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公开(公告)号：US10756517B1
公开(公告)日：2020-08-25
申请号：US16837154
申请日：2020-04-01
发明人： Yusuke Kawamura , Shunsuke Tsuga
摘要： A spark plug that provides an increase in the combustion speed of an engine. The spark plug includes a center electrode, a ground electrode, an insulator, and a cover portion. In a cross-sectional area of a region surrounded by an inner wall surface of the cover portion in a cross section taken along a plane perpendicular to an axial line CX of the spark plug, the cover portion includes: a narrow portion positioned on the front end side with respect to the ground electrode in the direction of the axial line CX and narrowed such that the cross-sectional area is smallest; and a cover front portion positioned on the front end side of the narrow portion and having the cross-sectional area that is larger than the cross-sectional area of the narrow portion and that is largest at the front end of the cover front portion.
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公开(公告)号：US10755959B2
公开(公告)日：2020-08-25
申请号：US15600897
申请日：2017-05-22
发明人： Atsutoshi Iwabuchi , Shinya Kikuchi
IPC分类号： H01L21/683 , B25J15/06 , B65G47/91 , H01L21/687 , B65G49/06
摘要： A substrate holding device includes a base body that has a flat plate-like shape and that includes gas passages that open in an upper surface of the base body, and a plurality of protrusions that protrude from the upper surface of the base body. At least an upper part of each of the protrusions has a conical frustum shape having a base angle of 70° or more and 85° or less.
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公开(公告)号：US10748805B2
公开(公告)日：2020-08-18
申请号：US15960853
申请日：2018-04-24
发明人： Shinya Kikuchi
IPC分类号： H01L21/683 , B25B11/00 , H01L21/687
摘要： A substrate is arranged above a base body such that the substrate comes into contact with an upper end of a support member. Subsequently, vacuum suction is performed on an internal space of the support member through an auxiliary vacuum suction path so that the upper end of the support member is displaced to a height position equal to the height positions of upper ends of multiple protruding portions. Then, vacuum suction is performed, through a vacuum suction path, on a space of which the top and the bottom are defined by the base body and the substrate so that the substrate is brought into contact with the upper ends of the multiple protruding portions.
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公开(公告)号：US10746689B2
公开(公告)日：2020-08-18
申请号：US15899184
申请日：2018-02-19
发明人： Yuzo Higuchi , Satoru Abe , Koji Ishibashi
IPC分类号： G01N27/406 , G01N27/419 , G01N27/407 , G01N27/417 , G01N33/00 , G01N27/414 , G01N27/12
摘要： A sensor element drive circuit is a circuit including a plurality of semiconductor elements formed on a semiconductor substrate for realizing a current control function and a switching function. The current control function is a function of controlling the current flowing between electrodes such that the potential difference between electrodes becomes constant. The switching function is a function for switching between a connected state in which the electrodes are electrically connected to a sensor control apparatus and a cut-off state in which electrical continuity therebetween is broken. When one of an Ip+ terminal, a COM terminal, and a Vs+ terminal is determined to have an anomalous potential, the sensor control apparatus causes the sensor element drive circuit to perform switching from the connected state to the cut-off state, and connects the semiconductor substrate to a negative voltage lower than a ground potential applied to the sensor element drive circuit.
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公开(公告)号：US20200235019A1
公开(公告)日：2020-07-23
申请号：US16717092
申请日：2019-12-17
发明人： Takayuki MIYAJI
IPC分类号： H01L23/053 , H05K1/11 , H01L23/00 , H02H9/00
摘要： A package has a package body formed by stacked insulating layers and having a front surface including a mounting area, a back surface and a side surface; a plurality of hollow portions arranged so as to be adjacent to each other on the front surface of the package body; a plurality of electrode pads individually placed on respective bottom surfaces of the hollow portions; and a partition wall formed by at least one insulating layer that forms the package body and having protruding banks at its both edge sides. Surfaces of the electrode pads are located at a lower position with respect to the front surface of the package body. The hollow portions are arranged at opposite sides of the partition wall. The electrode pads are electrically connected to respective conductor layers that are formed on the back surface and/or the side surface of the package body.
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公开(公告)号：US10720759B2
公开(公告)日：2020-07-21
申请号：US16494331
申请日：2017-08-08
发明人： Susumu Imai
摘要： The spark plug includes an insulator, a metal shell, and a buffering member. The buffering member is filled in a space that is enclosed by an inner peripheral surface of the metal shell and an outer peripheral surface of the insulator. 3 mm2≤L×T is satisfied in a case where: a length in a direction of an axial line of a filled portion filled with the buffering member is defined as a filling length L; a thickness, of a screw portion of the metal shell, that is half a difference left after subtraction of the inner diameter of the metal shell from the pitch diameter of the screw portion is defined as an effective thickness; and a minimum value of the effective thickness of a portion, of the screw portion, present rearward of an inner diameter reduction portion of the metal shell is defined as a minimum thickness T.
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公开(公告)号：US10714906B1
公开(公告)日：2020-07-14
申请号：US16843200
申请日：2020-04-08
发明人： Kenji Ban
摘要： A spark plug capable of facilitating the growth of a flame kernel. The spark plug including a metal shell; a center electrode retained in the metal shell in an insulated manner; a ground electrode disposed such that a spark gap is formed between the center electrode and an end portion of the ground electrode; and a plug cap that covers the center electrode and the end portion of the ground electrode from the front in a region in front of the metal shell and in which a through hole is formed. An inner surface of the plug cap in a region in front of a back end of the end portion of the ground electrode and an inner surface of the through hole each have an arithmetical mean roughness of less than or equal to 6.3 μm.
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公开(公告)号：US20200206828A1
公开(公告)日：2020-07-02
申请号：US16631305
申请日：2018-05-11
发明人： Naoki ANDOH , Takuya HASEGAWA , Takashi FUJIMOTO
摘要： A cutting insert has cutting edges having the same shape and provided at respective corners of a polygon in rotational symmetry about the center axis of the polygon, is clamped in an upright position to a holder, and has a negative side rake angle on a rake face of a side cutting edge. A side cutting edge is present at an intersection ridge between a polygonal face and an outer peripheral face. The outer peripheral face includes a rake face of the cutting edge and a flank of an end cutting edge of another cutting edge different from the side cutting edge. The flank has a positive slope angle in opposition to a negative side rake angle of the side cutting edge. A breaker groove extending in a front-rear direction is formed in the rake face and cuts into the flank, in such a manner as to divide the rake face.
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公开(公告)号：US10684248B2
公开(公告)日：2020-06-16
申请号：US15843990
申请日：2017-12-15
发明人： Hitoshi Furuta , Masaki Nakagawa
IPC分类号： G01N27/406 , G01N27/407 , G01N27/41
摘要： An NOx sensor includes a gas sensor element, a body member made of metal, and a protector made of metal. The body member is formed into a tubular shape extending in an axial direction and accommodates a gas sensor element internally of the same. The NOx sensor is formed into a tubular shape extending in the axial direction and includes an attachment member disposed such that a space extending in the axial direction is formed between the attachment member and the body member. The gas sensor element includes an oxygen concentration detection cell having an oxygen ion-conductive solid electrolyte layer and a detection electrode and a reference electrode formed on the solid electrolyte layer and forming a pair, and a heater for heating the oxygen concentration detection cell to a predetermined temperature. The oxygen concentration detection cell is disposed in the space.
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公开(公告)号：US10679873B2
公开(公告)日：2020-06-09
申请号：US15718953
申请日：2017-09-28
发明人： Tetsuo Kitabayashi , Toshiyuki Endo
摘要： The ceramic heater includes: a ceramic base body made of ceramic and having an upper surface on which an object to be heated is to be placed; a heating resistor included in the ceramic base body; and a cylindrical shaft made of ceramic and connected to a center part of a lower surface of the ceramic base body. The heating resistor includes six heating resistor element groups each including one or more connected heating resistor elements. Among these, three heating resistor element groups each have both ends each connected to the corresponding end of another one of the heating resistor element groups. Power feed terminals which respectively supply powers to a total of three ends composed of these both ends are connected to the total of three ends.
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