| Patent Number |
Title Of Patent |
Date Issued |
| 7387373 |
Liquid ejecting head and liquid ejecting apparatus |
June 17, 2008 |
| A liquid ejecting head includes a flow passage formation section and a sealing section. The flow passage formation section includes a plurality of nozzle openings, ejecting liquid therefrom, a plurality of pressure generation parts, corresponding to the nozzle openings respectively, a |
| 7300142 |
Ink cartridge for ink-jet printing apparatus |
November 27, 2007 |
| An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. |
| 7229162 |
Liquid jet head |
June 12, 2007 |
| A liquid jet head and apparatus prevent an increase in the viscosity of liquid in the liquid path during long term storage. The recording head has a liquid path unit 1 with nozzle openings 8, pressure generation chambers 7, liquid reservoirs 9, and a diaphragm 5, and a head case 2 bo |
| 7102273 |
Piezoelectric element formation member incorporated in piezoelectric element formation unit, pie |
September 5, 2006 |
| First internal electrode layers and second internal electrode layers are alternately laminated in a substrate while sandwiching piezoelectric layers therebetween. The first internal electrode layers are exposed to at least a first end face of the substrate, and the second internal el |
| 7070263 |
Liquid jet head |
July 4, 2006 |
| A liquid jet head and apparatus prevent an increase in the viscosity of liquid in the liquid path during long term storage. The recording head has a liquid path unit 1 with nozzle openings 8, pressure generation chambers 7, liquid reservoirs 9, and a diaphragm 5, and a head case 2 bo |
| 7028377 |
Method of producing an ink jet recording head |
April 18, 2006 |
| A method of producing an ink jet recording head, which includes (1) fixing a passage unit in which a nozzle pate having a nozzle opening, a spacer forming a common ink chamber, and an elastic plate having a thick portion abutting against an end of a piezoelectric vibrating element are st |
| 7009327 |
Piezoelectric element formation member, method of manufacturing the same, piezoelectric actuator |
March 7, 2006 |
| First internal electrode layers and second internal electrode layers are alternately laminated in a substrate while sandwiching piezoelectric material layer therebetween. The first internal electrode layers are exposed to a first end face of the substrate, and the second internal ele |
| 6878609 |
Silicon wafer break pattern, silicon substrate, and method of generating silicon wafer break pat |
April 12, 2005 |
| In order to provide a silicon wafer break pattern that stabilizes the location and shape of the breaks at weak spots of the break pattern and that reduces waste, the through-holes of the break pattern is disposed along a scribe line, a first group of the through-holes are substantially |
| 6755515 |
Ink cartridge for ink-jet printing apparatus |
June 29, 2004 |
| An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Eac |
| 6749296 |
Ink jet recording apparatus |
June 15, 2004 |
| Grooves 21 are formed in the side of an ink supply needle 17 opposite a filter 19 in order to induce the movement of ink using capillary attraction, and so that the grooves 21 ensure that ink can flow along a path to a recording head regardless of whether an air bubble is present. |
| 6736491 |
Liquid jetting head and method of manufacturing the same |
May 18, 2004 |
| A fixing plate includes a first region and a second region. A vibrator assembly includes a plurality of piezoelectric vibrators, a drive electrode formed on each of the piezoelectric vibrators, and a common electrode formed commonly to the piezoelectric vibrators. The vibrator assemb |
| 6729002 |
Method of producing an ink jet recording head |
May 4, 2004 |
| A pressurizing chamber 1 is formed as a recess by half etching of a silicon single-crystal substrate 2. A nozzle communicating hole 6 through which the pressurizing chamber 1 is connected to a nozzle opening 5 is formed as a through hole which is smaller in width than the pressurizing ch |
| 6699552 |
Silicon wafer break pattern, silicon substrate |
March 2, 2004 |
| In order to provide a silicon wafer break pattern that stabilizes the location and shape of the breaks at weak spots of the break pattern and that reduces waste, the through-holes of the break pattern is disposed along a scribe line, a first group of the through-holes are substantially |
| 6695438 |
Liquid jetting head |
February 24, 2004 |
| A conductive supporting plate is laminated on an elastic film. The conductive supporting plate is partly removed to form an elastic region in which first island portions and second island portions are remained on the elastic film while being electrically insulated from each other. A head |
| 6626524 |
Ink jet recording head provided with a vibrator unit |
September 30, 2003 |
| In a vibrator unit, at least one piezoelectric vibrator is fixed on a base member in a cantilevered manner, such that a first region of the piezoelectric vibrator is fixed on a first face of the base member. A resin case is formed with a housing space extending through a first end fa |
| 6598962 |
Ink jet recording head |
July 29, 2003 |
| In a vibrator unit, a plurality of piezoelectric vibrators are arranged on a base member in a cantilevered manner. A case is formed with a housing space having a bonding area at which a first inner portion of the housing space and a first face of the base member are opposed with a gap. A |
| 6460981 |
Ink jet recording head having spacer with etched pressurizing chambers and ink supply ports |
October 8, 2002 |
| A pressurizing chamber 1 is formed as a recess by half etching of a silicon single-crystal substrate 2. A nozzle communicating hole 6 through which the pressurizing chamber 1 is connected to a nozzle opening 5 is formed as a through hole which is smaller in width than the pressurizing ch |
| 6386672 |
Ink jet type recording head |
May 14, 2002 |
| An ink jet recording head including a flow path unit having pressure generating chambers, a piezoelectric vibrator for pressurizing the pressure generating chambers, a semiconductor integrated circuit for supplying a drive signal to the piezoelectric vibrator, and a member for absorb |
| 6382778 |
Ink jet recording head and method of manufacturing the same |
May 7, 2002 |
| An ink jet recording head having a head body for ejecting ink and ink supply channels for introducing ink supplied from an ink tank to the head body is disclosed. The recording head inventively and uniquely includes a channel forming plate having grooves and a sealing plate fastened to t |
| 6382754 |
Ink jet printing device |
May 7, 2002 |
| An ink jet printing device supplies first and second signals to cause a pressure generating chamber to jet out ink droplets. A third signal is applied to the pressure generating chamber to effectively attenuate the kinetic energy of the meniscus and to hold the meniscus at a position |
| 6332671 |
Ink jet recording head and method of manufacturing the same |
December 25, 2001 |
| An ink jet recording head of the type in which a passage unit is formed as a layer structure made up of a passage forming plate and an elastic plate. The elastic plate is formed with a thick portion and a thin film portion. The thick portion bonded to the common ink chamber is used as a |
| 6296351 |
Ink jet recording head with narrowed reservoir ends |
October 2, 2001 |
| In order to ease the discharge of air bubbles stagnated in end portions of a reservoir in an ink jet recording head, the end portions of the reservoir are so formed that the widths thereof are substantially equal to the depths thereof. Air bubbles entered in those portions are drawn into |
| 6217159 |
Ink jet printing device |
April 17, 2001 |
| An ink jet printing device supplies first and second signals to cause a pressure generating chamber to jet out ink droplets. A third signal is applied to the pressure generating chamber to effectively attenuate the kinetic energy of the meniscus and to hold the meniscus at a position |
| 6139132 |
Ink jet recording head with nozzle communicating hole having smaller width than pressurizing cha |
October 31, 2000 |
| A pressurizing chamber 1 is formed as a recess by half etching of a silicon single-crystal substrate 2. A nozzle communicating hole 6 through which the pressurizing chamber 1 is connected to a nozzle opening 5 is formed as a through hole which is smaller in width than the pressurizing ch |
| 6048053 |
Ink jet recording head including a spacing member for defining a gap between a fixed board and a |
April 11, 2000 |
| An ink jet recording head having high printing quality which is achieved independently of ambient temperature changes. An overhang portion (22) is formed on a surface of a frame (20) in such a manner that the overhang portion extends close to an island portion (9) of a resilient plate. A |
| 5710584 |
Ink jet recording head utilizing a vibration plate having diaphragm portions and thick wall port |
January 20, 1998 |
| An ink jet recording head formed by laminating and fixing: a flow path forming plate having through holes for defining pressure producing chambers, ink supply inlets, and a common ink chamber, a nozzle plate having nozzle openings communicating with the pressure producing chambers, a |
| 5548314 |
Ink jet recording head |
August 20, 1996 |
| An ink jet recording head for ejecting ink drops by expanding or shrinking a pressure generation chamber of an ink flow route forming member consisting of nozzle openings, the pressure generation chamber, an ink supply port, and a reservoir. Piezoelectric vibrators are disposed and f |
| 5157420 |
Ink jet recording head having reduced manufacturing steps |
October 20, 1992 |
| An inkjet recording head having a head substrate (1); at least a group of pressure chambers (2) arranged so as to be recessed over an entire surface of the head substrate; ink ejecting nozzles (7), each of which is opened so as to face a surface opposite to that of the substrate by exten |
