{
  "$type": "site.standard.document",
  "description": "There are provided a multi-layer piezoelectric element which is capable of suppressing separation of an external electrode plate, as well as a piezoelectric actuator, an injection device, and a fuel injection system that are provided with the multi-layer piezoelectric element. A multi-layer…",
  "path": "/patents/949227",
  "publishedAt": "2015-09-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/0603",
    "KYOCERA CORP [JP]"
  ],
  "textContent": "There are provided a multi-layer piezoelectric element which is capable of suppressing separation of an external electrode plate, as well as a piezoelectric actuator, an injection device, and a fuel injection system that are provided with the multi-layer piezoelectric element. A multi-layer piezoelectric element (1) of the invention includes a stacked body (4) composed of piezoelectric layers (2) and internal electrode layers (3) which are laminated; an external electrode plate (6) attached to a side face of the stacked body (4) via an electrically-conductive joining member (5); and a metal cover layer (7) being disposed on a surface of the external electrode plate (6), an area of the metal cover layer (7) corresponding to one end portion (4a) of the stacked body (4) in a stacking direction of the stacked body having a thick-walled portion (71) which is larger in thickness than an area of the metal cover layer corresponding to a midportion (4b) of the stacked body (4).",
  "title": "MULTILAYERED PIEZO ELEMENT, AS WELL AS PIEZO ACTUATOR, INJECTION APPARATUS, AND FUEL INJECTION SYSTEM PROVIDED WITH SAID ELEMENT"
}