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Eiju
Eiju Hirai, Minamiminowa-Mura JP
| Patent application number | Description | Published |
|---|---|---|
| 20110090291 | LIQUID DROPLET EJECTING HEAD AND LIQUID DROPLET EJECTING APPARATUS - A liquid droplet ejecting head including a pressure chamber substrate that is provided with a pressure chamber communicating with a nozzle orifice, an oscillating plate formed over the pressure chamber at a first area surface; a plurality of first conductive layers formed over the oscillating plate which completely overlap and extend beyond the first area surface; a piezoelectric layer formed over the first conductive layers so as to overlap at least over the first area surface; and a second conductive layer, which is continuously formed so as to cover the piezoelectric layer and completely overlap and extend beyond the first area surface at extending portions, which extend in at least a part of an area between the first conductive layers adjacent to each other. | 04-21-2011 |
| 20110115855 | LIQUID DROPLET DISCHARGING HEAD AND LIQUID DROPLET DISCHARGING APPARATUS - A liquid droplet discharging head includes a pressure chamber substrate having a pressure chamber in communication with a nozzle hole. The pressure chamber has compartments adjacent to one another in a first direction. A vibrating plate has a first surface for covering the pressure chamber and a second, opposite, surface. The vibrating plate has a first area surface as a part of the first surface, the first area surface covering the pressure chamber in a view in a second direction that is orthogonal to the first direction and is normal to the first surface. A first conductive layer is formed at a plurality of areas to cover, in a view in the second direction. | 05-19-2011 |
| 20110122205 | ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - An actuator includes a vibration plate, a first conductive layer formed on an upper surface of the vibration plate and extending in a predetermined direction, a piezoelectric layer covering the first conductive layer, a second conductive layer formed on an upper surface of the piezoelectric layer, a metal layer formed on the upper surface of the vibration plate and on an upper surface of the second conductive layer, and an electrode electrically connected to the metal layer. The first conductive layer, the second conductive layer, and the piezoelectric layer interposed between the first and second conductive layers form a driving unit. A plurality of the driving units are disposed in a direction perpendicular to the predetermined direction. The metal layer intersects a plurality of the second conductive layers so as to be electrically connect the plurality of second conductive layers. | 05-26-2011 |
| 20110141200 | PIEZOELECTRIC DEVICE, PIEZOELECTRIC ACTUATOR, DROPLET EJECTING HEAD, AND DROPLET EJECTING APPARATUS - A piezoelectric device including: a first electrode layer provided so as to overlie a substrate; a second electrode layer disposed so as to face the first electrode layer; and a piezoelectric layer disposed between the first electrode layer and the second electrode layer. The first electrode layer has a conductive layer and a barrier layer. The barrier layer is provided between the conductive layer and the piezoelectric layer so as to prevent the conductive layer from contacting the piezoelectric layer. | 06-16-2011 |
| 20110148990 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A liquid ejecting head includes a flow channel forming substrate having pressure generation chambers communicating with a nozzle opening and arranged in parallel along a lateral direction. A piezoelectric element is provided on one surface of the flow channel forming substrate in correspondence to the pressure generation chamber, and has a first electrode, a piezoelectric layer provided on the first electrode and a second electrode provided on the piezoelectric layer. In a direction intersecting with the arrangement direction of the pressure generation chambers, in boundaries between an active section that is a substantial driving section and an inactive section that is not a substantial driving section of the piezoelectric layer, the first electrode includes a taper section of which a width is gradually decreased toward the boundary from the active section side. | 06-23-2011 |
Eiju Hirai, Fujimi-Machi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090213188 | METHOD OF MANUFACTURING AN ACTUATOR APPARATUS, A METHOD OF MANUFACTURING A LIQUID JET HEAD AND A LIQUID JET APPARATUS - A method of manufacturing an actuator apparatus includes forming, on the base plate, a test pattern that is electrically discontinuous with the electrodes of the piezoelectric element and has the same layer as the lower electrode, the test pattern having the lower electrode with the upper electrode and the piezoelectric material layer removed by etching, and measuring electric resistance of the lower electrode of the test pattern to acquire the etch amount of the lower electrode when the piezoelectric element is formed. | 08-27-2009 |
| 20100245491 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND ACTUATOR DEVICE - A liquid ejecting head includes a flow passage substrate having a pressure generation chamber in communication with a nozzle opening. A piezoelectric element includes first and second electrode and a piezoelectric substance layer and is positioned over one surface of the flow passage substrate. The piezoelectric element is deformed to form a convex toward the pressure generation chamber when the piezoelectric element is driven. A protection film formed from an inorganic material covers the piezoelectric element and has an opening through which an upper surface of the second electrode is exposed. An end of the opening in the protection film viewed in a direction of the length of the pressure generation chamber is located closer to the center than is an area at which the center of curvature of a curve of the piezoelectric element that forms near a wall around the pressure generation chamber during deformation operation. | 09-30-2010 |
Eiju Hirai, Nagano-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20090219345 | METHOD OF MANUFACTURING A LIQUID JET HEAD AND A LIQUID JET APPARATUS - A method of manufacturing a liquid jet head includes depositing a lower electrode film on a passage forming substrate and patterning the lower electrode film into a predetermined pattern, forming a piezoelectric layer on the passage forming substrate, forming an intermediate film made of a conductive material on the piezoelectric layer, forming a protective film on the intermediate film and, using the protective film as a mask, patterning by etching the piezoelectric layer together with the intermediate film into a predetermined pattern, peeling off the protective film, and depositing an upper electrode film on the passage forming substrate and patterning the upper electrode film into a predetermined pattern. | 09-03-2009 |
Eiju Hirai, Fujimi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090160906 | LIQUID JET HEAD, LINE TYPE LIQUID JET HEAD, PRINTER, LINE TYPE PRINTER AND FILM FORMING APPARATUS - A liquid jet head includes: a plurality of unit heads, wherein each of the unit heads has a nozzle forming region and a plurality of nozzle apertures arranged in a first direction in the nozzle forming region, the plurality of unit heads being laminated in a manner that the nozzle forming regions are shifted from one another in a second direction orthogonal to the first direction, wherein the unit heads are laminated in a third direction orthogonal to the first direction and the second direction, and liquid is ejected in a fourth direction between the second direction and the third direction. | 06-25-2009 |
Eiju Susuki, Cuyahoga Falls, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20100317818 | POLYMERS FUNCTIONALIZED WITH HALOSILANES CONTAINING AN AMINO GROUP - A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer, and reacting the reactive polymer with a halosilane compound containing an amino group. | 12-16-2010 |
Eiju Suzuki, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090124742 | Rubber Composition, Method for Producing Same and Tire - The present invention provides a rubber composition containing a rubber component (A) including a modified polymer having a protic amine structure, and an oxidizing agent (B), in which interaction between the rubber component and a carbon black is excellent and dispersibility of the carbon black is improved. This rubber composition enables to obtain a tire that is excellent in low heat generation, rupture property, and abrasion resistance and the like. Also provided are a method of efficiently producing such a rubber composition and a tire having the above-mentioned characteristics which is made of the rubber composition. | 05-14-2009 |
| 20090292043 | MODIFIED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITIONS AND TIRES - The present invention provides a modified conjugated diene polymer that is prepared by polymerization of a conjugated diene compound using a catalyst containing a lanthanoid rare earth element compound in an organic solvent and then modifying the resulting polymer having an active organic metal site with a modifier, wherein the modification efficiency is not less than 15% and the cis-1,4 bond content in the conjugated diene moiety measured by Fourier transform infrared spectroscopy satisfies the relationship (I): | 11-26-2009 |