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公开(公告)号：US10958045B2
公开(公告)日：2021-03-23
申请号：US16965752
申请日：2019-09-03
发明人： Daisuke Sumoyama , Kazuki Ito
摘要： In a spark plug, a base material contains 50 mass % or more of Ni, 8 mass % or more and 40 mass % or less of Cr, 0.01 mass % or more and 2 mass % or less of Si, 0.01 mass % or more and 2 mass % or less of Al, 0.01 mass % or more and 2 mass % or less of Mn, 0.01 mass % or more and 0.1 mass % or less of C, and 0.001 mass % or more and 5 mass % or less of Fe. A discharge member contains at least Pt of a P group (Pt, Rh, Ir, and Ru) and Ni. The atomic concentration K of the P group of the discharge member, the atomic concentration L of the P group of the base material, the atomic concentration M of Ni of the discharge member, and the atomic concentration N of Ni of the base material satisfy (K+L)/(M+N)≤1.14.
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公开(公告)号：US10958044B1
公开(公告)日：2021-03-23
申请号：US17038401
申请日：2020-09-30
发明人： Yusuke Kawashima , Naoki Nishio , Yusuke Tanahashi
摘要： In the spark plug, an insulator is held by a metal shell via a packing. The packing includes a base material and a metal layer formed on a surface of the base material. In a cross section including the axial line, of distances between end points of the metal layer on a first contact surface of the insulator that contacts with the metal layer and first points which are intersections of the first contact surface and first perpendiculars extending to the first contact surface from first corners at which a first surface and third surfaces of the base material intersect each other is longer than a thickness of the metal layer at a middle position on the third surface that corresponds to half a length measured along the third surface.
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43.发明授权公开(公告)号：US10931087B2
公开(公告)日：2021-02-23
申请号：US16321218
申请日：2017-03-14
发明人： Tomoaki Kato
摘要： An ignition plug includes a tubular insulator, a metallic shell disposed around the outer circumference of the insulator, a center electrode disposed in an axial hole of the insulator, and a ground electrode connected to the forward end of the metallic shell and facing the center electrode. The metallic shell has a threaded portion to be engaged with an internal combustion engine. The relational expression Ss/(Sa+Sb)≥2.6 is satisfied, where Ss is the surface area of an outer circumferential surface of the metallic shell extending from the rear end of the threaded portion to the forward end of the threaded portion, Sa is the surface area of that portion of the metallic shell which is to be exposed to combustion gas of the internal combustion engine, and Sb is the surface area of that portion of the insulator which is to be exposed to the combustion gas.
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公开(公告)号：US10921281B2
公开(公告)日：2021-02-16
申请号：US16279786
申请日：2019-02-19
发明人： Hitoshi Furuta , Tetsuo Yamada , Akinori Kojima
IPC分类号： G01N27/407 , G01N27/41 , G01N27/409 , G01N33/00
摘要： A gas sensor element configured to detect a first component and a second component of a measurement target gas comprises an element body portion, a first detection portion, a second detection portion with a porous region, and an element protection portion. The element protection portion covers the porous region and a region at the front side with respect to the porous region in a normal side face, and covers a part of a region at the front side with respect to the second detection portion without covering the second detection portion in a second detection side face. The element protection portion is formed so as not to cover the second detection portion but to cover the porous portion of the first detection portion.
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公开(公告)号：US20210036493A1
公开(公告)日：2021-02-04
申请号：US16966093
申请日：2019-09-03
发明人： Daisuke SUMOYAMA , Kazuki ITO
摘要： A spark plug capable of avoiding a discharge member bonded to a base material from peeling off easily is provided. The spark plug includes: a first electrode including a base material and a discharge member having at least a portion thereof bonded to the base material with a diffusing layer interposed therebetween; and a second electrode facing the discharge member with a spark gap interposed therebetween. The base material contains 50 mass % or more of Ni, 8 mass % or more and 40 mass % or less of Cr, 0.05 mass % or more and 2 mass % or less of Si, 0.01 mass % or more and 2 mass % or less of Al, 0.01 mass % or more and 2 mass % or less of Mn, 0.01 mass % or more and 0.1 mass % or less of C, and 0.001 mass % or more and 0.04 mass % or less of Fe.
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公开(公告)号：US20210007183A1
公开(公告)日：2021-01-07
申请号：US16969703
申请日：2019-02-12
发明人： Kaname MIWA
摘要： A holding device including a plate-shaped member, a base member, a plurality of heater electrodes disposed in the plate-shaped member, a plurality of electricity supply terminals, a bonding portion, and insulating members. The holding device holds an object on the surface of the plate-shaped member. The plurality of electricity supply terminals disposed in the holding device include N individual electricity supply terminals (N is an integer of 2 or more) electrically connected to respective N heater electrodes of the plurality of heater electrodes, and a common electricity supply terminal electrically connected to all the N heater electrodes. The N individual electricity supply terminals are received in one terminal hole in which the common electricity supply terminal is not received and are insulated from one another by an insulating member. The common electricity supply terminal is received in another terminal hole in which the individual electricity supply terminals are not received.
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公开(公告)号：US10883959B2
公开(公告)日：2021-01-05
申请号：US16006222
申请日：2018-06-12
发明人： Ai Igarashi , Kouji Toida , Shun Sakuma
IPC分类号： G01N27/407
摘要： A plate-shaped sensor element (10) including at least a first layer (150), a second layer (130), and a third layer (140) being stacked in a stacking direction. The first layer and the third layer are mainly formed of ceramic. The second layer is disposed between the first layer and the third layer in the stacking direction. The second layer has an air introduction hole (131) opened at an end surface. In a cross-section perpendicular to a direction of an axis O, a length L1 of a shortest line segment P1 connecting an upper end surface (10a, 10b) of the sensor element and the centroid G1 of the sensor element and a length L2 of a shortest line segment P2 connecting the upper end surface of the sensor element and the centroid G2 of the air introduction hole, satisfy a relationship of |L2−L1|/L1≤0.05.
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公开(公告)号：US10852269B2
公开(公告)日：2020-12-01
申请号：US16417893
申请日：2019-05-21
发明人： Tetsuo Yamada , Hitoshi Furuta
IPC分类号： G01N27/407 , G01N33/00 , G01N27/416
摘要： A gas sensor for detecting the concentration of a detection target gas in an atmosphere of interest is disposed on an electrically insulating member. The gas sensor includes an insulating porous layer formed of an electrically insulating porous material, a reference electrode, a solid electrolyte body, a detection electrode that are stacked in this order on the electrically insulating member, and a reference electrode lead disposed between the insulating member and the insulating porous layer. The insulating porous layer defines a through hole in a region sandwiched between the reference electrode lead and the reference electrode. An electrically conductive member formed of a material having electrical conductivity is disposed in the through hole so as to extend from an opening of the through hole at one end thereof to an opening of the through hole at the other end thereof.
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公开(公告)号：US10830729B2
公开(公告)日：2020-11-10
申请号：US15980817
申请日：2018-05-16
IPC分类号： G01N27/406 , G01N27/41
摘要： In a sensor control device which controls a sensor, a first filter unit extracts a first filtered signal obtained by attenuating a frequency component higher than a first cutoff frequency from a digital signal indicating a current-application control value for a pump current, and a second filter unit extracts a second filtered signal obtained by attenuating a frequency component higher than a second cutoff frequency from the first filtered signal. A cutoff frequency setting unit sets at least one of the first cutoff frequency and the second cutoff frequency such that the sensor control device can control at least two types of sensors.
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公开(公告)号：US10811851B1
公开(公告)日：2020-10-20
申请号：US16877897
申请日：2020-05-19
发明人： Tatsuya Gozawa , Kenji Ban
摘要： A spark plug includes: a center electrode; a ground electrode that is provided such that a gap for spark discharge is formed between the center electrode and the ground electrode; and a plug cover covering the center electrode and the ground electrode from a front side. The plug cover has a through hole, wherein the plug cover includes a diameter reduction portion formed in a range of 0.1 mm or less from an outer open end of the through hole in a direction along a central axis of the through hole and having a diameter gradually decreasing from the outer open end toward an inner open end of the through hole. A relationship of 0 mm
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