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11. 发明授权

US5400488A Method of manufacturing a piezoelectric vibrator capable of reliably preventing dielectric breakdown 失效
标题翻译：制造能够可靠地防止绝缘击穿的压电振动器的制造方法
公开(公告)号：US5400488A
公开(公告)日：1995-03-28
申请号：US156280
申请日：1993-11-22
申请人： Tomeji Ohno , Tetsuo Yoshida , Yoshiaki Fuda
发明人： Tomeji Ohno , Tetsuo Yoshida , Yoshiaki Fuda
IPC分类号： H01L41/083 , H01L41/09 , H01L41/22
CPC分类号： H01L41/0906 , H01L41/0471 , H01L41/083 , H01L41/0926 , H01L41/094 , H01L41/273 , H03H9/02228 , H03H9/178 , Y10T29/42
摘要： On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes, formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes. Each first-set electrode has a first end along a side surface of the first piezoelectric sheet with each second-set and each third-set electrode possessed of a second and a third end along opposite side surfaces of the first and the second piezoelectric sheets. First and second common outside electrodes are formed on such side surfaces in contact with the first end of each first-set electrode either directly or through a first common electrode and in contact with the second and the third ends of the second-set and the third-set electrodes either directly or through second and third common electrodes.
摘要翻译：在压电振动器的第一压电片上，在第一压电片的上表面上形成第二压电片层叠在片之间的第一组电极之间。第二组电极形成在第二压电片的上表面上，每个电极位于两个相邻的第一组电极之间的中间。第二压电片从每个第二组电极到两个相邻的第一组电极的方向极化。优选地，第三组电极形成在第一压电片的下表面上，每个电极布置在两个相邻的第一组电极之间的中间。在这种情况下，第一压电片从每个第三组电极到两个相邻的第一组电极的方向极化。每个第一组电极具有沿着第一压电片的侧表面的第一端，每个第二组电极和每个第三组电极具有沿着第一和第二压电片的相对侧表面的第二和第三端。第一和第二公共外部电极形成在与第一组电极的第一端直接或通过第一公共电极接触并与第二组和第三组的第二和第三端接触的侧表面上直接或通过第二和第三公共电极设置电极。

12. 发明授权

US5315205A Piezoelectric vibrator capable of reliably preventing dielectric breakdown and a method of manufacturing the same 失效
标题翻译：能够可靠地防止绝缘击穿的压电振动器及其制造方法
公开(公告)号：US5315205A
公开(公告)日：1994-05-24
申请号：US946946
申请日：1992-09-17
申请人： Tomeji Ohno , Tetsuo Yoshida , Yoshiaki Fuda
发明人： Tomeji Ohno , Tetsuo Yoshida , Yoshiaki Fuda
IPC分类号： H01L41/083 , H01L41/09 , H01L41/04
CPC分类号： H01L41/0906 , H01L41/0471 , H01L41/083 , H01L41/0926 , H01L41/094 , H01L41/273 , H03H9/02228 , H03H9/178 , Y10T29/42
摘要： On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes (24(1), 24(2)) formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes. Each first-set electrode has a first end along a side surface of the first piezoelectric sheet with each second-set and each third-set electrode possessed of a second and a third end along opposite side surfaces of the first and the second piezoelectric sheets. First and second common outside electrodes are formed on such side surfaces in contact with the first end of each first-set electrode either directly or through a first common electrode and in contact with the second and the third ends of the second-set and the third-set electrodes either directly or through second and third common electrodes.
摘要翻译：在压电振动器的第一压电片上，在第一压电片的上表面上形成的第一组电极（24（1），24（2））之间，在片之间叠置第二压电片。第二组电极形成在第二压电片的上表面上，每个电极位于两个相邻的第一组电极之间的中间。第二压电片从每个第二组电极到两个相邻的第一组电极的方向极化。优选地，第三组电极形成在第一压电片的下表面上，每个电极布置在两个相邻的第一组电极之间的中间。在这种情况下，第一压电片从每个第三组电极到两个相邻的第一组电极的方向极化。每个第一组电极具有沿着第一压电片的侧表面的第一端，每个第二组电极和每个第三组电极具有沿着第一和第二压电片的相对侧表面的第二和第三端。第一和第二公共外部电极形成在与第一组电极的第一端直接或通过第一公共电极接触并与第二组和第三组的第二和第三端接触的侧表面上直接或通过第二和第三公共电极设置电极。

13. 发明授权

US4078938A Ceramic compositions having high dielectric constant 失效
标题翻译：具有高介电常数的陶瓷组合物
公开(公告)号：US4078938A
公开(公告)日：1978-03-14
申请号：US759095
申请日：1977-01-13
申请人： Masatomo Yonezawa , Tomeji Ohno
发明人： Masatomo Yonezawa , Tomeji Ohno
IPC分类号： C04B35/497 , H01G4/12 , C04B35/26
CPC分类号： H01G4/1254 , C04B35/497 , Y10T29/435
摘要： A ceramic composition allowing low-temperature sintering at a temperature below 1000.degree. C and having a high dielectric constant over 5000 essentially contains Pb(Fe 2/3 W 1/3)O.sub.3 and Pb(Fe 1/3 Nb 2/3)O.sub.3, in which the molecular ratio of Pb(Fe 2/3 W 1/3)O.sub.3 to Pb(Fe 1/3 Nb 2/3)O.sub.3 ranges from about 0.2 to 0.5.
摘要翻译：允许在低于1000℃的温度下低温烧结并具有超过5000的高介电常数的陶瓷组合物基本上含有Pb（Fe 2/3 W 1/3）O 3和Pb（Fe 1/3 Nb 2/3）O 3 ，其中Pb（Fe 2/3 W 1/3）O 3与Pb（Fe 1/3 Nb 2/3）O 3的分子比在约0.2至0.5的范围内。

14. 发明授权

US3963630A Lead zirconate-titanate powder of particle sizes between 0.02 and 0.2 micron, process for producing same, and high-density piezoelectric ceramics made of powder 失效
标题翻译：粒度在0.02〜0.2微米之间的锆钛酸铅粉末，其制造方法和由粉末制成的高密度压电陶瓷
公开(公告)号：US3963630A
公开(公告)日：1976-06-15
申请号：US547806
申请日：1975-02-07
申请人： Masatomo Yonezawa , Tomeji Ohno , Keizo Iwase , Toshio Takada , Masao Kiyama , Toshikazu Akita
发明人： Masatomo Yonezawa , Tomeji Ohno , Keizo Iwase , Toshio Takada , Masao Kiyama , Toshikazu Akita
IPC分类号： C04B35/626 , C01G23/00 , C01G25/00 , C01G45/00 , C04B35/49 , C04B35/493 , H01B3/12 , H01L41/187 , H01L41/39 , C04B35/46 , C04B35/48
CPC分类号： B82Y30/00 , C01G23/003 , C01G25/006 , C01G45/125 , C04B35/493 , H01L41/1875 , H01L41/1876 , C01P2002/34 , C01P2004/62 , C01P2004/64
摘要： Fine crystalline powder, from 0.02 to 0.2 micron in average particle size, of a composition Pb(Zr.Ti)O.sub.3. Parts of Zr and Ti of the composition may be substituted for with Mn and Sb, Nb, and/or Ta. The powder is produced by preparing an acidic aqueous solution of the constituent metallic ions, neutralizing the solution to provide a suspension of hydroxides of the metals, and subjecting the suspension to hydrothermal reaction at 150.degree.-300.degree.C. The powder provides piezoelectric ceramics of a high sintered density without resorting to hot pressing.
摘要翻译：组合物Pb（Zr.Ti）O 3的平均粒度为0.02至0.2微米的细晶体粉末。组成的Zr和Ti的一部分可以用Mn和Sb，Nb和/或Ta代替。通过制备组成金属离子的酸性水溶液来制备粉末，中和溶液以提供金属氢氧化物的悬浮液，并将该悬浮液在150-300℃下进行水热反应。该粉末提供压电陶瓷高烧结密度，而不用热压。

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