公开(公告)号：EP3130574A4

公开(公告)日：2018-03-14

申请号：EP15776632

申请日：2015-03-05

Applicant: NGK SPARK PLUG CO

Inventor： KOZUKA HISASHI ,  YAMADA HIDETO ,  MATSUOKA TAKAYUKI ,  KITAMURA KAZUAKI ,  YAMAZAKI MASATO ,  KURAHASHI TOSHIAKI ,  KASASHIMA TAKASHI ,  OKIMURA YASUYUKI ,  OHBAYASHI KAZUSHIGE

IPC: C04B35/00 ,  H01L41/187 ,  H01L41/39 ,  H01L41/43

CPC classification number: 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

Abstract: Provided is a lead-free piezoelectric ceramic composition having high piezoelectric properties. The lead-free piezoelectric ceramic composition fulfils a molar ratio (Na/K) for Na (sodium) and K (potassium) in the main phase thereof of 0.40 direction when the main phase is expressed as a pseudo cubic crystal.

公开(公告)号：EP2980040A4

公开(公告)日：2016-04-06

申请号：EP14775921

申请日：2014-03-11

Applicant: NGK SPARK PLUG CO

Inventor： YAMAZAKI MASATO ,  MATSUOKA TAKAYUKI ,  KITAMURA KAZUAKI ,  KOZUKA HISASHI ,  YAMADA HIDETO ,  KURAHASHI TOSHIAKI ,  KASASHIMA TAKASHI ,  OKIMURA YASUYUKI ,  OHBAYASHI KAZUSHIGE

IPC: C04B35/00 ,  H01L41/09 ,  H01L41/113 ,  H01L41/187 ,  H01L41/333 ,  H03H3/02 ,  H03H9/17

CPC classification number: 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

Abstract: 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).

公开(公告)号：EP3163692A4

公开(公告)日：2018-02-28

申请号：EP15811860

申请日：2015-06-02

Applicant: NGK SPARK PLUG CO

Inventor： TAKAOKA KATSUYA ,  KUROSAWA KAZUHIRO ,  TANAKA KUNIHARU ,  KOZUKA HISASHI ,  HONDA TOSHITAKA ,  KURONO HIROKAZU ,  YOSHIDA HARUKI ,  UEGAKI HIRONORI

IPC: H01T13/05 ,  H01T13/04 ,  H01T13/41 ,  H01T21/02

CPC classification number: H01T13/05 ,  H01T13/41 ,  H01T21/02

Abstract: Disclosed is a spark plug capable of suppressing high-frequency noise by improving the material of an electrical connection part between a center electrode and a metal terminal within an axial hole of an insulator. A spark plug has an electrical connection part arranged in an axial hole of an insulator to establish electrical connection between a center electrode and a metal terminal. The electrical connection part includes a conductor having a first crystal phase formed of a Fe-containing oxide and a second crystal phase formed of a conductive metal oxide of perovskite crystal structure.

公开(公告)号：EP3163692A1

公开(公告)日：2017-05-03

申请号：EP15811860

申请日：2015-06-02

Applicant: NGK SPARK PLUG CO

Inventor： TAKAOKA KATSUYA ,  KUROSAWA KAZUHIRO ,  TANAKA KUNIHARU ,  KOZUKA HISASHI ,  HONDA TOSHITAKA ,  KURONO HIROKAZU ,  YOSHIDA HARUKI ,  UEGAKI HIRONORI

IPC: H01T13/20

CPC classification number: H01T13/05 ,  H01T13/41 ,  H01T21/02

Abstract: Disclosed is a spark plug capable of suppressing high-frequency noise by improving the material of an electrical connection part between a center electrode and a metal terminal within an axial hole of an insulator. A spark plug has an electrical connection part arranged in an axial hole of an insulator to establish electrical connection between a center electrode and a metal terminal. The electrical connection part includes a conductor having a first crystal phase formed of a Fe-containing oxide and a second crystal phase formed of a conductive metal oxide of perovskite crystal structure.

Abstract translation: 公开了一种火花塞，其能够通过改善绝缘体的轴向孔内的中心电极和金属端子之间的电连接部分的材料来抑制高频噪声。 火花塞具有布置在绝缘体的轴向孔中的电连接部分，以建立中心电极和金属端子之间的电连接。 电连接部分包括具有由含Fe氧化物形成的第一晶相和由钙钛矿晶体结构的导电金属氧化物形成的第二晶相的导体。

公开(公告)号：EP3130573A4

公开(公告)日：2018-03-14

申请号：EP15776038

申请日：2015-03-05

Applicant: NGK SPARK PLUG CO

Inventor： KOZUKA HISASHI ,  YAMADA HIDETO ,  MATSUOKA TAKAYUKI ,  KITAMURA KAZUAKI ,  YAMAZAKI MASATO ,  KURAHASHI TOSHIAKI ,  KASASHIMA TAKASHI ,  OKIMURA YASUYUKI ,  OHBAYASHI KAZUSHIGE

IPC: C04B35/00 ,  H01L41/187 ,  H01L41/39 ,  H01L41/43

CPC classification number: 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

Abstract: Provided is a lead-free piezoelectric ceramic composition having high piezoelectric properties. The lead-free piezoelectric ceramic composition fulfils a molar ratio (Na/K) for Na (sodium) and K (potassium) in the main phase thereof of 0.40 direction when the main phase is expressed as a pseudo cubic crystal. The area ratio of the crystal phase reflecting the second spot group in the main phase is no more than 33% and the maximum particle diameter of the crystals reflecting the second spot group in the main phase is no more than 25 nm.

公开(公告)号：EP2835363A4

公开(公告)日：2015-11-18

申请号：EP13773068

申请日：2013-04-02

Applicant: NGK SPARK PLUG CO

Inventor： KOZUKA HISASHI ,  HISHIDA TOMOKO ,  YAMADA HIDETO ,  OHBAYASHI KAZUSHIGE

IPC: C04B35/50 ,  H05K1/09

CPC classification number: H01B1/08 ,  C04B35/01 ,  C04B35/50 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/72 ,  C04B2235/725 ,  C04B2235/768 ,  C04B2235/80 ,  H05K1/0306 ,  H05K1/09 ,  H05K2201/0326

Abstract: Provided is a sintered oxide compact that has high electric conductivity and a small B-value (temperature coefficient), and is suitable for use as an electrically conductive material, and a circuit board that uses the sintered oxide compact. The sintered oxide compact is represented by a composition formula: REaCobNicOx (where RE represents a rare earth element, a + b + c = 1, and 1.3 ‰¤ x ‰¤ 1.7), the sintered oxide compact includes a perovskite phase with a perovskite-type oxide crystal structure, and the a, b, and c satisfy the following relationships: 0.459 ‰¤ a ‰¤ 0.535, 0.200 ‰¤ b ‰¤ 0.475, and 0.025 ‰¤ c ‰¤ 0.300.