| Patent application number | Description | Published |
|---|
| 20090007428 | METHOD OF MANUFACTURING LIQUID DISCHARGE HEAD - A method of manufacturing a liquid discharge head including a plurality of passages on a substrate, the passages communicating with a plurality of discharge ports configured to discharge liquid. The method includes the step of forming first to fourth patterns, the first pattern having a shape of one passage of the passages, the second pattern having a shape of other passage of the passages, the third pattern being formed near the first pattern, the fourth pattern being formed near the second pattern, the first to fourth patterns being formed on the substrate. The method also includes coating the substrate with a cover layer covering the first to fourth patterns, removing the first pattern to form the one passage, and removing the second pattern to form the other passage. | 01-08-2009 |
| 20090183368 | METHOD OF MANUFACTURING INK JET RECORDING HEAD - A method of manufacturing an ink jet recording head includes the steps of: forming an adhesive layers and the side walls of a flow path on a substrate; pasting a dry film, which is a part of a flow path forming member, on the side walls; and forming discharge ports in the layer. | 07-23-2009 |
| 20090191487 | LIQUID JET HEAD, METHOD FOR MANUFACTURING LIQUID JET HEAD, AND METHOD FOR FORMING STRUCTURE FOR LIQUID JET HEAD - A liquid ejecting head including a coating resin layer including a plurality of ejection outlets for ejecting liquid and flow paths which are in fluid communication with the ejection outlets, respectively; an energy generating element for generating energy for ejecting liquid; and an adhesion improving layer provided between the coating resin layer and the substrate, wherein the coating resin layer further includes a first resin material layer closest to the substrate and at least one second resin material layer, and the first resin material layer provides at least one stepped portion continuing from a periphery of the second resin material layer. | 07-30-2009 |
| 20090303289 | LIQUID DISCHARGE RECORDING HEAD AND RECORDING APPARATUS - A liquid discharge recording head includes a flow passage forming member having discharge ports and a flow passage, the discharge ports configured to discharge droplets, the flow passage communicating with the discharge ports. The flow passage forming member also has a first opening and a second opening, the first opening provided at a surface of the flow passage forming member with the discharge ports, the second opening causing the inside of the first opening to communicate with the outside of the flow passage forming member through a communication passage. | 12-10-2009 |
| 20100147793 | METHOD FOR PRODUCING LIQUID DISCHARGE HEAD - The present invention provides a method for producing a liquid discharge head including a silicon substrate having, on a first surface, energy generating elements, and a supply port penetrating the substrate from the first surface to a second surface, which is a rear surface of the first surface of the substrate. The method includes the steps of: preparing the silicon substrate having a sacrifice layer at a portion on the first surface where the ink supply port is to be formed and an etching mask layer having a plurality of openings on the second surface, the volume of a portion of the sacrifice layer at a position corresponding to a portion between two adjacent said openings being smaller than the volume of a portion of the sacrifice layer at a position corresponding to the opening; etching the silicon substrate from the plurality of openings and etching the sacrifice layer. | 06-17-2010 |
| 20110018933 | INK JET RECORDING HEAD - An ink jet recording head includes a coating resin layer including a plurality of ejection outlets for ejecting ink and a plurality of ink flow passages communicating with the plurality of ejection outlets; a substrate provided with an energy generating element for generating energy for ejecting the ink; and an adhesiveness-improving layer, provided between the coating resin layer and the substrate, for improving adhesiveness between the coating resin layer and the substrate. The adhesiveness-improving layer has a thickness so as to be larger at an end portion of the substrate than that at a portion other than the end portion. | 01-27-2011 |
| 20110107598 | LIQUID EJECTION HEAD AND METHOD FOR MANUFACTURING LIQUID EJECTION HEAD - A liquid ejection head and a method of forming the same. The liquid ejection head includes a substrate, an ejection port, a liquid channel, and a supply port. The substrate has, above one side thereof, an energy generating element configured to generate energy used to eject liquid. The ejection port, from which a liquid is ejected, is located at a position corresponding to the energy generating element. The liquid channel communicates with the ejection port and penetrates the substrate from the one side to another side of the substrate. The supply port communicates with the liquid channel. The substrate has a projecting layer extending inward of an inner peripheral portion of an opening in the supply port in the one side, and the projecting layer and the energy generating element are formed of the same material. | 05-12-2011 |
