公开(公告)号：US20230226630A1

公开(公告)日：2023-07-20

申请号：US17922539

申请日：2021-06-11

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Ryuichi ARAKAWA ,  Tomoo TANAKA ,  Osamu YOSHIMOTO

IPC: B23K1/19

CPC classification number: B23K1/19 ,  B23K2103/166

Abstract: A joined body includes a first member, a second member, and a joining portion disposed therebetween and joining the first member and the second member. The joining portion includes a first joining layer on a side toward the first member and formed of a first joining material, a second joining layer on a side toward the second member and formed of a second joining material, and a metal layer therebetween and having a plurality of holes communicating with one another. The metal layer includes a first-joining-material-impregnated layer on a side toward the first joining layer and in which the plurality of holes are impregnated with the first joining material, a second-joining-material-impregnated layer on a side toward the second joining layer and in which the plurality of holes are impregnated with the second joining material, and an unfilled hole layer therebetween and in which the plurality of holes are void.

公开(公告)号：US20220347781A1

公开(公告)日：2022-11-03

申请号：US17624001

申请日：2020-07-09

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yosuke YATSUYA ,  Ryuichi ARAKAWA ,  Toshiyuki SAKURAI ,  Tsuneyuki ITO ,  Hiroki TAKEUCHI ,  Tomoo TANAKA ,  Yusuke KATSU

IPC: B23K3/08

Abstract: A wavelength conversion member for soldering includes a ceramic fluorescent body for converting a wavelength of light entering from an incident surface of the ceramic fluorescent body, a reflection layer disposed on a back surface of the ceramic fluorescent body on a side opposite the incident surface and partially or entirely covering the back surface, and a junction layer composed of one or more films and covering at least the reflection layer selected from the back surface of the ceramic fluorescent body and the reflection layer. The junction layer has a projecting portion which projects, in relation to an outer circumferential portion of the junction layer, in a center portion of a surface on a side opposite a surface on a side where the junction layer covers at least the reflection layer selected from the back surface and the reflection layer.

公开(公告)号：US20220357027A1

公开(公告)日：2022-11-10

申请号：US17624081

申请日：2020-07-09

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yosuke YATSUYA ,  Ryuichi ARAKAWA ,  Toshiyuki SAKURAI ,  Tomoo TANAKA

IPC: F21V29/503 ,  F21V9/32

Abstract: A wavelength conversion member includes a ceramic fluorescent body for converting a wavelength of incident light, a heat radiation member for radiating heat of the ceramic fluorescent body to an outside atmosphere, and a solder layer for joining together the ceramic fluorescent body and the heat radiation member. The solder layer includes a joining portion disposed between the ceramic fluorescent body and the heat radiation member and a protruding portion protruding outward from an outer circumferential portion of the ceramic fluorescent body. The protruding portion is spaced apart from a side surface formed on the outer circumferential portion of the ceramic fluorescent body. In the solder layer, the maximum value of thickness of the protruding portion is greater than the average value of thickness of the joining portion.

公开(公告)号：US20180123143A1

公开(公告)日：2018-05-03

申请号：US15561263

申请日：2016-03-23

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yoshiaki SATO ,  Makoto KURIBAYASHI ,  Tomoki MURATA ,  Takahiro MASUMOTO ,  Tomoo TANAKA

IPC: H01M8/0247 ,  H01M8/2425 ,  H01M8/1246

CPC classification number: H01M8/0247 ,  H01M8/02 ,  H01M8/0202 ,  H01M8/12 ,  H01M8/1246 ,  H01M8/24 ,  H01M8/2425 ,  H01M2008/1293 ,  Y02E60/366 ,  Y02E60/525 ,  Y02P70/56

Abstract: An electrochemical reaction unit containing a single cell including an electrolyte layer containing solid oxide, and a cathode and an anode which face each other in a first direction with the electrolyte layer intervening therebetween; a current collector disposed on a cathode side of the single cell and having a protrusion protruding toward the cathode; an electrically conductive coat covering a surface of the current collector; and an electrically conductive bonding layer bonding the cathode and the protrusion covered with the coat. In at least one section of the protrusion taken in parallel with the first direction, the protrusion covered with the coat has a covered portion covered with the bonding layer and an exposed portion exposed from the bonding layer and including a corner portion of the protrusion covered with the coat.

公开(公告)号：US20230303457A1

公开(公告)日：2023-09-28

申请号：US18041284

申请日：2021-06-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Osamu YOSHIMOTO ,  Ryuichi ARAKAWA ,  Tomoo TANAKA

IPC: C04B37/02 ,  H01L21/683

CPC classification number: C04B37/026 ,  H01L21/6831 ,  C04B2237/597 ,  C04B2237/62

Abstract: A joined body includes a first member and a second member which are joined together via a joining portion including a metal layer having a plurality of pores communicating with each other. The first member and the metal layer have respective through holes formed in the first member and the metal layer, respectively, and communicating with each other. A tubular member is disposed between an inner side portion of the through hole formed in the metal layer and an interior portion of the metal layer.

公开(公告)号：US20230383926A1

公开(公告)日：2023-11-30

申请号：US18245275

申请日：2021-12-13

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yosuke YATSUYA ,  Toshiyuki SAKURAI ,  Shohei TAKAKU ,  Hiroki YAMAUCHI ,  Tomoo TANAKA ,  Hiroki TAKEUCHI ,  Shinji BAN

IPC: F21V7/30 ,  F21V9/30 ,  F21K9/64

CPC classification number: F21V7/30 ,  F21V9/30 ,  F21K9/64

Abstract: There is provided a wavelength conversion member including: a fluorescent body and a reflective film. The fluorescent body is configured to emit fluorescence by an excitation light and has an incident surface into which the excitation light comes and a rear surface which faces the incident surface. The reflective film is arranged on a side of the rear surface of the fluorescent body and includes a metal layer and ceramic particles dispersed in the metal layer. The ceramic particles are crystalline, and a melting point of the ceramic particles is higher than a melting point of a metal constructing the metal layer.

公开(公告)号：US20230311451A1

公开(公告)日：2023-10-05

申请号：US18043218

申请日：2021-06-25

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Osamu YOSHIMOTO ,  Ryuichi ARAKAWA ,  Tomoo TANAKA

IPC: B32B9/04 ,  B32B7/12 ,  B32B15/20 ,  B32B15/02 ,  B32B9/00 ,  C04B37/02 ,  B23K1/00 ,  B23K35/02 ,  B23K35/26

CPC classification number: B32B9/041 ,  B32B7/12 ,  B32B15/20 ,  B32B15/02 ,  B32B9/005 ,  C04B37/023 ,  B23K1/0016 ,  B23K35/0233 ,  B23K35/26 ,  H01L21/6833

Abstract: A joining layer of a joined body includes a joining material which contains, as a main component, a metal having a surface tension of 1000 mN/m or less at its melting point, and a metal layer which has a plurality of pores formed therein and in which at least some of the pores are impregnated with the joining material.

公开(公告)号：US20230119721A1

公开(公告)日：2023-04-20

申请号：US17793826

申请日：2021-02-02

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Osamu YOSHIMOTO ,  Tomoo TANAKA ,  Kengo HATTORI

IPC: H01T13/39 ,  C22C5/04

Abstract: A noble metal tip for a spark plug according to the present invention contains iridium (Jr) in an amount of 50 mass % or more and aluminum (Al) in an amount of 0.1 mass % or more and 5 mass % or less, and further contains rhodium (Rh), wherein a metallographic structure comprised of fiber-like elements R is observed, and the fiber-like elements R of the metallographic structure have an average aspect ratio of 150 or more and have an average length of 25 μm or less in a minor axis direction.

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：US20180076468A1

公开(公告)日：2018-03-15

申请号：US15560089

申请日：2016-03-26

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Yoshiaki SATO ,  Makoto KURIBAYASHI ,  Tomoki MURATA ,  Takahiro MASUMOTO ,  Tomoo TANAKA

IPC: H01M8/0245 ,  H01M8/1231 ,  H01M8/241 ,  H01M8/0656 ,  H01M8/0247 ,  H01M8/0236 ,  C25B1/04

Abstract: An object is to effectively restrain Cr diffusion from a corner portion of a protrusion of a cathode-side current collector. The electrochemical reaction unit includes a single cell including an electrolyte layer containing solid oxide, and a cathode and an anode which face each other in a first direction with the electrolyte layer intervening therebetween; a current collector disposed on a cathode side of the single cell and having a protrusion protruding toward the cathode; an electrically conductive coat covering a surface of the current collector; and an electrically conductive bonding layer bonding the cathode and the protrusion covered with the coat. In all sections of the protrusion taken in parallel with the first direction, a corner portion of the protrusion covered with the coat is covered with the bonding layer.