a second print fluid, and a driver circuit communicatively coupled to actuators of the jetting channels. The driver circuit receives a drive waveform comprising non-jetting pulses and jetting pulses, and gating signals comprising a first active gating signal designated for jetting the first print fluid, and a second active gating signal designated for jetting the second print fluid. The driver circuit selectively applies the non-jetting pulses and the jetting pulses to actuators of the first jetting channels based on the first active gating signal to jet the first print fluid, and selectively applies the jetting pulses to actuators of the second jetting channels based on the second active gating signal to jet the second print fluid.

    MANIFOLD LENGTH IN A PRINTHEAD
    5.
    发明申请
    MANIFOLD LENGTH IN A PRINTHEAD 有权

    公开(公告)号：US20220281222A1

    公开(公告)日：2022-09-08

    申请号：US17194869

    申请日：2021-03-08

    申请人： Hiroshi Nishimura ,  Giang Vo ,  Cesar Hurtado

    发明人： Hiroshi Nishimura ,  Giang Vo ,  Cesar Hurtado

    IPC分类号： B41J2/14

    摘要： Printheads and manifolds within printheads. In one embodiment, a method comprises determining a resonant frequency of jetting channels for a printhead, and selecting a target length for a manifold fluidly coupled to the jetting channels such that resonant frequencies of the manifold differ from the resonant frequency of the jetting channels by a threshold amount.

    Input/output (I/O) design of a printhead allowing for daisy-chaining
    6.
    发明授权
    Input/output (I/O) design of a printhead allowing for daisy-chaining 有权

    公开(公告)号：US11376857B2

    公开(公告)日：2022-07-05

    申请号：US17204046

    申请日：2021-03-17

    申请人： Hiroshi Nishimura

    发明人： Hiroshi Nishimura

    IPC分类号： B41J2/175 ,  B41J2/18 ,  B41J2/155 ,  B41J29/02

    摘要： Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of jetting channels having nozzles on a bottom surface configured to jet a print fluid, and longitudinal sides disposed between the bottom surface and a top surface. The printhead also comprises Input/Output (I/O) ports disposed on one or more of the longitudinal sides, and configured to convey the print fluid into or out of the printhead. The printhead further includes one or more chain manifolds disposed between the I/O ports.

    Independent reservoirs for supplying a print fluid to a flow-through printhead
    7.
    发明授权
    Independent reservoirs for supplying a print fluid to a flow-through printhead 有权

    公开(公告)号：US11001070B2

    公开(公告)日：2021-05-11

    申请号：US15913795

    申请日：2018-03-06

    申请人： Hiroshi Nishimura

    发明人： Hiroshi Nishimura

    IPC分类号： B41J2/14 ,  B41J2/175 ,  B41J2/155 ,  B41J2/18

    摘要： Apparatus and method for providing a print fluid to a flow-through printhead. The printhead has a row of jetting channels configured to jet droplets of a print fluid, a supply manifold fluidly coupled to the row of jetting channels, and a return manifold fluidly coupled to the row of jetting channels. A first reservoir is fluidly coupled to the supply manifold, and a second reservoir is fluidly coupled to the return manifold. The first reservoir and the second reservoir are fluidly isolated except through the printhead.

    Input/output (I/O) design of a printhead allowing for daisy-chaining
    8.
    发明授权
    Input/output (I/O) design of a printhead allowing for daisy-chaining 有权

    公开(公告)号：US10981388B2

    公开(公告)日：2021-04-20

    申请号：US16351147

    申请日：2019-03-12

    申请人： Hiroshi Nishimura

    发明人： Hiroshi Nishimura

    IPC分类号： B41J2/175 ,  B41J2/18 ,  B41J2/155 ,  B41J29/02

    摘要： Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of jetting channels having nozzles on a bottom surface configured to jet a print fluid, and longitudinal sides disposed between the bottom surface and a top surface. The printhead also comprises Input/Output (I/O) ports disposed on one or more of the longitudinal sides, and configured to convey the print fluid into or out of the printhead. The printhead further includes one or more chain manifolds disposed between the I/O ports.

    Inkjet head that circulates ink
    10.
    发明授权
    Inkjet head that circulates ink 有权

    公开(公告)号：US09604457B2

    公开(公告)日：2017-03-28

    申请号：US15007102

    申请日：2016-01-26

    申请人： Hiroshi Nishimura ,  Giang Vo ,  Connor Matsumori

    发明人： Hiroshi Nishimura ,  Giang Vo ,  Connor Matsumori

    IPC分类号： B41J2/14 ,  B41J2/18

    CPC分类号： B41J2/14274 ,  B41J2/14201 ,  B41J2/14233 ,  B41J2/1433 ,  B41J2/18 ,  B41J2002/14419 ,  B41J2202/12

    摘要： An inkjet head that is able to circulate ink. The inkjet head includes a diaphragm plate, a first restrictor plate, one or more chamber plates, a second restrictor plate, and an orifice plate. The orifice plate forms a plurality of nozzles. The chamber plates form a plurality of chambers corresponding with the nozzles, and also form a return manifold for receiving ink from the chambers when circulating the ink through the inkjet head. The diaphragm plate forms a diaphragm that seals the chambers. The first restrictor plate controls a flow of ink between the chambers and the return manifold to circulate the ink through the inkjet head. The second restrictor plate controls the flow of ink between a supply manifold and the chambers.