| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 347053000 | Magnetic | 6 |
| 20100053275 | Nozzle With Magnetically Actuated Reciprocating Plunger - An inkjet drop ejection apparatus includes a chamber defined by a plunger spaced from an ejection nozzle; and an actuator for moving the plunger towards the nozzle, the actuator including a magnetic plate and a solenoid coil provided circumferentially between the magnetic plate and the plunger, the solenoid coil for inducing a magnetic field in at least one of the magnetic plate and the plunger. The plunger has defined therethrough a series of apertures arranged around a circumference of the plunger, the apertures substantially mapping a locus of the solenoid coil. | 03-04-2010 |
| 20090262164 | DEVELOPER SUPPLY DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A developer supply device, includes: a developer holder; and a developer reservoir which is disposed inside of the developer holder, holds a liquid developer, and has at least one supply section that supplies the liquid developer from the developer reservoir to the developer holder, the liquid developer including a toner and an aqueous medium, and the developer supply device supplying the liquid developer that has been supplied to the developer holder to a medium which is a supply target for the liquid developer. | 10-22-2009 |
| 20090185007 | PRINTHEAD WITH BACKFLOW RESISTANT NOZZLE CHAMBERS - A printhead that has an array of ink ejection nozzles, an array of chambers adapted to store ink for ejection through each of the nozzles respectively, a plurality of ink inlet channels for feeding ink the array of chambers, and a plurality of actuators, one of the actuators being positioned in each of the chambers respectively for ejecting drops of ink through the nozzle. A plurality elongate ink feed channels is connected to the ink inlet channels. Each of the ink inlet channels is long and narrow relative to the dimensions of the chamber such that ink in said chamber is restricted from flowing out during ink drop ejection by viscous drag generated by the ink inlet channel. This enhances the droplet ejection efficiency as less of the pressure pulse generated by the actuator is lost to ink back flow. | 07-23-2009 |
| 20090219343 | ACTUATOR, METHOD FOR MANUFACTURING ACTUATOR, DROPLET EJECTION DEVICE, DROPLET EJECTION HEAD AND PRINTER - An actuator includes a deformable substrate, a magnetic body having an opening, provided above the substrate, and a coil that is disposed above the substrate and surrounds the magnetic body. | 09-03-2009 |
| 20100208000 | PRINTHEAD WITH HIGH DRAG NOZZLE CHAMBER INLETS - A printhead that has an array of ink ejection nozzles, an array of chambers adapted to store ink for ejection through each of the nozzles respectively, a silicon substrate for supporting the array of chambers and defining a plurality of ink inlet channels for feeding ink to the array of chambers, the silicon substrate having a planar structure with one surface that supports the chambers and an opposing surface from which the elongate ink feed channels extend, a plurality of actuators, one of the actuators being positioned in each of the chambers respectively for ejecting drops of ink through the nozzle, a plurality of ink inlet channels connecting the ink feed channels to the array of chambers and, layers of CMOS drive circuitry supported on the silicon substrate. The ink inlet channels each extend through the layers of CMOS drive circuitry and each of the ink inlet channels being long and narrow relative to the dimensions of the nozzle such that ink in said chamber is restricted from flowing out during ink drop ejection by viscous drag generated by the ink inlet channel. | 08-19-2010 |
| 20100271432 | Nanoparticles, conductive ink and circuit line forming device - A circuit line forming device, including an inkjet head to eject a conductive ink onto one side of a substrate, the conductive ink containing nanoparticles including a ferromagnetic core and a conductive layer surrounding the ferromagnetic core; and a magnetic field generator part, positioned on the other side of the substrate in correspondence with the inkjet head, wherein the magnetic field generator part applies a magnetic field on the conductive ink, when the conductive ink is ejected to form circuit lines. | 10-28-2010 |
