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Sii Printek Inc patents


Recent patent applications related to Sii Printek Inc. Sii Printek Inc is listed as an Agent/Assignee. Note: Sii Printek Inc may have other listings under different names/spellings. We're not affiliated with Sii Printek Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Sii Printek Inc-related inventors


 new patent  Liquid jet head, liquid jet recording device, method for driving liquid jet head, and program for driving liquid jet head

Reduction of the size of the droplet in 1-drop ejection is easily performed. A liquid jet head according to an example of the disclosure includes a nozzle adapted to jet a liquid, a piezoelectric actuator having a pressure chamber communicated with the nozzle and filled with the liquid, and adapted to vary a capacity of the pressure chamber, and a control section adapted to apply a pulse signal to the piezoelectric actuator to thereby expand and contract the capacity of the pressure chamber so as to jet the liquid filling the pressure chamber. ... Sii Printek Inc

Liquid jet head, liquid jet recording device, and liquid jet head drive method

An ejection volume of a liquid can more finely be adjusted without lowering the ejection speed. The liquid jet head includes a plurality of nozzles adapted to jet the liquid, a piezoelectric actuator having a plurality of pressure chambers corresponding respectively to the nozzles and filled with the liquid, and adapted to vary a capacity of each of the pressure chambers, and a control section adapted to apply a pulse signal to the piezoelectric actuator to thereby expand and contract the capacity of the pressure chamber so as to jet the liquid with which the pressure chamber is filled. ... Sii Printek Inc

Full-bridge circuit, liquid jet head, and liquid jet recording device

An overvoltage is prevented from being applied to a circuit. A full-bridge circuit is provided with a first switch having an output terminal connected to one end of a capacitive load, and switching output to the output terminal between a power supply and a ground, a second switch having an output terminal connected to the other end of the capacitive load, and switching output to the output terminal between the power supply and the ground, a first waveform generation section adapted to output a drive waveform for driving the first switch, a second waveform generation section adapted to output a drive waveform for driving the second switch, a detection section adapted to detect voltages of the drive waveforms output by the first waveform generation section and the second waveform generation section, and a control section adapted to control the output of either of the switches based on the voltages detected by the detection section.. ... Sii Printek Inc

Method for manufacturing ejection hole plate

A method for manufacturing a nozzle plate is a method for manufacturing a nozzle plate with nozzle holes for ejecting an ink. The method includes: a hole making process for making a plurality of holes to be the nozzle holes in a base material for the nozzle plate; and a repair process for repairing a defective hole, out of the plurality of holes, in which a hole diameter of a portion to be a downstream opening along a direction of ink flow is smaller than a desired hole diameter. ... Sii Printek Inc

Plate body, liquid ejection head, and liquid ejection recording apparatus

A plate body includes: a nozzle plate that is provided on an actuator plate having a plurality of channels to be filled with a liquid and has a nozzle array composed of a plurality of nozzle holes communicating separately with the plurality of channels; and a nozzle cover plate that is provided on a discharge surface of the nozzle plate from which the liquid is discharged and has an opening communicating with at least one of the nozzle holes. The opening is formed such that a direction crossing a direction of the nozzle array and a direction orthogonal to the direction of the nozzle array constitutes a longitudinal direction of the opening.. ... Sii Printek Inc

Liquid jet head and liquid jet recording device

There is provided a liquid jet head capable of preventing a damage of an actuator plate without degrading the quality of characters and images to be recorded on a recording medium. The liquid jet head includes a nozzle plate, an actuator plate provided with an exposed area exposed from the nozzle plate, a nozzle guard provided with an opening section, and a bonding layer disposed at least between the actuator plate including the exposed area and the nozzle guard and bonding the actuator plate and the nozzle guard to each other. ... Sii Printek Inc

Liquid ejection head, method for manufacturing liquid ejection head, liquid ejection apparatus

A liquid ejection head includes: actuator plates having discharge channels to be filled with an ink; sub-plates stacked on the −z-direction end surfaces of discharge channels in the actuator plates along a flow direction of the ink and having communication paths communicating with the discharge channels; and a nozzle plate stacked on the −z-direction end surfaces of the communication paths in the sub-plates along the flow direction and having nozzle holes communicating with the discharge channels through the communication paths. The −z-direction end surfaces of the sub-plates are polished.. ... Sii Printek Inc

Ejection hole plate, liquid ejection head, and liquid ejection apparatus

The present invention relates to a nozzle plate having small-diameter nozzle holes and large-diameter nozzle holes that are larger in diameter than the small-diameter nozzle holes and communicate with the small-diameter nozzle holes on the downstream side along the direction of ink flow.. . ... Sii Printek Inc

Liquid jet head and liquid jet apparatus

A liquid jet head includes: a nozzle plate including a nozzle array, the nozzle array including a plurality of nozzle holes each extending in a z direction, the nozzle holes being arranged side by side in an x direction; a head chip disposed in a +z direction with respect to the nozzle plate and including ejection channels communicating with the respective nozzle holes; a manifold disposed in a +y direction with respect to the head chip, the manifold being configured to support the head chip by a face facing a −y direction and including an ink flow path communicating with the ejection channels; and a drive board supported on the face facing the −y direction of the manifold and electrically connected to the head chip.. . ... Sii Printek Inc

Liquid jet head and liquid jet apparatus

A liquid jet head includes: a head chip including a channel to be filled with ink; a manifold that supports the head chip and includes an ink flow path communicating with the ejection channel; and a heater and a drive board that are supported on the manifold and heat ink inside the ink flow path. The ink flow path extends in a meandering manner.. ... Sii Printek Inc

Carriage and liquid jet recording apparatus

A carriage includes: a base plate; a liquid jet head including a support plate attached to the base plate; a first engagement portion formed on one end in a y direction of the support plate; a fixing tool for positioning and fixing the support plate with respect to the base plate, the fixing tool being fixed to the base plate slidably in an x direction by screws and engaged with the first engagement portion; and a flat spring portion that presses the fixing tool toward the base plate. The fixing tool allows movement in the y direction of the first engagement portion with respect to the fixing tool, and restricts movement in the x direction of the first engagement portion and movement in a thickness direction of the base plate of the first engagement portion with respect to the fixing tool.. ... Sii Printek Inc

Liquid ejection head

A liquid ejection head includes: a piezoelectric actuator configured to be deformed depending on a driving pulse applied thereto so as to eject liquid filled in a pressure chamber from a nozzle, a ratio of a first local maximum value which is a largest value among a plurality of local maximum values of an ejection speed of the liquid depending on a pulse width and a second local maximum value which is a second largest value thereamong satisfying a predetermined condition; and a control unit configured to successively apply a first driving pulse and a second driving pulse to the piezoelectric actuator.. . ... Sii Printek Inc

Maintenance method of liquid ejection printing device

A maintenance method of a liquid ejection printing device includes: forming a lump of trapped liquid in a nozzle plate to cover a nozzle hole and a surrounding of the nozzle hole with ink while a printing operation on a printing medium is performed and the liquid is not ejected; and suctioning the lump of trapped liquid into an ejection channel after the forming of the lump of trapped liquid.. . ... Sii Printek Inc

Liquid jet head and liquid jet device

The present invention relates to a liquid jet device comprising an actuator plate on which injection channels and non-injection channels are arranged side by side, a cover plate laminated on a surface of the actuator plate and including slits communicating into the injection channels, common electrodes and individual electrodes formed on inner surfaces of the injection channels and the non-injection channels, and common wires and individual wires formed on surfaces of bank portions of the actuator plate, and common pad portions and individual pad portions connected to the common wires and the individual wires, and connected to flexible boards in protruding end portions are formed in a portion of a back surface of the cover plate outside the slits.. . ... Sii Printek Inc

06/15/17 / #20170165987

Carriage and liquid jet recording apparatus

A carriage includes a base plate, a liquid jet head which includes a support plate attached to the base plate, a first engagement portion which is formed on one end in a y direction of the support plate, and a fixing tool for positioning the support plate with respect to the base plate, the fixing tool being slidable in an x direction with respect to the base plate and engaged with the first engagement portion. The fixing tool allows movement in the y direction of the first engagement portion with respect to the fixing tool, and restricts movement in the x direction of the first engagement portion and movement in the thickness direction of the base plate of the first engagement portion with respect to the fixing tool.. ... Sii Printek Inc

06/08/17 / #20170157923

Liquid jet head, liquid jet recording device, and method of manufacturing liquid jet head

A nozzle plate including nozzle arrays with a plurality of nozzle holes, actuator plates to be filled with ink, and a nozzle guard provided so as to cover the nozzle plate for protecting the nozzle plate are included. The nozzle guard includes a frame body formed to surround a periphery of the nozzle plate, and a cover body that blocks an opening portion of the frame body and in which slits that expose the nozzle arrays is formed. ... Sii Printek Inc

06/01/17 / #20170151785

Liquid jet head, method of manufacturing liquid jet head, and liquid jet device

A liquid jet head according to the present invention includes a partition separating adjacent grooves, a lower substrate fixing a lower portion of the partition, and an upper substrate installed on an upper end surface of the partition, the partition including an electrode layer on a surface lower than the upper end surface, the electrode layer including an outer surface approximately perpendicular to the upper end surface, and the outer surface continuing to the upper end surface through a first convex curved surface curving outward.. . ... Sii Printek Inc

05/11/17 / #20170129239

Manufacturing method of liquid jet head, liquid jet head, and liquid jet apparatus

A manufacturing method of a liquid jet head includes: a groove formation step of forming ejection grooves and non-ejection grooves alternately in the upper surface of an actuator substrate; a cover plate processing step of forming a recessed portion in the upper surface of a cover plate and slits penetrating from the bottom surface of the recessed portion to the lower surface opposite to the upper surface; an electrode formation step of forming conductive films on the both side surfaces and front surface of the ejection grooves, the both side surfaces of the non-ejection grooves, the inner surfaces of the slits and the recessed portion, and the lower surface of the cover plate; and a substrate joining step of joining the lower surface of the cover plate to the upper surface of the actuator substrate so as to communicate the slits with the ejection grooves.. . ... Sii Printek Inc

04/20/17 / #20170106663

Liquid jet head and liquid jet apparatus

A liquid jet head includes a spacer plate that has one surface on which an actuator plate is positioned and has a side flow path communicating with ejection grooves, and an air bubble retention suppression unit that is provided on the spacer plate and suppresses retention of air bubbles in the side flow path.. . ... Sii Printek Inc

03/30/17 / #20170087840

Liquid jet head and liquid jet apparatus

A liquid jet head includes ejection channels which extend in a channel extending direction and are filled with ink, dummy channels which extend in the channel extending direction and are not filled with ink, and a nozzle plate which is laminated on an actuator plate and includes nozzle holes each communicating with the corresponding ejection channel at a central part in the channel extending direction of the ejection channel. The actuator plate includes a first channel row and a second channel row each of which includes the ejection channels and the dummy channels alternately arranged side by side in the x direction, the first and second channel rows being spaced apart in the channel extending direction. ... Sii Printek Inc

03/02/17 / #20170057229

Ink jet head and liquid jet recording apparatus

An exposure portion which exposes a protection plate is formed on a back face of a nozzle plate at a part of a position other than an actuator joining face of the nozzle plate.. . ... Sii Printek Inc








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