公开(公告)号：US20210020983A1

公开(公告)日：2021-01-21

申请号：US16981633

申请日：2019-05-13

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Daisuke SHISHIHARA ,  Yuki TAKEUCHI ,  Ayako KONDO ,  Hideaki HIKOSAKA ,  Hidetoshi MIZUTANI

IPC: H01M10/0562 ,  H01M10/0525

Abstract: Provided is an ionic conductor that, as a molded article that has been press-molded without firing, can exhibit a high lithium ionic conductivity. The ionic conductor comprises an ionic conductive powder that has a garnet structure or garnet-like structure containing at least Li, La, Zr, and O. This ionic conductor further comprises an ionic liquid that exhibits lithium ion conductivity. The ionic conductor has a lithium ion conductivity at 25° C. of at least 1.0×10−5 S/cm.

公开(公告)号：US20210018160A1

公开(公告)日：2021-01-21

申请号：US16968693

申请日：2018-10-31

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Shohei TAKAKU ,  Yosuke YATSUYA ,  Yusuke KATSU ,  Tomoo TANAKA

IPC: F21V7/30 ,  F21V29/70

Abstract: Provided is an optical wavelength conversion device in which heat of an optical wavelength conversion member can be dissipated efficiently while the joint strength between the optical wavelength conversion member and a heat dissipation member is maintained. In the present disclosure, the optical wavelength conversion device includes an optical wavelength conversion member configured to convert the wavelength of incident light; a heat dissipation member which is more excellent in heat dissipation than the optical wavelength conversion member; and a joint portion which joins the optical wavelength conversion member and the heat dissipation member together. The optical wavelength conversion member includes a plate-shaped ceramic fluorescent body and a reflecting film disposed on a heat dissipation member-side surface of the ceramic fluorescent body. The joint portion has a thermal conductivity of 120 W/mK or more. The joint portion has a melting point of 240° C. or higher.

公开(公告)号：US10883192B2

公开(公告)日：2021-01-05

申请号：US15152888

申请日：2016-05-12

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hisashi Kozuka ,  Yasuyuki Okimura ,  Kazushige Ohbayashi

IPC: G01N27/407 ,  G01N27/30 ,  C30B29/22 ,  G01N27/12 ,  C04B35/632 ,  C04B35/626 ,  C04B35/50

Abstract: A sintered electrically conductive oxide for an oxygen sensor electrode includes a crystal phase formed of a perovskite-type electrically conductive oxide containing at least La, Fe and Ni. The oxide has an absolute value of thermoelectromotive force at 770° C. of 21.0 μV/K or less.

公开(公告)号：US10834818B2

公开(公告)日：2020-11-10

申请号：US16585021

申请日：2019-09-27

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Takakuni Nasu ,  Kengo Tanimori ,  Yousuke Kondo ,  Masahiro Kamegai ,  Kouta Kimata ,  Junya Matsura ,  Fumio Shiraki ,  Guangzhu Jin

IPC: H05K1/11 ,  H01L23/00 ,  H01L23/14 ,  H01L23/48 ,  H01L23/52 ,  G01R1/073

Abstract: A wiring board includes: an insulator layer composed mainly of ceramic; a conductor extending through the insulator layer in a thickness direction thereof; and an electrode pad disposed on a first surface of the insulator layer and connected electrically with the conductor, wherein: the electrode pad includes through holes extending through the electrode pad in a thickness direction thereof; and each of the through holes is positioned to avoid overlapping with the conductor in the thickness direction of the insulator layer.

公开(公告)号：US10833486B1

公开(公告)日：2020-11-10

申请号：US16814126

申请日：2020-03-10

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsuya Gozawa ,  Kenji Ban ,  Daiki Goto

IPC: H01T13/32 ,  H01T13/54 ,  H01T13/39

Abstract: A spark plug having excellent ignitability including a rod-shaped center electrode; a ground electrode that includes a facing portion facing a front end portion of the center electrode and forms a discharge gap between the facing portion and the front end portion of the center electrode; an insulator; a metal shell; and a cover portion that covers, from a front end side of the spark plug, the front end portion of the center electrode and the facing portion of the ground electrode to form a pre-chamber and includes injection holes that are through holes.

公开(公告)号：US10828686B2

公开(公告)日：2020-11-10

申请号：US15778329

申请日：2016-10-12

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Satoru Ochiai

IPC: B21J5/10 ,  B21D22/26 ,  B21J5/06 ,  B21J13/02 ,  B21K21/08

Abstract: A multi-diameter tubular body is cold-forged by forming a large-diameter hole portion in a formed body having a preliminary hole through subjection of the preliminary hole to deep hole forming and by punching out the bottom surface of the large-diameter hole portion to thereby form a small-diameter hole portion. Since a punch having a central protrusion on its forward end surface is used, an internal flaw is generated by dead metal in the inner circumferential surface of a depression, formed by the protrusion, in the bottom surface of the large-diameter hole portion. An outside diameter of a protrusion of a deep hole forming punch is rendered smaller than an inside diameter of the small-diameter hole portion to be formed later by punching out the bottom surface of the large-diameter hole portion. As a result, the internal flaw is removed when the small-diameter hole portion is formed.

公开(公告)号：US10813217B1

公开(公告)日：2020-10-20

申请号：US16808597

申请日：2020-03-04

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Takahiro Hayashi ,  Tomoaki Mizutani

IPC: H05K1/11 ,  H05K1/03 ,  H05K3/40

Abstract: Disclosed is a wiring board including: an insulating substrate; a plurality of connection terminals arranged on the insulating substrate; and a plurality of non-conductive protruding parts respectively arranged on areas of the insulating substrate except areas on which the plurality of connection terminals are arranged. The non-conductive protruding parts has a height greater than that of the connection terminals.

公开(公告)号：US20200312607A1

公开(公告)日：2020-10-01

申请号：US16828450

申请日：2020-03-24

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yuji MATSUMOTO ,  Kazunari KOKUBO

IPC: H01J37/24 ,  H02M3/335

Abstract: A discharge control apparatus for controlling a flyback power supply circuit which includes a transformer having a primary coil and a secondary coil and performing voltage conversion, and a driver for controlling energization of the primary coil. The power supply circuit supplies electric energy to a plasma reactor. The discharge control apparatus calculates, based on primary current flowing through the primary coil and primary voltage generated in the primary coil, supply energy supplied to the primary coil and regeneration energy which is a portion of the supply energy not used for the discharge in the plasma reactor. The discharge control apparatus controls the power supply circuit based on the calculated supply energy and the calculated regeneration energy. Also disclosed is a method for controlling the flyback power supply circuit.

公开(公告)号：US10785879B2

公开(公告)日：2020-09-22

申请号：US16031828

申请日：2018-07-10

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsuya Katoh ,  Masanori Ito ,  Masaki Kutsuna

IPC: H05K3/40 ,  H05K3/28 ,  H05K1/09 ,  H05K3/12 ,  H05K3/46 ,  C03C4/14 ,  C03C10/00 ,  H05K1/03 ,  H05K1/02 ,  H05K3/32 ,  C04B35/63 ,  H01L23/15 ,  B32B9/00

Abstract: A method of manufacturing a circuit substrate includes the steps of preparing a conductor paste in which a powder of at least one of a metal boride and a metal silicide is added to a powder of silver (Ag), applying the conductor paste to a surface of a ceramic substrate which has been fired, applying a glass paste to the surface of the ceramic substrate after applying the conductor paste, firing the conductor paste applied to the surface so as to form a conductor trace, and firing the glass paste applied to the surface so as to form a coating layer.

公开(公告)号：US10784654B2

公开(公告)日：2020-09-22

申请号：US16427467

申请日：2019-05-31

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tomoki Kawai

IPC: H01T13/39 ,  H01T13/22 ,  H01T21/02 ,  H01T13/52

Abstract: Spark plug has first and second electrodes. First electrode has tip principally made of noble metal and base material principally made of Ni. The tip is joined to the base material through fusion portion. Second electrode faces discharge surface of the tip. The fusion portion has overlap portion where first interface between the tip and the fusion portion and second interface between the base material and the fusion portion overlap in first direction perpendicular to the discharge surface. When viewing cross section which passes through a center of gravity of the overlap portion projected onto virtual surface parallel to the discharge surface and is perpendicular to the discharge surface, noble metal content is greater than 50 mass % at one end portion of the overlap portion in second direction extending along the discharge surface, and Ni content is greater than 50 mass % at the other end portion of the overlap portion.