公开(公告)号：US20240065107A1

公开(公告)日：2024-02-22

申请号：US18271817

申请日：2022-09-08

申请人： NGK SPARK PLUG CO., LTD.

发明人： Yoshinobu HIROSE ,  Kentaro ICHIHASHI ,  Takashi KASASHIMA ,  Masato YAMAZAKI

IPC分类号： H10N30/853 ,  H10N30/87 ,  H10N30/50 ,  H10N30/097 ,  H10N30/08 ,  H10N30/067

CPC分类号： H10N30/8542 ,  H10N30/871 ,  H10N30/50 ,  H10N30/097 ,  H10N30/08 ,  H10N30/067

摘要： A piezoelectric element having a piezoelectric body and an electrode in contact with the piezoelectric body: the piezoelectric body being formed of a lead-free piezoelectric ceramic composition which includes a primary phase formed of an alkali niobate-based perovskite oxide represented by a compositional formula (A1aM1b)c(Nbd1Mnd2Tid3Zrd4Hfd5)O3+e (wherein element A1 represents at least one species among the alkali metals; element M1 represents at least one species among Ba, Ca, and Sr; the following conditions: 0

公开(公告)号：US20180045673A1

公开(公告)日：2018-02-15

申请号：US15670467

申请日：2017-08-07

申请人： NGK SPARK PLUG CO., LTD.

发明人： Mina SATO ,  Yoshinobu HIROSE ,  Akira SEIKE ,  Hisashi KOZUKA ,  Yasuyuki OKIMURA ,  Kazushige OHBAYASHI

IPC分类号： G01N27/407 ,  C01G53/00 ,  H05K1/09 ,  G01N27/30

CPC分类号： G01N27/4073 ,  C01G53/70 ,  C01P2002/34 ,  C01P2002/50 ,  C01P2006/40 ,  G01N27/301 ,  G01N27/4076 ,  H05K1/09 ,  H05K1/092 ,  H05K3/1291 ,  H05K2201/0326

摘要： A gas sensor including a conductive oxide sintered body, the sintered body including a crystal phase having a perovskite-type oxide crystal structure represented by a compositional formula: REaCubFecNidOx wherein RE represents a rare earth element, wherein the following conditions: a+b+c+d=1 and 1.25≦x≦1.75 are satisfied, and wherein a, b, c, and d satisfy the following conditions: 0.375≦a≦0.524; 0.050