Patent application number | Description | Published |
20080239004 | INK JET PRINT HEAD AND METHOD OF MANUFACTURING INK JET PRINT HEAD - An ink jet print head is provided which allows an ejection opening-formed surface to be cleaned well and can improve a precision with which ejected ink lands on a print medium. For this purpose, conductive layers of a conductive material are formed on the support substrate and planarized. The liquid ejection substrates are mounted on the support substrate with high precision, without a sealing agent, that protects electrical connecting portions on the liquid ejection substrates, protruding from the ejection opening-formed surface. | 10-02-2008 |
20090179965 | LIQUID EJECTION HEAD - A liquid ejection head is constituted by a liquid ejection substrate comprising a liquid supply port for supplying liquid, an ejection outlet for ejecting the liquid supplied from the liquid supply port, and ejection energy generating devices for generating energy for ejecting the liquid; and a supporting member having a supporting surface for supporting the liquid ejection substrate and a liquid supply hole for supplying liquid to the liquid ejection substrate, the liquid supply hole communicating with the liquid supply port of the liquid ejection substrate to form a communicating portion, a periphery of which is sealed by a sealant. The liquid supply hole of the supporting member has an opening larger than that of the liquid supply port of the liquid ejection substrate. The support member has an inner wall portion including an edge line portion defined by the liquid supply hole on a side where the liquid ejection substrate is to be disposed. The inner wall portion is covered with the sealant. | 07-16-2009 |
20090267994 | LIQUID DISCHARGE HEAD, INK JET RECORDING HEAD AND INK JET RECORDING APPARATUS - The invention provides an ink jet recording head, in which, for improving heat-dissipating property and electrode terminal connectivity and reducing production cost, second electrode terminals provided on a supporting surface of plural laminated sheets for supporting a liquid discharge substrate and to be connected with first electrode terminals of the liquid discharge substrate are provided outside an ink supply aperture formed in an outermost sheet constituting the supporting surface, and are supported by the outermost sheet and at least a sheet laminated thereunder. | 10-29-2009 |
20090309939 | LIQUID EJECTION HEAD, RECORDING APPARATUS HAVING THE SAME, AND RECORDING METHOD - A liquid ejection head includes at least one liquid ejecting substrate for ejecting liquid, a supporting member for supporting the at least one liquid ejecting substrate, the at least one liquid ejecting substrate being fixed to a main surface of the supporting member, and a plurality of liquid supplying members for supplying liquid to the at least one liquid ejecting substrate through the supporting member. A linear expansivity of each of the liquid supplying members is different from a linear expansivity of the supporting member. The plurality of the liquid supplying members are arranged along a longitudinal direction of the supporting member, with each of the liquid supplying members being bonded to a surface that is opposite the main surface of the supporting member. | 12-17-2009 |
20100013889 | INK JET PRINTING HEAD - There is inexpensively and simply provided a highly reliable printing head including a printing element substrate which is located with high positioning precision and therefore causes no occurrence of ink leak regardless of the printing head having a large printing width. An ink jet printing head comprising a plurality of printing element substrates in each of which a plurality of ejecting openings, printing elements and an ink supply opening, a support member and an ink supply member wherein the support member is formed of a first member and a second member and is integral with the first member so as to surround the first member and the support member and the ink supply member are bonded in such a manner that bonding faces of the first member and the second member, and the second member are not in contact with the opening. | 01-21-2010 |
20110211024 | RECORDING HEAD - A recording head includes: a recording element substrate having a plurality of discharge ports discharging a liquid and an energy generating element generating energy used to discharge the liquid from the discharge ports; an electrical wiring substrate having an opening portion in which the recording element substrate is provided and applies a driving signal to the recording element substrate; an electrical connection portion in which an electrode portion of the recording element substrate and an electrode portion of the electrical wiring substrate are electrically connected to each other by a wire; and a sealing material covering and sealing the electrical connection portion, wherein the electrical connection portion is provided with a reference member as a reference of at least one of an upper limit position and a lower limit position of the height of the surface of the sealing material with respect to thickness direction of the recording element substrate. | 09-01-2011 |
20110279545 | LIQUID DISCHARGE HEAD - A liquid discharge head includes a liquid discharge substrate having a discharge port array, and a channel member having a mounted face on which the liquid discharge substrate is mounted, channels for supplying liquid to the discharge port array, and a low thermal conductivity portion, wherein the channels includes an opening for flowing liquid, which is provided at a part except for both ends of the discharge port array, a first channel for passing the liquid, and a second channel for passing the liquid in a direction opposite to the liquid flowing direction in the first channel, wherein the opening, the first channel, the low thermal conductivity portion, and the second channel are provided in this order to be vertical to the mounted face, and the opening and the low thermal conductivity portion are provided to be at least partially overlapped one above the other. | 11-17-2011 |
20110279548 | LIQUID DISCHARGE HEAD AND ELECTRIC WIRING SUBSTRATE - A liquid discharge head includes a recording element substrate having a plurality of discharge ports for discharging liquid, and a plurality of recording elements for generating energy to discharge liquid, and an electric wiring substrate electrically connecting the recording element substrate and a driving circuit substrate having a circuit for driving the plurality of recording elements, the electric wiring substrate having a plurality of first electrical contact groups including a plurality of electrical contacts, for electrically connecting with the driving circuit substrate, provided along a disposed direction in which the plurality of discharge ports are disposed. The plurality of first electrical contact groups are detachably attached to a plurality of second electrical contact groups electrically connected with the driving circuit substrate, such that adjacent first electrical contact groups do not overlap each other in the disposed direction and in a direction orthogonal to the disposed direction. | 11-17-2011 |
20110279549 | LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS - A liquid discharge head includes a recording element substrate including a recording element that generates energy for discharging liquid from a discharge port, a base plate including a mounted surface on which the recording element substrate is mounted, an electric wiring substrate including a portion disposed on another surface of the base plate different from the mounted surface, adjacent to the mounted surface, and configured to be electrically connected to the recording element substrate, and an shield member having electric conductivity and configured to shield the portion. | 11-17-2011 |
20110279607 | LIQUID DISCHARGE HEAD, LIQUID DISCHARGE APPARATUS, AND LIQUID FILLING METHOD - A liquid discharge member includes discharge ports, and a first opening and a second opening that communicate with the discharge ports. A liquid supply member includes a first filter disposed in a gravitational direction and in a disposed direction, a first containing chamber containing the first filter, a second containing chamber containing the second filter, a first flow path connecting the first opening and the first containing chamber, and a second flow path connecting the second opening and the second containing chamber. The second filter and the first and the second flow path are disposed in an area between a surface perpendicular to the disposed direction and parallel to the gravitational direction and going through one end of the length of the first filter and a surface parallel to the first surface and going through the other end of the length of the first filter in the disposed direction. | 11-17-2011 |
20110310163 | LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING THE SAME - A liquid discharge head includes a recording element substrate including an energy generation element for generating energy used to discharge a liquid and a terminal electrically connected to the energy generation element, and an electric wiring board including an electrode electrically connected to the terminal via a wire to transmit an electric signal supplied from outside to the energy generation element, wherein the terminal has an area twice or more larger than a contact area between the terminal and the wire and the electrode has an area twice or more larger than a contact area between the electrode and the wire. | 12-22-2011 |
20120007926 | LIQUID DISCHARGE HEAD AND METHOD OF PRODUCING LIQUID DISCHARGE HEAD - A liquid discharge head includes an element substrate including an energy generating element; a supporting member adhesively supporting the element substrate; a sheet member adhesively bonded to the supporting member to adjoin the inner surface of an opening accommodating the element substrate in the sheet member and an end section of the element substrate; a wiring substrate bonded to the sheet member to adjoin the inner surface of an opening accommodating the element substrate in the wiring substrate and the end section of the element substrate and including a wire electrically connected to the energy generating element; and a sealant sealing a part electrical connecting the wiring substrate and element substrate, wherein the height of a wiring substrate surface opposite to that contacting the sheet member from supporting member is smaller than the element substrate surface opposite to that contacting the supporting member from the supporting member. | 01-12-2012 |
20120293588 | FLOW PASSAGE ASSEMBLY AND METHOD FOR MANUFACTURING FLOW PASSAGE ASSEMBLY, INKJET RECORDING HEAD, AND RECORDING APPARATUS - A method for manufacturing a flow passage assembly includes forming a first flow passage in a first joint interface formed by welding a first surface of a first flow passage forming member to a first surface of a second flow passage forming member using an ultrasonic welding process, and forming, after the first flow passage is formed, a second flow passage in a second joint interface formed by welding a first surface of a third flow passage forming member to one of a second surface of the first flow passage forming member and a second surface of the second flow passage forming member using an ultrasonic welding process. A total area of weld portions used when the first flow passage is formed is greater than a total area of weld portions used when the second flow passage is formed. | 11-22-2012 |
20130305533 | LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING THE SAME - A liquid discharge head includes a recording element substrate including an energy generation element for generating energy used to discharge a liquid and a terminal electrically connected to the energy generation element, and an electric wiring board including an electrode electrically connected to the terminal via a wire to transmit an electric signal supplied from outside to the energy generation element, wherein the terminal has an area twice or more larger than a contact area between the terminal and the wire and the electrode has an area twice or more larger than a contact area between the electrode and the wire. | 11-21-2013 |