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5711891 |
Wafer processing using thermal nitride etch mask
A method for forming v-shaped grooves in a substrate such as a channel plate is disclosed. A mask of silicon nitride formed by a thermal nitridation process protects the substrate during KOH etching.
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5708466 |
Ink jet head having parallel liquid paths and pressure-directing wall
An ink jet head includes a first liquid path, the end of which defines a discharge port through which ink is ejected, and a second liquid path having a discharge energy generating element for...
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5708465 |
Thermal ink-jet head
A thermal ink-jet head of the present invention is so designed as to improve operating frequency by surely trapping foreign substances and reducing the influence of a cross stroke. In the thermal...
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5706041 |
Thermal ink-jet printhead with a suspended heating element in each ejector
In a thermal ink-jet printhead, a set of heating elements are formed in the main surface of a semiconductor chip. Channels are formed within the semiconductor chip underneath each of the heating...
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5703630 |
Ink jet head manufacturing method using ion machining and ink jet head manufactured thereby
An ink jet recording head manufacturing method for manufacturing ink jet recording head having an ink passage, wherein a droplet of ink is ejected through the passage from an ink ejection outlet at...
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5697144 |
Method of producing a head for the printer
To provide a method of fabricating, using thin-film processes only, a 1,600 dpi head with nozzles arranged two-dimensionally on a substrate, e.g., silicon wafer, a drive LSI, thin-film resistors...
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5694684 |
Manufacturing method for ink jet recording head
A manufacturing method for an ink jet recording head comprising ink ejection outlets, ink passages in fluid communication with the ink ejection outlets, an ink chamber for supplying ink to the ink...
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5686224 |
Ink jet print head having channel structures integrally formed therein
A plurality of a thermal ink jet printheads are fabricated from a heater wafer, on which a plurality of arrays of heaters, transducers and addressing logic are located on one surface thereof, by...
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5685074 |
Method of forming an inkjet printhead with trench and backward peninsulas
A means is provided to eliminate ink trajectory errors when an inkjet printhead is fabricated as described below. In a preferred embodiment, a nozzle member containing an array of orifices is...
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5669125 |
Method of manufacturing an ink-jet recording head
An ink-jet recording head includes a piezoelectric element, an ink cavity which is formed in the piezoelectric element to have a hollow shape and is filled with an ink, electrodes to which a drive...
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5666143 |
Inkjet printhead with tuned firing chambers and multiple inlets
An inkjet printer printhead is coupled to an ink source and has a plurality of ink firing chambers dimensionally defined by a barrier layer disposed between a substrate and an orifice plate. Two...
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5665249 |
Micro-electromechanical die module with planarized thick film layer
An improved microelectromechanical device, such as a thermal ink jet die or printhead, is formed by the alignment of two planar substrates bonded together by an intermediate thick film layer of...
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5663752 |
Ink jet head free of debonding between a substrate and ink flow path walls formed on said substrate
An ink jet head having a plurality of ink flow path walls forming a plurality of ink pathways by joining said plurality of ink flow path walls to a substrate for an ink jet head, said plurality of...
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5658471 |
Fabrication of thermal ink-jet feed slots in a silicon substrate
Improved methods for fabricating the ink feed slots in silicon substrate for use in thermal ink-jet print heads is disclosed. One method involves the partial anisotropic etching of an ink feed slot...
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5648805 |
Inkjet printhead architecture for high speed and high resolution printing
An improved ink flow path between an ink reservoir and ink ejection chambers in an inkjet printhead is disclosed along with a preferred printhead architecture. In the preferred embodiment, a...
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5648804 |
Compact inkjet substrate with centrally located circuitry and edge feed ink channels
An inkjet printhead includes a compact substrate having a pair of elongated edge portions for ink channel architecture, a central interior for substrate circuitry, and a pair of truncated end...
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5638101 |
High density nozzle array for inkjet printhead
Described is an inkjet print cartridge including an ink reservoir; a substrate having a plurality of individual ink firing chambers with an ink firing element in each chamber; said ink firing...
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5635966 |
Edge feed ink delivery thermal inkjet printhead structure and method of fabrication
This invention provides an apparatus and method of fabrication thereof for an inkjet printhead with an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet...
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5619236 |
Self-cooling printhead structure for inkjet printer with high density high frequency firing chambers
Disclosed is an inkjet print cartridge having an ink reservoir; a substrate having a plurality of individual ink firing chambers with an ink firing element in each chamber along a top surface of...
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5608436 |
Inkjet printer printhead having equalized shelf length
A printhead for an inkjet printer employs an ink fill slot having an extended portion disposed as a depression on the primary surface of the printhead substrate. The barrier layer of the printhead...
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5594481 |
Ink channel structure for inkjet printhead
Disclosed is an inkjet print cartridge including an ink reservoir; a substrate having a plurality of individual ink firing chambers with an ink firing element in each chamber along a top surface of...
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5585827 |
Printer head
In the printer head of this invention, the base component 1 and the lid component 5 can be easily bonded without clogging the groove 2 that serves as the ink flow channel. The eutectic alloy layer...
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5582678 |
Process for producing ink jet recording head
An ink jet recording head wherein a substrate with a groove for forming an ink pathway connected to an orifice for discharging ink and a plate member are bonded so as to form the ink pathway by ...
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5578418 |
Liquid jet recording head and recording apparatus having same
A process is disclosed for producing a liquid jet recording head comprising applying an active energy-curing resin composition onto at least a part of a surface of a first member for forming a wall...
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5578417 |
Liquid jet recording head and recording apparatus having same
A process is disclosed for producing a liquid jet recording head comprising applying an active energy-curing resin composition onto at least a part of a surface of a first member for forming a wall...
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5574487 |
Substrate with an etched silicon compound film and an ink jet head utilizing the substrate
A substrate comprising a supporting member and a treated article provided on the supporting member comprising: 1) a patterned resistor layer; 2) a patterned material provided on the patterned...
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5571659 |
Liquid jet recording head and recording apparatus using same
A process is disclosed for producing a liquid jet recording head comprising applying an active energy-curing resin composition onto at least a part of a surface of a first member for forming a wall...
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5558975 |
Liquid jet recording head and recording apparatus having same
A process is disclosed for producing a liquid jet recording head comprising applying an active energy-curing resin composition onto at least a part of a surface of a first member for forming a wall...
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5557308 |
Ink jet print head photoresist layer having durable adhesion characteristics
The ink jet print head has a sandwich structure of a top plate, a bottom plate, and a dry film photoresist intermediate layer that defines liquid pathways and discharge orifices. The photoresist...
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5543266 |
Active energy ray-curing resin composition
An active energy ray-curing resin composition comprises (i) a graft copolymerized polymer, (iii) an epoxy resin comprising at least one compound having one or more epoxy groups in the molecule and...
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5524784 |
Method for producing ink jet head by multiple development of photosensitive resin, ink jet head produced thereby, and ink jet apparatus with the ink jet head
A method for producing an ink jet head substrate with an ink passage communicated to an ink discharge opening comprises the steps of exposing a positive type photosensitive resin on a substrate...
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5519424 |
Ink jet print head
An ink jet print head in which the ink contained in a chamber is expelled through a nozzle in the form of droplets by the rapid heating of a heating element inside the chamber. The chamber is of...
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5519423 |
Tuned entrance fang configuration for ink-jet printers
A thermal ink-jet pen which includes a tuned printhead for ejecting droplets of ink onto a print medium is provided. The printhead comprises (a) a plurality of resistive elements, (b) a plurality...
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5510818 |
Transfer-molding resin composition for use to manufacture ink jet recording head, and ink jet recording head manufactured by using the same
An ink jet recording head having a fluid passage constituted by forming, on a substrate, an outer frame made of a hardened resin obtained by transfer molding, wherein a transfer-molding resin...
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5508725 |
Ink jet head having trapezoidal ink passages, ink cartridge and recording apparatus with same
An ink jet head includes a first member provided with an ejection energy generating element for generating energy contributable to ejection of ink; a second member provided with a recess for...
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5502471 |
System for an electrothermal ink jet print head
An electrothermal ink jet print head is constructed in layer structure, wherein the expansion direction of the ink vapor bubble is directed opposite to the ink-ejection direction. Each ink channel...
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5498306 |
Method and apparatus for manufacturing ink jet recording head
The present invention relates to an ink jet head manufacturing method including a pressurizing step for forming liquid passages communicating with discharge openings for discharging ink, by...
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5485186 |
Ink jet recording apparatus with efficient and reliable ink supply
An ink jet recording apparatus includes an orifice for ejecting ink; a heater for generating thermal energy to produce a bubble to eject the ink; an ink passage for supplying ink to the orifice,...
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5485181 |
Ink jet printhead with improved durability
Durability of ink jet printheads is improved by employing certain sulfur-containing adhesion promoters between the photoresist intermediate layer and the top plate having a noble metal surface.
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5483270 |
Substrate for ink jet head
An improved substrate for an ink jet head includes a pair of first wiring electrode layers disposed on a base member through a first electrode contact layer, and a pair of second wiring electrode...
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5482660 |
Method for fabricating an ink jet head having improved discharge port formation face
A method for fabricating an ink jet recording head in which at least liquid channels, discharge ports and a ceiling plate for the formation of an ink liquid chamber are laminated on a substrate...
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5478606 |
Method of manufacturing ink jet recording head
A method of manufacturing an ink jet recording head, having the steps of forming an ink flow path pattern on a substrate with the use of a dissoluble resin, the substrate having ink ejection...
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5463413 |
Internal support for top-shooter thermal ink-jet printhead
A "barrier reef" configuration, comprising a plurality of cays, or pillars, is provided, each pillar associated with the entrance to a firing chamber in a thermal ink-jet printhead. Each firing...
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5461406 |
Method and apparatus for elimination of misdirected satellite drops in thermal ink jet printhead
An apparatus and method for ejecting ink droplets from a plurality of nozzles located in the front face of a printhead controls front face geometries to ensure consistent image quality. A front...
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5455613 |
Thin film resistor printhead architecture for thermal ink jet pens
A thermal ink jet printhead including a thin film substrate with a plurality of polygon shaped thin film resistors, a barrier layer overlying the substrate, and respective firing chambers formed in...
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5450110 |
Connection between an ink jet head and an ink supply member in an ink jet recording apparatus
An ink jet recording head unit for performing a recording operation by discharging ink is desclosed. The ink jet recording head unit includes an ink jet head portion having an ink passage...
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5450108 |
Ink jet printhead which avoids effects of unwanted formations developed during fabrication
An improved thermal ink jet printhead is formed by the alignment and bonding of an anisotropically etched silicon wafer channel plate, containing a plurality of channel grooves, to a silicon wafer...
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5443942 |
Process for removing resist
A resist removing process and an apparatus therefor which markedly improve the resist removing efficiency by a resist removing liquid by jetting the resist removing liquid and a gas to the resist...
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5441593 |
Fabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachining
An ink fill slot can be precisely manufactured in a substrate utilizing photolithographic techniques with chemical etching, plasma etching, or a combination thereof. These methods may be used in...
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5436650 |
Ink jet recording head, process for producing the head and ink jet recording apparatus
An ink jet recording head comprises an ink path communicating with an orifice for discharging an ink, and energy-generating means for generating energy to be utilized for discharging the ink from...
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