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 |
20090025221 | LIQUID DISCHARGE HEAD MANUFACTURING METHOD - A manufacturing method for a liquid discharge head that includes a discharge port forming die member, where discharge ports for discharging liquid are formed, and liquid flow paths that communicate with the discharge ports, includes the steps of mounting, on a substrate, a first side wall forming member for forming portions of side walls of the liquid flow paths, forming, on the first side wall forming member, a first photosensitive material layer that serves as a second side wall forming member for formation of the other portions of the side walls, patterning the first photosensitive material layer to provide the second side wall forming member, forming, on the second side wall forming member, a second photosensitive material layer that serves as the discharge port forming member, and patterning the second photosensitive material layer to provide the discharge ports. | 01-29-2009 |
20090284567 | INK JET RECORDING HEAD, PRODUCING METHOD THEREFOR AND COMPOSITION FOR INK JET RECORDING HEAD - The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provides a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor. | 11-19-2009 |
20100094024 | ACTIVE ENERGY RAY CURABLE LIQUID COMPOSITION AND LIQUID CARTRIDGE - The invention provides an active energy ray curable liquid composition containing a compound represented by a general formula (I): | 04-15-2010 |
20100159405 | METHOD OF MANUFACTURING STRUCTURE AND METHOD OF MANUFACTURING INK JET HEAD - According to the fine pattern manufacturing method of the invention, the residue of a pattern which is obtained by pressing a mold is prevented from occurring, so that the structure can be more easily manufactured. | 06-24-2010 |
20100309247 | INK JET RECORDING HEAD, PRODUCING METHOD THEREFOR AND COMPOSITION FOR INK JET RECORDING HEAD - The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provide a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor. | 12-09-2010 |
20110122198 | INK JET RECORDING HEAD, PRODUCING METHOD THEREFOR AND COMPOSITION FOR INK JET RECORDING HEAD - The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provides a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor. | 05-26-2011 |
20140070212 | SEMICONDUCTOR DEVICE HAVING CAPABILITY OF GENERATING CHIP IDENTIFICATION INFORMATION - A semiconductor device having a capability of generating chip identification information includes: an SRAM macro having a plurality of memory cells arranged in rows and columns; a test address storage unit configured to store a test address; a self-diagnostic circuit configured to output the test address based on a result of confirmation of operation of the memory cell selected by the test address; and an identification information generation circuit configured to generate chip identification information based on the test address which is output by the self-diagnostic circuit. | 03-13-2014 |