| Patent application number | Description | Published |
|---|
| 20080252689 | LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a liquid discharge head including an energy generating element, which generates energy utilized for discharging a liquid, and a discharge portion provided at a position facing the energy generating element and having a discharge port for discharging the liquid is provided. This method includes the steps of forming a negative photosensitive resin layer used for a member that forms the discharge port on the substrate, and exposing the layer to an i-line to form the discharge portion that is tapered in a direction from the substrate to the discharge port, wherein the layer has an absorbance per 1 μm thickness of about 0.02 to about 0.07 for light used for the exposure. | 10-16-2008 |
| 20090095708 | METHOD FOR MANUFACTURING LIQUID DISCHARGE HEAD - A method for manufacturing a liquid discharge head including a substrate on which supply ports for supplying a liquid are provided, includes forming a first supply port among the supply ports by performing crystal anisotropic etching on the substrate from one surface of the substrate, and forming a plurality of second supply ports among the supply ports by performing dry etching on the substrate using a crystal anisotropic etching method from a surface exposed toward the one surface of the substrate to a rear surface so that the independent second supply ports are respectively opened on the rear surface. | 04-16-2009 |
| 20090133256 | MANUFACTURING METHOD OF LIQUID EJECTION HEAD - A manufacturing method of a liquid ejection head provided with a flow passage communicating with an ejection outlet for ejecting liquid includes steps of preparing a substrate on which a flow passage wall forming member for forming a part of a wall of the flow passage and a solid layer having a shape of a part of the flow passage contact each other, wherein the flow passage wall forming member has a height, from a surface of the substrate, substantially equal to that of the solid layer; providing on the solid layer a pattern having a shape of another part of the flow passage; providing a coating layer, for forming another part of the wall of the flow passage, so as to coat the pattern; providing the ejection outlet to the coating layer; and forming the flow passage by removing the solid layer and the pattern. | 05-28-2009 |
| 20090136875 | MANUFACTURING METHOD OF LIQUID EJECTION HEAD - A manufacturing method of a liquid ejection head including an ejection outlet forming member provided with an ejection outlet for ejecting liquid and a flow passage communicating with the ejection outlet is constituted by the steps of: preparing a substrate on which a flow passage wall forming member for forming a part of a wall of the flow passage and a solid layer having a shape of a part of the flow passage contact each other, wherein the flow passage wall forming member has a height, from a surface of the substrate, substantially equal to that of the solid layer; providing a first layer, on the solid layer and the flow passage wall forming member, formed of a negative photosensitive resin material for forming another part of the wall of the flow passage; exposing to light a portion of the first layer correspondingly to the another part of the wall of the flow passage; providing a second layer, on the exposed first layer, formed of a negative photosensitive resin material to constitute the ejection outlet forming member; exposing to light a portion of the second layer correspondingly to the ejection outlet forming member; and forming the ejection outlet and another part of the flow passage by removing unexposed portions of the first layer and the second layer. | 05-28-2009 |
| 20090167812 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing a liquid discharge head including: forming a first pattern for forming the flow path on the substrate; forming a first coating layer which covers the first pattern; forming a hole in the first coating layer, through which the first pattern is exposed; forming a second pattern for forming the flow path on the first coating layer, such that the second pattern contacts with the first pattern through the hole; forming a second coating layer for covering the second pattern; forming the discharge port in the second coating layer; and removing the first pattern and the second pattern to form the flow path. | 07-02-2009 |
| 20090267997 | INK JET HEAD - An ink jet head includes a substrate having an ink supply port; an ejection outlet for ejecting ink supplied through the supply port; a flow path portion which provides fluid communication between the supply port and the ejection outlet; wherein the flow path portion includes a near portion which is near to the substrate and a remote portion which is remote from the substrate, and a width of the near portion is different from a width of the remote portion in a sectional plane perpendicular to a direction of flow of the ink, and wherein a stepped portion is provided between the near portion and the remote portion. | 10-29-2009 |
| 20090314742 | METHOD FOR PROCESSING SUBSTRATE AND METHOD FOR PRODUCING LIQUID EJECTION HEAD AND SUBSTRATE FOR LIQUID EJECTION HEAD - A method for processing a substrate includes preparing a substrate having a first layer on a first surface side thereof, the first layer having a material capable of suppressing transmission of laser light, processing the substrate with laser light from a second surface that is opposite the first surface of the substrate toward the first surface of the substrate, and allowing the laser light to reach the first layer to form a hole in the substrate, and performing etching of the substrate from the second surface through the hole. | 12-24-2009 |
| 20100149260 | INK JET HEAD AND METHOD OF MANUFACTURING THE SAME - An ink jet head includes a Si substrate with a surface having a {100} orientation; a passage holding ink on the Si substrate; an ink discharge port which is communicatively connected to the passage and through which ink is ejected; and a supply port which extends through the Si substrate, which is communicatively connected to the passage, and which supplies ink to the passage. The supply port has walls having two {111} planes facing each other. | 06-17-2010 |
| 20100156990 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE LIQUID DISCHARGE HEAD - A liquid discharge head includes an Si substrate which is provided with an element for generating energy used in discharging a liquid and a liquid supply port which is provided to pass through the Si substrate from first surface to rear surface so as to supply a liquid to the element. A method of manufacturing the substrate includes: forming a plurality of concave portions on the rear surface of the Si substrate of which a plane orientation is {100}, the concave portions facing the first surface and aligned in rows along a <100> direction the first surface; and forming a plurality of the supply ports by carrying out a crystal axis anisotropic etching on the Si substrate through the concave portions using an etching liquid of which an etching rate of the {100} plane of the Si substrate is slower than that of the {110} plane of the Si substrate. | 06-24-2010 |
| 20100287773 | METHOD FOR MANUFACTURING MICROSTRUCTURE, AND METHOD FOR MANUFACTURING LIQUID JETTING HEAD - A manufacturing method for a liquid ejecting head, wherein said liquid ejection head includes a flow passage wall member having an ejection outlet for ejecting liquid and the liquid flow path in fluid communication with the ejection outlet, said manufacturing including providing a substrate provision an organic resin material layer of organic resin material for forming the flow passage wall member; and forming the flow passage wall member by forming the flow path and the ejection outlet by removing partly said organic resin material layer by illuminating the organic resin material layer with a laser beam which has a pulse width of not less than 2 picosec and not more than 20 picosec and which has a focal point inside said organic resin material layer, with movement of the focal point of the laser beam. | 11-18-2010 |
| 20110070667 | METHOD OF PROCESSING SUBSTRATE AND METHOD OF MANUFACTURING SUBSTRATE FOR USE IN LIQUID EJECTION HEAD - A substrate processing method includes preparing a substrate, a first mask adjacent to a first surface of the substrate and including a first light transmitting portion allowing light to be transmitted therethrough, a condenser adjacent to the first surface, a second mask including a second light transmitting portion, and a photo detecting member including a photo detecting portion detecting light having passed through the second light transmitting portion, the condenser condensing light having passed through the first light transmitting portion toward the second light transmitting portion, the second light transmitting portion allowing the light condensed by the condenser to be transmitted therethrough, and forming a recess in the substrate by laser beam irradiation from a direction opposite to the first surface. When an intensity of the laser beam detected by the photo detecting portion is at or above a specific intensity, the irradiation of the laser beam is stopped. | 03-24-2011 |
| 20110108532 | LASER PROCESSING METHOD - Provided is a laser processing method capable of improving precision of a processing shape and degree of freedom of the processing shape. When a recess portion is formed in a substrate (W) which is an object to be processed, an inner portion of the substrate (W) is scanned with a condensing point (L | 05-12-2011 |
