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Patent

Ink jet recording head

TLDR
In this paper, an ink-jet recording head includes a discharge-port portion including a first dischargeport portion continuing from a discharge port, and a second dischargeport part communicating the first discharge port portion with a bubble generation chamber.
Abstract
An ink-jet recording head includes a discharge-port portion including a first discharge-port portion continuing from a discharge port, and a second discharge-port portion communicating the first discharge-port portion with a bubble generation chamber. The second discharge-port portion has an end surface that includes a border portion bordering the first discharge-port portion and is parallel to a main surface of an element substrate. The cross-sectional area of the second discharge-port portion, anywhere from an opening surface facing the bubble generation chamber to an end surface facing the first discharge-port portion, that is parallel to the main surface of the element substrate, is larger than the area of the border portion. The cross section of the opening surface of the second discharge-port portion has a length in a direction perpendicular to an arrangement direction of the discharge ports that is greater than its length in a direction parallel to the arrangement direction.

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Citations
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Patent

Ink jet type recording head

TL;DR: An ink jet type recording head composed of a plurality of head units and having a large number of nozzles without greatly increasing the width of the recording head can be found in this article.
Patent

Liquid ejecting head and liquid ejecting apparatus

TL;DR: In this article, a liquid-ejecting head includes a channel which is in communication with a nozzle opening and which includes a pressure-generating chamber, a circulation channel that serves to circulate a liquid in the channel, and a pressure generator which serves to generate pressure change.
Patent

Ink-jet head

TL;DR: In this paper, an ink-jet head includes a plurality of nozzles that eject ink, an ink flow passage that communicates at one end with a corresponding one of the pressure chambers and at the other end with the common ink chamber.
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Liquid-jet head and liquid-jet apparatus

TL;DR: A liquid-jet head is composed of a plurality of head bodies, each having a head case disposed on a passage-forming substrate at a surface opposite to the nozzle plate and having paths for supplying liquid to the pressure generating chamber therethrough.
Patent

Liquid droplet jetting apparatus

TL;DR: A liquid droplet jetting apparatus as discussed by the authors includes a jetting head unit which has a nozzle which jets droplets of a liquid, and a heat generating section, a suction port which is formed in the jetting unit, and which opens near the nozzle.
References
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Patent

Bubble jet recording method and apparatus in which a heating element generates bubbles in multiple liquid flow paths to project droplets

TL;DR: In this paper, liquid droplets are formed by instantaneous state change by thermal energy of a liquid filled in a thermal chamber, said droplets being deposited onto a recording member to achieve recording.
Patent

Liquid jet recording head

Yokota Masami
TL;DR: In this article, a cover lid plate is formed by laminating a SiO2 layer to the surface of a core material comprising glass, a resin or a metal, where an ink supply hole 4a is provided at a predetermined position and a recessed part 4b is provided to the part corresponding to the ink supply chamber 3, in order to impact corrosion resistance, ink shielding property and the diffusion preventing effect of a metal ion from the core material by immersing said core material 7a in a silicon dioxide solution before baking.
Patent

Droplet generating method and apparatus thereof

TL;DR: A recording head with transistors, gates and a latch circuit for driving plural heating elements is described in this paper, where a conductive member is connected electrically to heating elements.
Patent

Ink jet recording method

TL;DR: An ink jet recording method which comprises contacting or bringing closer an electro-thermal transducer with or to a recording liquid in an operating chamber having a discharge orifice is described in this article.
Patent

Liquid jet recording device

TL;DR: A liquid jet recording device comprises: a recording head having liquid discharging orifice for discharging liquid in a predetermined direction, a heat generating member, heat acting zone where heat energy generated from the heat generator acts on the liquid, and liquid feeding path for feeding the liquid to the heat acting area as mentioned in this paper.