Patent application number | Description | Published |
20080238264 | Multi-Layer Piezoelectric Element and Method for Manufacturing the Same - The multi-layer piezoelectric element comprises a stack having an active portion constituted from at least one piezoelectric layer and a plurality of internal electrodes consisting of first and second internal electrodes placed one on another, the active portion being subjected to expansion and contraction in response to a voltage applied across the first internal electrode and the second internal electrode, and external electrodes formed on two side faces of the stack with one thereof being connected to the first internal electrode and the other connected to the second internal electrode, wherein each of the external electrodes is constituted from three or more layers including a first layer formed in contact with the side face of the stack and a second layer formed on the first layer, to provide a multi-layer piezoelectric element having high durability. | 10-02-2008 |
20090162706 | Method for Manufacturing Ceramic Member, and Ceramic Member, Gas Sensor Device, Fuel Cell Device, Multi-Layer Piezoelectric Device, Injection Apparatus and Fuel Injection System - A ceramic member in which the metal layers with high void ratio are sufficiently sintered to lower a residue of resin is produced. | 06-25-2009 |
20090220765 | Method for Manufacturing Ceramic Member, and Ceramic Member, Gas Sensor Device, Fuel Cell Device, Multi-Layer Piezoelectric Device, Injection Apparatus and Fuel Injection System - A ceramic member in which the metal layers with high void ratio are sufficiently sintered to lower a residue of resin is produced. | 09-03-2009 |
20090295256 | Multilayer Piezoelectric Element and Injector Using the Same - In a multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers are stacked alternately, the plurality of metal layers include a plurality of low-filled metal layers having a lower filling rate of metal composing the metal layers than oppositely disposed metal layers adjacent to each other in a stacking direction. In a multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers are stacked alternately, the plurality of metal layers include a plurality of thin metal layers having a smaller thickness than oppositely disposed metal layers adjacent to each other in a stacking direction. In a multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers composed mainly of an alloy are stacked alternately, the plurality of metal layers include a plurality of high-ratio metal layers having a higher ratio of a component constituting the alloy than oppositely disposed metal layers adjacent to each other in a stacking direction. | 12-03-2009 |
20100154747 | Laminated Piezoelectric Element, Ejection Device, Fuel Ejection System, and Method for Manufacturing Laminated Piezoelectric Element - Provided is a highly durable laminated piezoelectric element wherein a stress generated at a portion, i.e., the boundary between an active region and inactive region, is reduced. A method for manufacturing such laminated piezoelectric element is also provided. The laminated piezoelectric element has a laminated structure ( | 06-24-2010 |
Patent application number | Description | Published |
20130183187 | Method for Manufacturing Ceramic Member, and Ceramic Member, Gas Sensor Device, Fuel Cell Device, Multi-Layer Piezoelectric Device, Injection Apparatus and Fuel Injection System - A ceramic member in which the metal layers with high void ratio are sufficiently sintered to lower a residue of resin is produced. | 07-18-2013 |
20130284714 | HEATER AND GLOW PLUG PROVIDED WITH SAME - A heater includes: a resistor having a heat-generating portion; a lead joined to an end portion of the resistor; and an insulating base body covering the resistor and the lead, the lead being made to have a portion whose profile is narrowed toward a distal end on a heat-generating portion side of the lead, a joining portion of the resistor and the lead being a region where the resistor is spaced apart from the insulating base body through the lead as viewed in cross section perpendicular to an axial direction of the lead. | 10-31-2013 |
20140026858 | MULTI-LAYER PIEZOELECTRIC ELEMENT, AND PIEZOELECTRIC ACTUATOR, INJECTION DEVICE, AND FUEL INJECTION SYSTEM PROVIDED WITH SAME - There are provided a multi-layer piezoelectric element which is capable of suppression of occurrence of an imperfect area, suffers from no development of leakage current even with moisture intrusion, has long-term freedom from variations in displacement and can achieve stable driving, as well as to provide a piezoelectric actuator, an injection device, and a fuel injection system provided with the multi-layer piezoelectric element. A multi-layer piezoelectric element includes a stacked body in which piezoelectric layers and internal electrodes acting as positive and negative internal electrodes are laminated; an inorganic coating attached to a side surface of the stacked body where ends of both the positive internal electrodes and the negative internal electrodes are exposed; and metal particles composed predominantly of a metal element contained in the internal electrodes, the metal particles dispersed in the inorganic coating. | 01-30-2014 |
20140042145 | HEATER AND GLOW PLUG PROVIDED WITH SAME - The present invention is a heater including: a resistor including a heat-generating portion; a lead joined to an end portion of the resistor; and an insulating base covering the resistor and the lead. The heater includes a connection portion in which the resistor and the lead overlap each other in a direction perpendicular to an axial direction of the lead, and a boundary between the resistor and the lead has a curved shape when the connection portion is seen in a cross section perpendicular to the axial direction. | 02-13-2014 |
20140246417 | HEATER AND GLOW PLUG INCLUDING THE SAME - The present invention provides a heater including an insulating base made of ceramic, and an electrically conductive line embedded in the insulating base. The electrically conductive line contains electrically conductive grains and ceramic grains. The average grain size of the ceramic grains in the electrically conductive line is smaller than the average grain size of the ceramic grains in the insulating base. | 09-04-2014 |
Patent application number | Description | Published |
20130112839 | VIBRATION ISOLATION UNIT - To provide a vibration isolation unit capable of reducing the number of parts, man-hour and material cost, and suppressing the product cost. One side of a stopper rubber member continues to the outer edge of a diaphragm. Accordingly, because they can be vulcanizingly molded simultaneously, the number of parts can be reduced. Also, because the diaphragm is attached to an outer tube member, the stopper rubber member also can be fixed simultaneously, and therefore the man-hour can be reduced. Further, because one side of the stopper rubber member continues to the outer edge of the diaphragm, overlapping of them in an axial view can be avoided, and a rubber material can be used efficiently. Thus, the number of parts, man-hour and material cost can be reduced and the product cost of the overall vibration isolation unit can be suppressed. | 05-09-2013 |
20130146743 | LIQUID-SEALED VIBRATION ISOLATION DEVICE AND VIBRATION ISOLATION UNIT - A liquid-sealed vibration isolation device including: a cylindrical outer tube member; a boss member; a vibration isolation base body ; a diaphragm; a partition member; an orifice; a decompressing-cum-pouring hole allowing the liquid-sealed chamber to communicate with the outside; and a sealer sealing the decompressing-cum-pouring hole. In the liquid-sealed vibration isolation device, an annular attaching member is provided to which the diaphragm is vulcanizingly adhered on the inner peripheral side and which is formed into an annular shape when viewed in the axial direction and attached to the upper end side of the outer tube member, and the decompressing-cum-pouring hole is disposed in the annular attaching member. | 06-13-2013 |