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    Process for protectively coating hydraulic microcircuits against agressive liquids, particularly for an ink jet printhead
    21.
    发明授权
    Process for protectively coating hydraulic microcircuits against agressive liquids, particularly for an ink jet printhead 有权
    用于保护性地将液压微电路防止侵蚀性液体，特别是用于喷墨打印头的方法

    公开(公告)号：US07332100B2

    公开(公告)日：2008-02-19

    申请号：US10539121

    申请日：2003-12-19

    Applicant: Lucia Giovanola ,  Renato Conta

    Inventor： Lucia Giovanola ,  Renato Conta

    IPC: G01D15/00 ,  G11B5/127

    CPC classification number: B41J2/1606 ,  B41J2/1404 ,  B41J2/1603 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/164

    Abstract: Process for protectively coating against aggressive liquids hydraulic microcircuits made in a resin, particularly for an ink jet printhead, consisting of: disposing of a silicon substrate comprising a sacrificial layer of copper, deposited on the substrate and defining the inner shape of the hydraulic microcircuits; depositing on top of the outer surface of the sacrificial layer, by means of an electrochemical process, at least one protective, metallic coating layer; applying on the sacrificial layer a non-photosensitive epoxy or polyamide resin, having a predetermined thickness and suitable for completely covering the sacrificial layer; effecting a polymerization of the resin to increase its mechanical resistance to mechanical and thermal stresses and performing a planarization of the outer surface of the resin, by means of a mechanical lapping and simultaneous chemical treatment; removing the sacrificial layer through a chemical etching in a highly acid bath; and depositing a metallic, protective layer on the outer surface of the resin through vacuum evaporation.

    Abstract translation: 用于保护性地涂覆侵蚀性液体的方法，特别是用于喷墨打印头的树脂制成的液压微电路，包括：沉积在基板上并限定液压微电路的内部形状的包括铜牺牲层的硅基板; 通过电化学工艺沉积在牺牲层的外表面的顶部上，至少一个保护性金属涂层; 在牺牲层上施加具有预定厚度并适于完全覆盖牺牲层的非感光性环氧树脂或聚酰胺树脂; 通过机械研磨和同时化学处理实现树脂的聚合以增加其对机械和热应力的机械抵抗力并执行树脂的外表面的平坦化; 通过在高酸浴中的化学蚀刻去除牺牲层; 以及通过真空蒸发在所述树脂的外表面上沉积金属保护层。

    Monolithic printhead with built-in equipotential network and associated manufacturing method
    22.
    发明授权
    Monolithic printhead with built-in equipotential network and associated manufacturing method 有权
    具有内置等电位网络和相关制造方法的单片打印头

    公开(公告)号：US07279111B2

    公开(公告)日：2007-10-09

    申请号：US10845332

    申请日：2004-05-14

    Applicant: Renato Conta ,  Mara Piano

    Inventor： Renato Conta ,  Mara Piano

    IPC: G01D15/00

    CPC classification number: B41J2/1631 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2202/03

    Abstract: An actuating assembly (50) for ink jet printheads consists of a silicon die (61), which comprises a groove (45) and a lamina (64), and of a structure (75) produced monolithically in the same production process. The actuating assembly (50) comprises a microhydraulics (63), the latter in turn comprising a plurality of channels (67) and chambers (57), made inside the structure (75) by means of a sacrificial metallic layer (54). A conducting layer (26) forms a single interconnected equipotential network used as the electrode during the processes of electrochemical etch stopping on the groove (45), of electrodeposition of the sacrificial layer (54) and of the latter's subsequent removal.

    Abstract translation: 用于喷墨打印头的致动组件（50）由在同一生产过程中整体制造的包括凹槽（45）和薄片（64）以及结构（75）的硅模具（61）组成。 致动组件（50）包括微液压（63），后者又包括通过牺牲金属层（54）制成在结构（75）内部的多个通道（67）和腔室（57）。 导电层（26）在电化学蚀刻停止在凹槽（45）的过程中，形成用作电极的单个互连的等电位网络，电沉积牺牲层（54）并且随后移除。

    Monolithic printhead with self-aligned groove and relative manufacturing process
    25.
    发明授权
    Monolithic printhead with self-aligned groove and relative manufacturing process 有权
    具有自对准凹槽和相关制造工艺的单片打印头

    公开(公告)号：US06887393B2

    公开(公告)日：2005-05-03

    申请号：US10344412

    申请日：2001-08-22

    Applicant: Renato Conta ,  Anna Merialdo

    Inventor： Renato Conta ,  Anna Merialdo

    IPC: B41J2/14 ,  B41J2/16 ,  H01L21/00

    CPC classification number: B41J2/14145 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/1642

    Abstract: A monolithic thermal ink jet printhead (40) comprising a groove (45), a plurality of chambers (74) and nozzles (56) is manufactured by means of steps of: (203, 205) partially etching the groove (45) by means of a “dry” process and a “wet” process; (210) depositing a plurality of sacrificial layers (54); (212) obtaining a plurality of casts (156); (216) completing the etching of the groove (45) by means of an electrochemical process; and (220) removing the casts (156) and the sacrificial layers (54) in such a way as to obtain a plurality of nozzles (56) and chambers (74).

    Abstract translation: 通过以下步骤制造包括凹槽（45），多个室（74）和喷嘴（56）的单片式热喷墨打印头（40）：（203,205）通过装置部分蚀刻凹槽（45） 的“干”过程和“湿”过程; （210）沉积多个牺牲层（54）; （212）获得多个铸件（156）; （216）通过电化学工艺完成凹槽（45）的蚀刻; 和（220）以获得多个喷嘴（56）和室（74）的方式移除铸件（156）和牺牲层（54）。

    Thermal ink jet print head with removable ink cartridge
    27.
    发明授权
    Thermal ink jet print head with removable ink cartridge 失效
    热喷枪喷头喷头与可拆卸的墨盒

    公开(公告)号：US5119115A

    公开(公告)日：1992-06-02

    申请号：US542908

    申请日：1990-06-25

    Applicant: Mario Buat ,  Renato Conta ,  Adriano Fetta

    Inventor： Mario Buat ,  Renato Conta ,  Adriano Fetta

    IPC: B41J2/05 ,  B41J2/175

    CPC classification number: B41J2/1752 ,  B41J2/17513

    Abstract: In a thermal ink jet print head the ink is expelled in the form of small drops through a plurality of nozzles communicating with corresponding expulsion chambers for expulsion of the ink through the effect of rapid heating of heater elements contained in the expulsion chambers. The nozzles, the expulsion chambers, the heater elements and the associated electrical conductors are constructed in a plurality of metal layers and insulating layers supported by a silicon plate. The plate is fixed to the structure of the head and is supplied with ink contained in a movable cartridge fitted to the structure of the head. The cartridge comprises a rigid reservoir containing a sponge saturated with ink which can be hydraulically connected to the head by means of a needle-type conduit mounted on the head and which perforates a rubber membrane of the cartridge. During the periods of storage and inactivity of the head, the cartridge is removed, permitting drying of the nozzles to avoid possible nozzle blockages and corrosion of the layers of the plate by the ink.

    Dot writing head for high definition printers, and a method of manufacturing the same
    28.
    发明授权
    Dot writing head for high definition printers, and a method of manufacturing the same 失效
    用于高分辨率打印机的点写头及其制造方法

    公开(公告)号：US4385306A

    公开(公告)日：1983-05-24

    申请号：US166258

    申请日：1980-07-07

    Applicant: Renato Conta

    Inventor： Renato Conta

    IPC: G03G15/05 ,  B41J2/32 ,  B41J2/395 ,  B41J2/425 ,  H04N1/032 ,  H04N1/29 ,  G01D15/06

    CPC classification number: B41J2/395

    Abstract: The head is composed of a series of electrically conductive elements in one or more rows, which elements are selectively subjected to a high potential relative to the coacting electrode.The elements have a thickness of less than to 50.mu. and a pitch less than 100.mu.. The elements may be disposed in a plurality of rows on a cylindrical, rotatable head.In a modified embodiment the elements are disposed on the edge of a plate, in a row extending over the length of the line.

    Abstract translation: 头部由一行或多列中的一系列导电元件组成，该元件选择性地经受相对于共同作用电极的高电位。 这些元件的厚度小于50微米，间距小于100微米。 这些元件可以在圆柱形可旋转头部上以多列布置。 在一个改进的实施例中，这些元件设置在板的边缘上，在该线的长度上延伸。

    Electrothermal print head
    29.
    发明授权
    Electrothermal print head 失效

    公开(公告)号：US3967092A

    公开(公告)日：1976-06-29

    申请号：US512564

    申请日：1974-10-07

    Applicant: Renato Conta ,  Lucio Montanari ,  Riccardo Brescia

    Inventor： Renato Conta ,  Lucio Montanari ,  Riccardo Brescia

    IPC: B41J2/32 ,  B41J2/325 ,  B41J2/335 ,  B41J2/345 ,  B41J25/304 ,  B41J25/34 ,  H05B1/00

    CPC classification number: B41J2/345 ,  B41J25/34

    Abstract: A removably mountable electrothermal print head for writing dots-matrix characters while moving along a thermosensitive recording medium and a mounting for the hand or a movable carriage of a printer, the head comprises a plurality of electrically energizable resistive printing elements coated on a support; the outer surface of said elements is partly cylindrical with the generatrices in parallel relation with a common direction which is transversal with respect to the printing line of the recording medium. The print head is positioned with respect to the recording medium with the part-cylindrical outer surface of the resistive printing elements in tangential relation with the recording medium. The printing head is positioned on and removably fixed to the carriage by a manually actuatable latch.

    Parallel ink jet printing device and relative manufacturing
    30.
    发明授权
    Parallel ink jet printing device and relative manufacturing 有权
    平行喷墨印刷装置及相关制造

    公开(公告)号：US07984978B2

    公开(公告)日：2011-07-26

    申请号：US10530407

    申请日：2003-10-08

    Applicant: Renato Conta ,  Enrico Manini

    Inventor： Renato Conta ,  Enrico Manini

    IPC: B41J2/175 ,  B41J2/17

    CPC classification number: B41J2/14024 ,  B41J2/145 ,  B41J2202/20

    Abstract: The printing device is ink jet, parallel or serial-parallel type and comprises a plurality of ejection modules each of which with ejection chambers suitable for containing ink and with associated relative heating elements for ink ejection control. The device includes a support and a nozzle plate common to the modules, and in which the support includes a base plate of rigid material that defines through its thickness a feeding duct for the ink which, in use, is substantially parallel to the line of printing (X axis) and the ejection modules are fixed side by side on the base plate and with the ejection chambers arranged in a line in the same direction (X axis), is a hydraulic, tight connection with the feeding duct. The nozzle plate is fixed on the ejection modules constituting an upper, hydraulically tight, closing surface, for the chambers and comprises a plurality of ejection nozzles in a line, in turn in hydraulic connection with corresponding cells of the modules.

    Abstract translation: 打印装置是喷墨，平行或串行并行类型，并且包括多个喷射模块，每个喷射模块具有适于容纳油墨的喷射室和用于喷墨控制的相关联的相关加热元件。 该装置包括支撑件和模块共用的喷嘴板，并且其中支撑件包括刚性材料的基板，其通过其厚度限定用于油墨的进料管道，该进料管道在使用中基本上平行于印刷线 （X轴）并且喷​​射模块在基板上并排固定，并且沿相同方向（X轴）排成一列的喷射室是与进给管道的液压紧密连接。 喷嘴板固定在构成用于腔室的上部液压紧密闭合表面的喷射模块上，并且包括多个沿着管线的喷嘴，并且与模块的相应的单元液压连接。

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