| Patent Number |
Title Of Patent |
Date Issued |
| 7553003 |
Liquid-jet head and liquid-jet apparatus |
June 30, 2009 |
| A liquid-jet head, comprising: a nozzle plate having nozzle orifices bored therein; a passage-forming substrate provided with recesses including pressure generating chambers communicating with the nozzle orifices; piezoelectric elements provided on a surface of the passage-forming su |
| 7524038 |
Liquid-jet head and liquid-jet apparatus |
April 28, 2009 |
| An object of the present invention is to provide a liquid-jet head and a liquid-jet apparatus each capable of stabilizing liquid ejection characteristics in favorable states, and also capable of preventing destruction of a vibration plate. Disclosed is a liquid-jet head including a l |
| 7382083 |
Piezoelectric actuater unit, manufacturing method thereof, piezoelectric structural body, and li |
June 3, 2008 |
| The present invention is a piezoelectric actuator unit 29 having piezoelectric vibrators 33 vibrating in the lamination direction of electrode layers and piezoelectric material layers which are alternately laminated. The piezoelectric vibrators are arranged in one row in the directio |
| 7367654 |
Liquid ejecting apparatus and liquid ejecting method |
May 6, 2008 |
| The present apparatus includes: a liquid ejecting head having a nozzle plate with an ejecting hole through which a liquid is discharged, a conductive member disposed behind an object being processed opposite to the liquid ejecting head, a potential difference generating device for ge |
| 7364273 |
Liquid-jet head and liquid-jet apparatus |
April 29, 2008 |
| A liquid-jet head includes a passage-forming substrate. A plurality of pressure generating chambers communicate with nozzles. Piezoelectric elements each include a lower electrode, a piezoelectric layer and an upper electrode. Leads for the upper and lower electrodes are drawn out. I |
| 7288874 |
Piezoelectric actuator unit, manufacturing method thereof, piezoelectric structural body, and li |
October 30, 2007 |
| The present invention is a piezoelectric actuator unit 29 having piezoelectric vibrators 33 vibrating in the lamination direction of electrode layers and piezoelectric material layers which are alternately laminated. The piezoelectric vibrators are arranged in one row in the directio |
| 7239070 |
Liquid-jet head and liquid-jet apparatus |
July 3, 2007 |
| A liquid-jet head is provided. In the liquid-jet head, a lower electrode, as a common electrode common to a plurality of piezoelectric elements, is continuously formed as far as an outer region opposite the piezoelectric elements, an auxiliary electrode layer is provided which comprises |
| 7114798 |
Liquid ejecting apparatus |
October 3, 2006 |
| The piezoelectric vibrators 33 respectively have the active parts 33a capable of performing piezoelectric deformation joined to the elastic walls 26a forming one face of each of the pressure chambers 34 via the insular parts. On both sides of the active parts 33a in the vibrator widt |
| 7066584 |
Piezoelectric ink jet recording head formed by press working |
June 27, 2006 |
| An ink jet recording head has an ink passage unit formed by superposing a nozzle plate with a plurality of nozzles and an ink passage plate. The ink passage plate has a plurality of pressure producing chambers connected to the nozzles, and an ink reservoir communicating with the pres |
| 6952873 |
Piezoelectric ink jet recording head formed by press working |
October 11, 2005 |
| A manufacturing method for an ink jet recording head has an ink passage unit (1) formed by superposing a nozzle plate (3) with a plurality of nozzles (2) and an ink passage plate (8). The ink passage plate (8) has first and a second surface (8a, 8b), and is provided with a plurality of |
| 6886908 |
Liquid ejecting apparatus |
May 3, 2005 |
| The liquid ejecting apparatus includes: a liquid jet head including a nozzle opening through which a liquid drop is ejected by changing pressure of a liquid in a pressure chamber interconnecting to the nozzle opening; a scanning mechanism including a carriage on which the liquid jet head |
| 6802591 |
Liquid jet apparatus |
October 12, 2004 |
| This apparatus has a liquid jet head for ejecting liquid drops from nozzle openings of a nozzle plate, a scanning mechanism for scanning the head in the head scanning direction, a feed mechanism for feeding an object to be processed in the direction perpendicular to the head scanning dir |
| 6499836 |
Piezoelectric ink jet recording head formed by press working |
December 31, 2002 |
| An ink jet recording head has an ink passage unit (1) formed by superposing a nozzle plate (3) with a plurality of nozzles (2) and an ink passage plate (8). The ink passage plate (8) has first and a second surface (8a, 8b), and is provided with a plurality of pressure producing chambers |
| 6481834 |
Ink-jet recording head |
November 19, 2002 |
| A passage forming plate (1) is provided with a plurality of pressure chambers (5). A nozzle plate (2) is provided with nozzle holes (6). The nozzle plate (2) is disposed on the front surface (1a) of the passage forming plate (1) so that the nozzle holes (6) communicate with the press |
| 6478395 |
Liquid jetting apparatus |
November 12, 2002 |
| A liquid jetting apparatus of the invention includes a pressure chamber having an inside space whose volume is changeable, into which a liquid is supplied and which is communicated with a nozzle. A Helmholtz resonance frequency of the pressure chamber has a period of TH. A signal-generat |
