Patent application number | Description | Published |
20080211350 | PIEZOELECTRIC RESONATOR ELEMENT AND PIEZOELECTRIC DEVICE - A piezoelectric resonator element includes: a base in a predetermined length, the base being made of a piezoelectric material; a plurality of resonating arms extending from a first end of the base; a joining part connected to a second end apart from the first end of the base by a predetermined distance; a connecting part connected to the joining part and extending in a width direction of the piezoelectric resonator element; a supporting arm connected to the connecting part and extending in a same direction as the resonating arm at an outer side of the plurality of resonating arms. A ratio L | 09-04-2008 |
20080297008 | TUNING FORK RESONATOR ELEMENT AND TURNING FORK RESONATOR - A tuning fork resonator element that has a base portion, first and second resonating arms extending from the base portion in a first direction, and a support frame sandwiching the first and second resonating arms and being connected to the base portion includes: a first excitation electrode, formed in an area close to a connection portion with the base portion of the support frame, being connected to a mount electrode with a conductive adhesive; a second excitation electrode, formed in at least one of an area sandwiching the first and second resonating arms of the support frame and an area positioned farther than the first and second resonating arms in the first direction, being connected to a mount electrode with the conductive adhesive; and a cut portion of the support frame formed on an external surface of the support frame. | 12-04-2008 |
20090218917 | PIEZOELECTRIC VIBRATION ELEMENT AND PIEZOELECTRIC DEVICE - A piezoelectric vibration element having a favorable drive level characteristic for miniaturization, and a piezoelectric oscillator. The piezoelectric vibration element includes a base made of a piezoelectric material, a plurality of vibration arms extended from the base, a long groove formed along a longitudinal direction of a main surface of each of the plurality of vibration arms, and an exciting electrode provided inside the long groove. A center position in a width dimension of the long groove is decentered in a minus X-axis direction from a center position of an arm width dimension. | 09-03-2009 |
20100269320 | TUNING FORK RESONATOR ELEMENT AND TUNING FORK RESONATOR - A tuning fork resonator element that has a base portion, first and second resonating arms extending from the base portion in a first direction, and a support frame sandwiching the first and second resonating arms and being connected to the base portion includes: a first excitation electrode, formed in an area close to a connection portion with the base portion of the support frame, being connected to a mount electrode with a conductive adhesive; a second excitation electrode, formed in at least one of an area sandwiching the first and second resonating arms of the support frame and an area positioned farther than the first and second resonating arms in the first direction, being connected to a mount electrode with the conductive adhesive; and a cut portion of the support frame formed on an external surface of the support frame. | 10-28-2010 |
20110227658 | RESONATOR ELEMENT, PIEZOELECTRIC DEVICE, AND ELECTRONIC DEVICE - A resonator element which can achieve a reduction in size while maintaining vibration characteristics, and a piezoelectric device and an electronic device, are to be provided. A quartz crystal resonator element has a base portion, a pair of arm portions extending from the base portion as a root, and a cut-out portion formed by reducing the width of the base portion in the width direction from each side of the arm portions. The root has a first root portion positioned on a side where the arm portions are opposed to each other, and a second root portion positioned on a side where the arm portions are not opposed to each other, and a relationship between a length A from the first root portion to the second root portion and a length B from the first root portion to an inner end portion of the cut-out portion is A≧B. | 09-22-2011 |
20110227659 | VIBRATOR ELEMENT, VIBRATOR, OSCILLATOR, AND ELECTRONIC APPARATUS - A quartz crystal vibrator element having the weight section is provided with the intermediate weight section formed to have an arm width W | 09-22-2011 |
20120223784 | VIBRATOR ELEMENT, VIBRATOR, OSCILLATOR, AND ELECTRONIC APPARATUS - A quartz crystal vibrator element having the weight section is provided with the intermediate weight section formed to have an arm width W | 09-06-2012 |
20140001921 | RESONATOR ELEMENT, PIEZOELECTRIC DEVICE, AND ELECTRONIC DEVICE | 01-02-2014 |
20140319975 | VIBRATOR ELEMENT, VIBRATOR, OSCILLATOR, AND ELECTRONIC APPARATUS - A quartz crystal vibrator element having the weight section is provided with the intermediate weight section formed to have an arm width W1 larger (thicker) than the arm width W of the vibrating arm section and smaller (thinner) than the arm width W2 of the tip weight section, thereby making the intermediate weight section follow the vibration (the amplitude) of the vibrating arm section. Further, the tip weight section formed to have an arm width W2 larger (thicker) than the arm width W1 of the intermediate weight section is provided, thereby making the tip weight section follow the vibration (the amplitude) of the vibrating arm section and the intermediate weight section. Therefore, the vibration characteristics of the vibrating arm section can be stabilized. | 10-30-2014 |