公开(公告)号：US20200021084A1

公开(公告)日：2020-01-16

申请号：US16504541

申请日：2019-07-08

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Junji KIMURA

IPC: H01T13/39

Abstract: A spark plug includes a tip extending in a first direction and an electrode base metal having an extending portion extending in the first direction and connected to the tip through a fusion zone. In a section taken along the first direction and containing a center axis of the tip, in a case where two ends of the interface between the extending portion and the fusion zone are located at the same position with respect to the first direction, the linear distance between the ends is denoted by A, or, in a case where one end is located forward of the other end, the distance from the one end to an intersection between a straight line passing the one end and extending perpendicularly to the center axis and the outline of the fusion zone is denoted by A. The interface length B satisfies a relational expression B/A≥1.2.

公开(公告)号：US20200011780A1

公开(公告)日：2020-01-09

申请号：US16505262

申请日：2019-07-08

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Takeshi SUGIYAMA ,  Yoshinori HIBINO

IPC: G01N15/06 ,  B01D46/44 ,  B01D46/00 ,  F01N11/00

Abstract: A particulate detection apparatus for controlling a particulate sensor which detects the amount of particulates discharged from a filter for collecting particulates contained in exhaust gas. The particulate sensor includes a detection section configured to electrify particulates contained in exhaust gas so as to produce electrified particulates. The particulate detection apparatus includes a period judgment section, an output obtainment section and an anomaly judgment section. The period judgment section judges whether or not the present point in time is within a previously set anomaly determination period just after completing a filter regeneration process. The output obtainment section obtains a sensor output representing the result of detection by the particulate sensor in the case where the present point in time is judged to be within the anomaly determination period. The anomaly judgment section judges whether or not the particulate sensor is anomalous based on the sensitivity characteristic of the sensor output.

公开(公告)号：US20200006095A1

公开(公告)日：2020-01-02

申请号：US16481676

申请日：2018-01-31

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Kaname MIWA

IPC: H01L21/67 ,  H05B3/10 ,  H01L21/683 ,  H05B1/02 ,  H05B3/06

Abstract: A holding apparatus including a holding substrate having a first main face on one side in a thickness direction thereof, and a heat generation section which is disposed in the holding substrate and generates heat when energized. The heat generation section includes a plurality of first heating elements arrayed in a planar direction orthogonal to the thickness direction of the holding substrate, and a second heating element disposed on a side toward the first main face in the thickness direction with respect to the plurality of first heating elements. Any one of the plurality of first heating elements is electrically connected to the second heating element in series through a first via extending in the thickness direction within the holding substrate.

公开(公告)号：US10515836B2

公开(公告)日：2019-12-24

申请号：US15659051

申请日：2017-07-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Atsushi Tsuchida

IPC: H02N13/00 ,  H01L21/683 ,  H01L21/67 ,  B32B18/00 ,  C04B35/111

Abstract: This ceramic member 100 includes: a ceramic base body 10 having a terminal 30 embedded therein; a blind hole 11 formed in the ceramic base body 10 and causing the lower surface of the ceramic base body 10 and the terminal 30 to communicate with each other; and a connection member 40 inserted in the blind hole 11, the connection member 40 connected to the terminal 30 by means of a brazing material solidified portion 70. In the blind hole 11, the space surrounded by the inner peripheral surface of the blind hole 11 has, at least at a bottom face 11a, an enlarged portion 11b that is enlarged toward the upper side at least partially with respect to the circumferential direction, and at least a part of the brazing material solidified portion 70 is present in the enlarged portion 11b.

公开(公告)号：US10509009B2

公开(公告)日：2019-12-17

申请号：US15062596

申请日：2016-03-07

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Dai Nishijima ,  Satoshi Teramoto

IPC: G01N27/419 ,  G01N33/00

Abstract: A sensor control apparatus for a gas sensor which detects a particular gas component contained in a gas under measurement. In the case where humidity detection is performed using an electromotive-force-type gas sensor, a sensor control apparatus changes a target voltage of an electromotive force cell to a second target voltage for humidity detection and then to a third target voltage which is lower than a first target voltage which is a target voltage used for detecting the concentration of the particular gas component. In the case where humidity detection is performed using a limiting-current-type gas sensor, the sensor control apparatus changes the voltage applied to a pump cell to a second application voltage for humidity detection and then to a third application voltage which is lower than a first application voltage which is an application voltage used for detecting the concentration of the particular gas component.

公开(公告)号：US10483136B2

公开(公告)日：2019-11-19

申请号：US15093967

申请日：2016-04-08

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Naoya Uemura ,  Yosuke Shinozaki ,  Kohei Yamamoto

IPC: H01L21/683 ,  H01L21/67 ,  H05B3/28

Abstract: As viewed in plane, a ceramic heater includes zone heat-generating elements disposed in respective heating zones so as to heat a ceramic substrate independently. In the heating zone having a hole region, the zone heat-generating element is formed of a linear heat-generating conductor which has parallel segments disposed in parallel, and a turning-back segment which connects, while turning back, the parallel segment of the heat-generating conductor extending toward the hole region to the adjacent parallel segment of the heat-generating conductor so as to prevent the parallel segment extending toward the hole region from overlying the hole region.

公开(公告)号：US10476087B2

公开(公告)日：2019-11-12

申请号：US15570887

申请日：2016-04-27

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tetsuya Morikawa

IPC: H01M8/0286 ,  H01M8/1007 ,  H01M8/0247 ,  H01M8/0273 ,  H01M8/242 ,  H01M8/0206 ,  H01M8/124

Abstract: A fuel cell electricity generation unit including a single cell; first and second interconnectors; a separator; a metal frame member disposed between the separator and the first interconnector; and a gas sealing member having a contact portion in contact with the surfaces of the separator and the second interconnector. The unit has a contact overlap region overlapping with the contact portion in a first direction, and each of the gas sealing member, the separator, the frame member, the first interconnector, and the second interconnector is present in the contact overlap region. At least one of a first weld portion sealing between the separator and the frame member and a second weld portion sealing between the frame member and the first interconnector is formed at a position whose distance from the periphery of the single cell is greater than the distance between the periphery and the contact overlap region.

公开(公告)号：US20190334323A1

公开(公告)日：2019-10-31

申请号：US16310863

申请日：2017-04-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Takuya SHIMAMURA

IPC: H01T21/02 ,  H01T13/32

Abstract: A method for manufacturing a spark plug. A first surface having an area larger than or equal to an area making contact with the tip is produced on the electrode base material by performing at least one of polishing and grinding thereon, and a second surface having an area larger than or equal to an area making contact with a first electrode is produced on the electrode base material by performing polishing or the like thereon. Resistance welding is performed by applying current between the first electrode and a second electrode, after the first surface of the electrode base material and the tip have been brought into contact with each other, the first electrode has been brought into contact with the second surface of the electrode base material, and the second electrode has been brought into contact with the tip.

公开(公告)号：US20190334322A1

公开(公告)日：2019-10-31

申请号：US16310884

申请日：2017-05-15

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Ryouki YAGI ,  Masahiro INOUE

IPC: H01T13/20 ,  H01T13/02

Abstract: Disclosed is a spark plug in which a first electrode has a tip joined to an electrode base through a fusion zone. In a cross section of the first electrode taken along a center axis, an interface of the fusion zone and a tip includes a first region, a second region and a base point present on at least one side of the cross section. The base point is a point connection of the first and second regions and is located farthest away from the imaginary straight line in the direction parallel to the center axis. The base point is positioned so as to satisfy a condition of 0.1≤X/W≤0.4 where W is a length of the interface in a direction perpendicular to the center axis; and X is a distance between the base point and the center axis.

公开(公告)号：US20190318972A1

公开(公告)日：2019-10-17

申请号：US16347676

申请日：2017-06-12

Applicant: NGK Spark Plug Co., Ltd.

Inventor： Makoto NAGAI

IPC: H01L23/13 ,  H04N5/225 ,  H04N5/369 ,  H01L23/34 ,  H01L27/146

Abstract: Disclosed is a wiring board on which an optical element is mounted in a state of being sealed by a transparent plate, lens or the like while preventing or reducing the occurrence of condensation or freezing on a surface of the transparent plate, lens or the like. In one embodiment, the wiring board includes: a board body formed with opposed front and back surfaces by stacking of a plurality of ceramic layers (insulating layers); and a plurality of optical element-mounting pads disposed on a bottom surface of a cavity open to the front surface of the board body. The wiring board further includes a heater circuit arranged at the front surface of the board body or an interface of the ceramic layers of the board body along a peripheral side in plan view.