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    • 61. 发明授权
    • Piezoelectric/electrostrictive device
    • 压电/电致伸缩器件
    • US06333681B1
    • 2001-12-25
    • US09491171
    • 2000-01-25
    • Yukihisa TakeuchiTsutomu NanatakiMasato KomazawaKoji Kimura
    • Yukihisa TakeuchiTsutomu NanatakiMasato KomazawaKoji Kimura
    • H01L4108
    • H01L41/43H01L41/0946
    • A piezoelectric/electrostrictive device is disclosed comprising a driving portion to be driven by a displacement of a piezoelectric/electrostrictive element, a movable portion to be operated by a drive of the driving portion, a fixing portion for holding the driving portion and the movable portion, the movable portion being coupled with the fixing portion via the driving portion, and a hole formed by inner walls of the driving portion, an inner wall of the movable portion, and an inner wall of the fixing portion. The driving portion comprises a pair of mutually opposing thin plate portions, and a piezoelectric/electrostrictive element including a piezoelectric/electrostrictive operating portion comprising at least a pair or more of electrodes and a piezoelectric/electrostrictive layer formed on at least a part of the outer surface of at least one thin plate portion out of the thin plate portions, one end of the piezoelectric/electrostrictive operating portion in a direction in which the fixing portion is connected with the movable portion exists on the fixing portion or the movable portion, and the other end of the piezoelectric/electrostrictive operating portion is arranged on the thin plate portion, and at least a piezoelectric/electrostrictive layer of the piezoelectric/electrostrictive element exists extending over the movable portion and the fixing portion. The device of the present invention, having high rigidity in the width direction of the thin plate portions, namely in the Y-axis direction, enables rigid joining when functional parts such as sensors, magnetic heads, or the like are fixed to the present device, and further when the present device per se is fixed to another structure.
    • 公开了一种压电/电致伸缩器件,其包括驱动部分,该驱动部分由压电/电致伸缩元件的位移驱动,通过驱动部分的驱动而操作的可动部分,用于保持驱动部分和可动部分的固定部分 所述可移动部分经由所述驱动部分与所述固定部分联接,以及由所述驱动部分的内壁,所述可移动部分的内壁和所述固定部分的内壁形成的孔。 驱动部分包括一对相互相对的薄板部分,以及包括压电/电致伸缩操作部分的压电/电致伸缩元件,所述压电/电致伸缩操作部分包括至少一对或多个电极和形成在外部的至少一部分上的压电/电致伸缩层 至少一个薄板部分的表面在薄板部分之外,压电/电致伸缩操作部分的固定部分与可动部分连接的方向的一端存在于固定部分或可移动部分上,并且 压电/电致伸缩操作部分的另一端设置在薄板部分上,至少压电/电致伸缩元件的压电/电致伸缩层存在于可移动部分和固定部分上方延伸。 本发明的薄板部的宽度方向的刚性即Y轴方向的本发明的装置能够在诸如传感器,磁头等的功能部件固定在本装置上时进行刚性接合 并且当本装置本身固定到另一结构时。
    • 62. 发明授权
    • Piezoelectric/electrostrictive film element
    • 压电/电致伸缩膜元件
    • US06217979B1
    • 2001-04-17
    • US09085853
    • 1998-05-27
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • C04B3700
    • C04B35/486C04B35/4885C04B35/6264C04B2235/3225C04B2235/6025H01L41/0973H01L41/314H04R17/08Y10T428/24273Y10T428/24322Y10T428/24331
    • A method of producing a piezoelectric/electrostrictive film element is disclosed. The film element includes a zirconia substrate having a window which is closed by a diaphragm portion, and a piezoelectric or electrostrictive unit formed on the substrate and including a piezoelectric or electrostrictive layer between upper and lower electrodes. The method comprises the steps of: (a) preparing the substrate which has been sintered and in which at least the diaphragm portion contains alumina in an amount of 1.1-5.0 parts by weight; (b) forming, by a film-forming process, the lower electrode on the diaphragm portion, and the piezoelectric/electrostrictive layer on the lower electrode by using a piezoelectric/electrostrictive material which contains magnesia or a component which gives magnesia, in an independent form or in a compound form; and (c) firing the piezoelectric/electrostrictive layer, so as to deposit particles consisting principally of a compound of alumina and magnesia at least on an interface between the diaphragm portion and the lower electrode, the interface being located right under the piezoelectric/electrostrictive layer.
    • 公开了制造压电/电致伸缩薄膜元件的方法。 薄膜元件包括具有由隔膜部分封闭的窗口的氧化锆基板,以及形成在基板上并且在上部和下部电极之间包括压电或电致伸缩层的压电或电致伸缩单元。 该方法包括以下步骤:(a)制备已经烧结的衬底,其中至少隔膜部分含有1.1-5.0重量份的氧化铝; (b)通过使用含有氧化镁或氧化镁的成分的压电/电致伸缩材料,通过成膜工艺在隔膜部分上形成下电极和下电极上的压电/电致伸缩层,在独立的 形式或复合形式; 和(c)对压电/电致伸缩层进行烧制,至少在隔膜部分和下电极之间的界面上沉积主要由氧化铝和氧化镁组成的颗粒,界面位于压电/电致伸缩层的正下方 。
    • 66. 发明授权
    • Optical switch
    • 光开关
    • US06842550B2
    • 2005-01-11
    • US10027775
    • 2001-12-20
    • Yukihisa TakeuchiTsutomu NanatakiKoji Kimura
    • Yukihisa TakeuchiTsutomu NanatakiKoji Kimura
    • G02B6/35G02B6/43
    • G02B6/3522G02B6/3512G02B6/3556G02B6/3578G02B6/3582G02B6/43
    • An optical switch comprises a light transmission portion, an optical path-changing portion, an actuator portion and light transmission channels; said light transmission portion having a light reflecting plane provided on one part of a plane facing the changing portion to totally reflect light; said optical path-changing portion being provided in proximity to the light reflecting plane and having an optical path-changing member for reflecting or scattering light; said actuator portion having a mechanism being displaced and transmitting displacement to the optical path changing portion; and said light transmission channels having optical wave guiding bodies and being provided in three directions with the light reflecting plane as a starting point. Switching or dividing of an optical path is conducted by contacting or separating the optical path-changing portion to or from the light reflecting plane by displacement of the actuator portion.
    • 光开关包括光传输部分,光路改变部分,致动器部分和光传输通道; 所述光传输部分具有设置在面对所述改变部分的平面的一部分上以全反射光的光反射面; 所述光路改变部分设置在光反射面附近并具有用于反射或散射光的光路改变部件; 所述致动器部分具有位移并将位移传递到光路改变部分的机构; 并且所述光传输通道具有光波导体并且以三个方向设置有光反射面作为起点。 通过使致动器部分的位移与光反射面接触或分离光路改变部分来进行光路的切换或分割。