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1. 发明申请

US20170141293A1 LEAD-FREE PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT USING THE SAME, AND METHOD OF MANUFACTURING LEAD-FREE PIEZOELECTRIC CERAMIC COMPOSITION 审中-公开
公开(公告)号：US20170141293A1
公开(公告)日：2017-05-18
申请号：US15129943
申请日：2015-03-05
申请人： NGK SPARK PLUG CO., LTD.
发明人： Hisashi KOZUKA , Hideto YAMADA , Takayuki MATSUOKA , Kazuaki KITAMURA , Masato YAMAZAKI , Toshiaki KURAHASHI , Takashi KASASHIMA , Yasuyuki OKIMURA , Kazushige OHBAYASHI
IPC分类号： H01L41/187 , C04B35/64 , C04B35/495 , H01L41/43 , H01L41/047
CPC分类号： H01L41/1873 , C04B35/495 , C04B35/64 , C04B2235/3201 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3225 , C04B2235/3232 , C04B2235/3244 , C04B2235/3255 , C04B2235/3262 , C04B2235/3267 , C04B2235/3272 , C04B2235/3277 , C04B2235/3279 , C04B2235/3284 , C04B2235/3286 , C04B2235/604 , C04B2235/768 , C04B2235/79 , C04B2235/80 , C04B2235/96 , H01L41/047 , H01L41/43
摘要： A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase is 0.40 direction with the main phase represented as a pseudo-cubic crystal system. Also, the area ratio of a crystal phase reflecting the second spots in the main phase is 33% or less, and the maximum grain size of crystals reflecting the second spots in the main phase is 25 nm or less.

2. 发明申请

US20160052826A1 UNLEADED PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT USING SAME, DEVICE, AND METHOD FOR MANUFACTURING UNLEADED PIEZOELECTRIC CERAMIC COMPOSITION 有权
标题翻译：不饱和压电陶瓷组合物，使用它们的压电元件，器件和制造未加压的压电陶瓷组合物的方法
公开(公告)号：US20160052826A1
公开(公告)日：2016-02-25
申请号：US14780235
申请日：2014-03-11
申请人： NGK SPARK PLUG CO., LTD.
发明人： Masato YAMAZAKI , Takayuki MATSUOKA , Kazuaki KITAMURA , Hisashi KOZUKA , Hideto YAMADA , Toshiaki KURAHASHI , Yasuyuki OKIMURA , Kazushige OHBAYASHI , Takashi KASASHIMA
IPC分类号： C04B35/495 , H01L41/047 , H01L41/113 , H01L41/09 , H01L41/187 , H01L41/08
CPC分类号： C04B35/495 , C04B2235/3201 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3232 , C04B2235/3234 , C04B2235/3236 , C04B2235/3244 , C04B2235/3251 , C04B2235/3262 , C04B2235/3272 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3293 , C04B2235/3294 , C04B2235/3418 , C04B2235/602 , C04B2235/768 , C04B2235/80 , G01L23/222 , H01L41/047 , H01L41/08 , H01L41/09 , H01L41/1132 , H01L41/187 , H01L41/1873 , H01L41/43 , H03H9/02031
摘要： A lead-free piezoelectric ceramic composition includes a first crystal phase made of an alkali niobate/tantalate type perovskite oxide having piezoelectric properties, and a second crystal phase made of an M-Ti—O spinel compound (where the element M is a monovalent to quadrivalent element).
摘要翻译：无铅压电陶瓷组合物包括由具有压电性质的铌酸盐/钽酸钙型钙钛矿氧化物制成的第一结晶相和由M-Ti-O尖晶石化合物（其中元素M为单价至四价元素）。

3. 发明公开

US20240065107A1 PIEZOELECTRIC ELEMENT AND PRODUCTION METHOD THEREFOR 审中-公开
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

4. 发明申请

US20170141292A1 LEAD-FREE PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT USING THE SAME, AND METHOD OF MANUFACTURING LEAD-FREE PIEZOELECTRIC CERAMIC COMPOSITION 审中-公开
公开(公告)号：US20170141292A1
公开(公告)日：2017-05-18
申请号：US15129877
申请日：2015-03-05
申请人： NGK SPARK PLUG CO., LTD.
发明人： Hisashi KOZUKA , Hideto YAMADA , Takayuki MATSUOKA , Kazuaki KITAMURA , Masato YAMAZAKI , Toshiaki KURAHASHI , Takashi KASASHIMA , Yasuyuki OKIMURA , Kazushige OHBAYASHI
IPC分类号： H01L41/187 , C04B35/64 , C04B35/495 , H01L41/047 , H01L41/43
CPC分类号： H01L41/1873 , C04B35/495 , C04B35/64 , C04B2235/3201 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3232 , C04B2235/3234 , C04B2235/3244 , C04B2235/3255 , C04B2235/3267 , C04B2235/3272 , C04B2235/3277 , C04B2235/3279 , C04B2235/3284 , C04B2235/3286 , C04B2235/604 , C04B2235/763 , C04B2235/768 , C04B2235/79 , C04B2235/80 , C04B2235/96 , H01L41/047 , H01L41/43
摘要： A lead-free piezoelectric ceramic composition including an alkali niobate/tantalate perovskite oxide main phase having piezoelectric properties and a different metal oxide subphase. The mole ratio (Na/K) between Na (sodium) and K (potassium) in the main phase assumes a value in a range represented by 0.40 direction with the main phase represented as a pseudo-cubic crystal system.

5. 发明申请

US20160329687A1 SPARK PLUG 有权
标题翻译： SPARK插头
公开(公告)号：US20160329687A1
公开(公告)日：2016-11-10
申请号：US15108115
申请日：2014-12-25
申请人： NGK SPARK PLUG CO., LTD.
发明人： Takashi KASASHIMA , Katsuya TAKAOKA , Kazuhiro KUROSAWA , Kuniharu TANAKA , Toshitaka HONDA , Hirokazu KURONO , Haruki YOSHIDA , Hironori UEGAKI
IPC分类号： H01T13/05 , H01T13/41
CPC分类号： H01T13/05 , F02P11/00 , H01T13/41
摘要： A connection portion connecting a center electrode and a terminal metal fixture together in a through hole of the insulator includes a resistor and a magnetic substance structure including a magnetic substance and a conductor and being disposed on a leading end side or a rear end side of the resistor while being positioned away from the resistor. The connection portion further includes a first conductive sealing portion, a second conductive sealing portion and a third conductive sealing portion. The first conductive sealing portion is disposed on a leading end side of a first member and is in contact therewith. The second conductive sealing portion is disposed between the first member and a second member and is in contact with the first and second members. The third conductive sealing portion is disposed on a rear end side of the second member and is in contact therewith.
摘要翻译：在绝缘体的通孔中连接中心电极和端子金属固定器的连接部分包括电阻器和包括磁性物质和导体的磁性物质结构，并且设置在所述绝缘体的前端侧或后端侧电阻器，同时远离电阻器定位。连接部分还包括第一导电密封部分，第二导电密封部分和第三导电密封部分。第一导电密封部分设置在第一构件的前端侧并与其接触。第二导电密封部分设置在第一构件和第二构件之间并且与第一构件和第二构件接触。第三导电密封部分设置在第二构件的后端侧并与其接触。

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