Patent application number | Description | Published |
20090002453 | INK JET HEAD AND PRODUCTION PROCESS THEREOF - An ink jet head is constituted by a recording element substrate comprising an energy generating element; and an electric wiring member on which a plurality of flying leads electrically connected to said recording element substrate by thermocompression bonding through gang bonding is arranged in parallel. The ink jet head further includes a plurality of thermocompression bonding portions, formed on the plurality of flying leads by the thermocompression bonding, including thermocompression bonding portions formed on at least both end flying leads with respect to an arrangement direction of the plurality of flying leads. The thermocompression bonding portions formed on the above-described at least both end flying leads are offset toward a center of the plurality of flying leads with respect to the arrangement direction. | 01-01-2009 |
20090309923 | PRINTING HEAD - There is provided a printing head, enabling to suppress the occurrence of cracks in a printing element substrate, even if the printing head is erroneously fallen. The printing head comprises: a printing element substrate, an ink flow passage and a sheet-shaped portion comprising a rectangular major surface. A rear surface side of the major surface of the sheet-shaped portion is provided with a space formed separately from the ink flow passage. A surface adjacent to the major surface is provided with an opening of the space formed therein, and wherein the sheet-shaped portion is provided with a concave portion formed on the rear surface side of two regions between the printing element substrate and two corner portions arranged proximate to the opening in the major surface. | 12-17-2009 |
20090309926 | PRINTING HEAD - There is provided a printing head in which a printing element substrate is hard to be deformed even if the printing head falls by mistake. The printing head comprises an element substrate in which an energy generating element for generating energy used for ejecting ink is provided, a first sheet-shaped portion to which the element substrate is provided, a second sheet-shaped portion provided away from the first sheet-shaped portion at an opposite side to a direction of ejecting the ink in relation to the first sheet-shaped portion, and a sheet-shaped wall member connecting the first sheet-shaped portion to the second sheet-shaped portion, wherein the wall member has a thickness of a portion connected to the second sheet-shaped portion, which is larger than a thickness of a portion connected to the first sheet-shaped portion. | 12-17-2009 |
20090309927 | INKJET PRINTING HEAD - The present invention provides an inkjet printing head which is not deteriorated in printing quality or broken in production processes. For this purpose, a rib capable of being displaced upon receiving an influence of stress resulting from a sealant is installed at a position opposing the long side face of a printing element substrate, and the sealant is used to seal between the ribs and the printing element substrate. | 12-17-2009 |
20110279550 | LIQUID JET HEAD AND METHOD FOR MANUFACTURING LIQUID JET HEAD - A liquid discharge head includes a recording element substrate including an energy generating element, a wiring substrate including wiring, a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, and a sealing member, wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion. | 11-17-2011 |
20130063523 | LIQUID RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - Provided is a liquid recording head in which a protective layer having resistance to liquid and an adhesiveness improving film are disposed on a second surface opposite to a first surface of a silicon substrate. The first surface and the second surface have a plane direction. The protective layer is disposed in a peripheral region of an opening of a liquid supply port. A liquid ejection chip is bonded to a head substrate with an adhesive so that the liquid supply port communicates to a liquid introduction port on a side of the second surface of the silicon substrate. | 03-14-2013 |
20130100208 | METHOD OF MANUFACTURING LIQUID EJECTION HEAD AND LIQUID EJECTION HEAD - A method of manufacturing a liquid ejection head includes: defining a first imaginary reference line along the longitudinal direction of a base member and measuring the distances between the first imaginary reference line and at least two liquid supply port portions of a liquid supply port row, including defining a second imaginary reference line passing the liquid supply port portion at the shortest distance from the first imaginary reference line and the liquid supply port portion at the longest distance from the first imaginary reference line respectively from among the at least two liquid supply port portions and defining the second imaginary reference line between two imaginary lines parallel to the first imaginary reference line. | 04-25-2013 |
20130139944 | METHOD OF MANUFACTURING LIQUID EJECTION HEAD - A liquid adhesive is applied onto a surface of a base plate having flow channels formed as recesses or through-grooves, by transferring the liquid adhesive from a rotating cylinder coated with it to the surface of the base plate. The base plate is then bonded to a cover plate having ejection energy generating elements via the applied adhesive to be made into a liquid ejection head. For evenly applying the liquid adhesive onto the surface having the recesses or through-grooves as flow channels, the surface is additionally provided with dummy recesses for compensating for variance of contact length orthogonal to the transfer direction due to uneven or asymmetrical arrangement of the recesses or through-grooves. | 06-06-2013 |
20130155151 | METHOD OF MANUFACTURING LIQUID EJECTION HEAD - A support substrate and a liquid ejecting element substrate are bonded to each other with an adhesive agent to manufacture a liquid ejection head. The support substrate is provided with a liquid supply port and a recess or through hole in its main surface. The adhesive agent is applied onto the main surface of the support substrate by means of a roller holding the adhesive agent on its peripheral surface by moving the support substrate and the roller relative to each other such that the recess or through hole and the liquid supply port sequentially face the roller in this order. | 06-20-2013 |
20140029229 | LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid ejection head includes two or more substrates disposed side by side, each having energy generating elements and primary terminals electrically connected to the respective energy generating elements, and an electrical wiring member having primary flying leads electrically connected to the respective primary terminals by means of gang bonding. Each of the substrates has an auxiliary terminal located adjacent to the primary terminals and the auxiliary terminals of the two or more substrates are disposed adjacent to each other. The electrical wiring member has an auxiliary flying lead connected to the auxiliary terminals of the substrates by means of a gang bonding system. | 01-30-2014 |
20140216630 | METHOD OF MANUFACTURING LIQUID DISCHARGE HEAD - A method of manufacturing a liquid discharge head in which a device substrate having an energy generating element and a supply port and a supporting member having a supply passage are bonded with each other an adhesive agent includes:
| 08-07-2014 |
20140218445 | METHOD OF MANUFACTURING LIQUID EJECTION HEAD, AND LIQUID EJECTION HEAD - There is provided a method of manufacturing a liquid ejection head that includes a supporting member having a major surface provided with a plurality of supply paths, and a recording element substrate having a bonding surface bonded to the major surface and provided with a plurality of supply ports arranged side by side in an arranging direction in which the supply paths are arranged side by side, the supply ports having smaller widths than the respective supply paths in the arranging direction. The method includes applying a bonding agent on the major surface around each of the supply paths, spreading the bonding agent to inner side surfaces of the supply ports by pressing boundary portions between the bonding surface and the supply ports into the bonding agent applied, and bonding the bonding surface to the major surface at a bonding position where the supply ports face the respective supply paths. | 08-07-2014 |
20140308093 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes a processing table to which a printed sheet is transported, a positioning member that positions the sheet, a cutter that cuts the positioned sheet into a binding margin portion and an image portion, and a taping unit that joins the binding margin portion and the image portion together with a tape in a state in which a gap is formed therebetween. | 10-16-2014 |