Abstract: A polygonal coil having a substantially square shape is manufactured by winding a conductive wire in the diameter direction of the core on the core in an overlapping manner by the use of a winding jig in which a first collar portion and a second collar portion are disposed at both ends of a core so as to be opposed to each other and four rod-shaped protrusions are disposed on a surface of the first collar portion opposed to the second collar portion so as to protrude in a radial shape centered on an end of the core,. As a result, it is possible to obtain a polygonal coil with high precision.

Abstract: Disclosed is a liquid ejecting recording head with improved operational reliability. A first coating resin layer of a liquid ejecting recording head, having a liquid flow duct and a liquid ejecting orifice, is formed of an oxetane resin composition that contains, as necessary components, an oxetane compound having at least one oxetanyl group in a molecule, and a cationic photopolymerization initiator.

Abstract: The present invention fixes a nozzle sheet on a substrate with a predetermined material (5,6), which has an excellent chemical resistance and sufficient adhesiveness, or more specifically, fixes the nozzle sheet on the substrate with cyclized rubber or with patternable, adhesive elastic material. Moreover, the present invention forms walls for liquid chambers and liquid channels with polyimide.

Abstract: A polygonal coil having a substantially square shape is manufactured by winding a conductive wire in the diameter direction of the core on the core in an overlapping manner by the use of a winding jig in which a first collar portion and a second collar portion are disposed at both ends of a core so as to be opposed to each other and four rod-shaped protrusions are disposed on a surface of the first collar portion opposed to the second collar portion so as to protrude in a radial shape centered on an end of the core. As a result, it is possible to obtain a polygonal coil with high precision.

Abstract: There is provided a head including a chip 10 that has a semiconductor substrate 11, heating elements 12 disposed on the semiconductor substrate 11, coating layers 14 disposed on the semiconductor substrate 11 and having nozzles 14a arranged in regions above the respective heating elements 12, and individual channels 14b each communicating with the outside and the region above the corresponding heating element 12, wherein the semiconductor substrate 11 does not have a through hole communicating with each individual channel 14b; a ink feed member 21 having a common channel 21b, the ink feed member 21 being bonded to the chip 10 in such a manner that the common channel 21b communicates with the individual channels 14b; and a top 22 disposed on the chip 10 and the ink feed member 21 so as to seal the opening of the common channel 21b.

Abstract: A liquid discharge recording head which discharges a liquid includes a substrate on which liquid-discharge-energy-generating elements are provided and which constitutes a part of a flow path for supplying the liquid; and a covering resin layer which is provided on the substrate, which constitutes a part of the flow path, and which includes orifices for discharging the liquid, wherein the covering resin layer is composed of an oxetane resin composition containing an oxetane compound having at least one oxetanyl group in its molecule and a photocationic polymerization initiator as essential components.

Abstract: In a method and an apparatus for ejecting liquid, the processing accuracy of an ejection unit for ejecting ink can be easily increased and the variations in the volume of ink drops, the ejection angle thereof, etc., can be reduced even when dust is mixed in ink. In addition, a reduction in an ink-supply speed at which ink is supplied to an ink ejection unit can be prevented. An ink ejection apparatus includes a plurality of heating units (13) provided on a base member (11), ink cells for pressurizing ink with energy generated by the heating units (13), and nozzles (17) having ejection holes for ejecting the ink which is pressurized in the ink cells. Each of the nozzles (17) is disposed above each of the heating units (13).

Abstract: A print head manufacturing method in which satisfactory precision can be obtained by simple processes are provided. Projecting objects having a predetermined shape are formed on a substrate, and a setting resin is applied on the substrate and is set. Then, the projecting objects are removed so that ink cells and nozzles are formed. The thickness of the setting resin is determined such that tip portions of the projecting objects project above the setting resin and ink cells can be formed.

Abstract: Disclosed is a liquid ejecting recording head with improved operational reliability. A first coating resin layer of a liquid ejecting recording head, having a liquid flow duct and a liquid ejecting orifice, is formed of an oxetane resin composition that contains, as necessary components, an oxetane compound having at least one oxetanyl group in a molecule, and a cationic photopolymerization initiator.

Abstract: Disclosed is a liquid ejecting recording head with improved operational reliability. There is provided a flow duct forming material for a liquid ejecting recording head, which includes an oxetane resin composition that contains, as necessary components, an oxetane compound having at least one oxetanyl group in a molecule, and a cationic photopolymerization initiator.

Abstract: A liquid discharge apparatus has liquid chambers and nozzles that discharge droplets of liquids contained in the liquid chambers through liquid channels. The liquid discharge apparatus includes a substrate provided with partitions on one face thereof, the liquid chambers and the liquid channels being defined between the partitions. The liquid discharge apparatus further includes a nozzle sheet provided with adhesion-improving layers at least at positions corresponding to the top faces of the partitions and the nozzles for discharging liquid, the nozzle sheet and the top faces of the respective partitions being bonded to each other with the adhesion-improving layers. The liquid discharge apparatus also includes driving elements provided on the face of the substrate at positions corresponding to the liquid chambers, for changing the pressure of the liquid chambers. The liquid discharge apparatus is used as a printer head for ink jet printing.

Abstract: In a method and an apparatus for ejecting liquid, the processing accuracy of an ejection unit for ejecting ink can be easily increased and the variations in the volume of ink drops, the ejection angle thereof, etc., can be reduced even when dust is mixed in ink. In addition, a reduction in an ink-supply speed at which ink is supplied to an ink ejection unit can be prevented. An ink ejection apparatus includes a plurality of heating units (13) provided on a base member (11), ink cells for pressurizing ink with energy generated by the heating units (13), and nozzles (17) having ejection holes for ejecting the ink which is pressurized in the ink cells. Each of the nozzles (17) is disposed above each of the heating units (13).

Abstract: The present invention fixes a nozzle sheet on a substrate with a predetermined material (5, 6), which has an excellent chemical resistance and sufficient adhesiveness, or more specifically, fixes the nozzle sheet on the substrate with cyclized rubber or with patternable, adhesive elastic material. Moreover, the present invention forms walls for liquid chambers and liquid channels with polyimide.

Abstract: A liquid discharge head includes: a plurality of energy generating elements arranged in one direction on a substrate; a coating layer formed on the substrate and having formed therein a plurality of discharge ports opposed to the energy generating elements; and an individual passage formed on the substrate and extending in a direction orthogonal to a direction in which the energy generating elements are arranged. The coating layer on the individual passage has an opening formed therein.

Abstract: A liquid discharge apparatus has liquid chambers and nozzles that discharge droplets of liquids contained in the liquid chambers through liquid channels. The liquid discharge apparatus includes a substrate provided with partitions on one face thereof, the liquid chambers and the liquid channels being defined between the partitions. The liquid discharge apparatus further includes a nozzle sheet provided with adhesion-improving layers at least at positions corresponding to the top faces of the partitions and the nozzles for discharging liquid, the nozzle sheet and the top faces of the respective partitions being bonded to each other with the adhesion-improving layers. The liquid discharge apparatus also includes driving elements provided on the face of the substrate at positions corresponding to the liquid chambers, for changing the pressure of the liquid chambers. The liquid discharge apparatus is used as a printer head for ink jet printing.

Abstract: A clamp 1 comprises a band 3, a buckle 5 having a support surface 18 against which a long component wound by the band is held, and a clip 6 extending from the buckle 5 and secured to, e.g., a body panel. The buckle 5 comprises a pawl 15 for engaging ratchet teeth 17 on the band, a first guide 25 and a second guide 26 forming an insertion passage 19 for guiding the band 3 and restraining the band 3 inside the insertion passage 19. The second guide 26 is formed in a shape by which the rear portion 30 of the insertion passage 19 including the outlet is parallel to the support surface 18, and the first guide 25 is formed in a shape by which the front portion 31 of the insertion passage 19 including the inlet is connected to the rear portion 30 at an acute angle of inclination 29 with respect to the rear portion 30.

Abstract: A liquid discharge apparatus has liquid chambers and nozzles that discharge droplets of liquids contained in the liquid chambers through liquid channels. The liquid discharge apparatus includes a substrate provided with partitions on one face thereof, the liquid chambers and the liquid channels being defined between the partitions. The liquid discharge apparatus further includes a nozzle sheet provided with adhesion-improving layers at least at positions corresponding to the top faces of the partitions and the nozzles for discharging liquid, the nozzle sheet and the top faces of the respective partitions being bonded to each other with the adhesion-improving layers. The liquid discharge apparatus also includes driving elements provided on the face of the substrate at positions corresponding to the liquid chambers, for changing the pressure of the liquid chambers. The liquid discharge apparatus is used as a printer head for ink jet printing.

Abstract: A liquid discharge apparatus has liquid chambers and nozzles that discharge droplets of liquids contained in the liquid chambers through liquid channels. The liquid discharge apparatus includes a substrate provided with partitions on one face thereof, the liquid chambers and the liquid channels being defined between the partitions. The liquid discharge apparatus further includes a nozzle sheet provided with adhesion-improving layers at least at positions corresponding to the top faces of the partitions and the nozzles for discharging liquid, the nozzle sheet and the top faces of the respective partitions being bonded to each other with the adhesion-improving layers. The liquid discharge apparatus also includes driving elements provided on the face of the substrate at positions corresponding to the liquid chambers, for changing the pressure of the liquid chambers. The liquid discharge apparatus is used as a printer head for ink jet printing.

Abstract: A liquid discharge apparatus has liquid chambers and nozzles that discharge droplets of liquids contained in the liquid chambers through liquid channels. The liquid discharge apparatus includes a substrate provided with partitions on one face thereof, the liquid chambers and the liquid channels being defined between the partitions. The liquid discharge apparatus further includes a nozzle sheet provided with adhesion-improving layers at least at positions corresponding to the top faces of the partitions and the nozzles for discharging liquid, the nozzle sheet and the top faces of the respective partitions being bonded to each other with the adhesion-improving layers. The liquid discharge apparatus also includes driving elements provided on the face of the substrate at positions corresponding to the liquid chambers, for changing the pressure of the liquid chambers. The liquid discharge apparatus is used as a printer head for ink jet printing.

Abstract: A liquid discharge apparatus has liquid chambers and nozzles that discharge droplets of liquids contained in the liquid chambers through liquid channels. The liquid discharge apparatus includes a substrate provided with partitions on one face thereof, the liquid chambers and the liquid channels being defined between the partitions. The liquid discharge apparatus further includes a nozzle sheet provided with adhesion-improving layers at least at positions corresponding to the top faces of the partitions and the nozzles for discharging liquid, the nozzle sheet and the top faces of the respective partitions being bonded to each other with the adhesion-improving layers. The liquid discharge apparatus also includes driving elements provided on the face of the substrate at positions corresponding to the liquid chambers, for changing the pressure of the liquid chambers. The liquid discharge apparatus is used as a printer head for ink jet printing.