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公开(公告)号：US20220187237A1
公开(公告)日：2022-06-16
申请号：US17603098
申请日：2020-09-28
发明人： Hitoshi FURUTA , Akinori KOJIMA
IPC分类号： G01N27/409 , G01N27/419
摘要： A sensor element including a first ceramic layer (105), and a measurement electrode (110a) and a reference electrode (108a) disposed thereon, further comprising a through hole (105a) formed in the first ceramic layer, a through hole conductor (121c), a reference lead (108b) connected to the reference electrode and connected to the through hole conductor, and a second ceramic layer (103) disposed to face the first ceramic layer, the sensor element further including a gas flow chamber (130) provided between the first and second ceramic layers, and facing the through hole and being in communication with the reference lead, and a gas flow passage (170) open to a second region (100s) of an outer surface of the sensor element, thereby establishing communication between the gas flow chamber and an outside atmosphere. Also disclosed is gas sensor including the gas sensor element and a method for manufacturing the gas sensor element.
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2.发明申请LAMINATED GAS SENSOR ELEMENT, GAS SENSOR, AND METHOD OF MANUFACTURING GAS SENSOR ELEMENT 审中-公开层压气体传感器元件，气体传感器和制造气体传感器元件的方法公开(公告)号：US20150212037A1
公开(公告)日：2015-07-30
申请号：US14601003
申请日：2015-01-20
发明人： Satoshi OKAZAKI , Akinori KOJIMA
IPC分类号： G01N27/407
CPC分类号： G01N27/4071
摘要： A laminated gas sensor element includes a plurality of laminated plate-shaped members, including a plate-shaped insulating member in which a solid electrolyte body is embedded and which has four sides. The solid electrolyte body is formed such that, as viewed in a plane orthogonal to a thickness direction of the insulating member including the solid electrolyte body, a portion of the contour of the solid electrolyte body facing at least one side of the four sides of the insulating member has an arcuate shape projecting toward the one side.
摘要翻译： 层叠气体传感器元件包括多个层压板状部件，其包括其中嵌入固体电解质体并具有四个侧面的板状绝缘部件。 固体电解质体形成为，在与包含固体电解质体的绝缘构件的厚度方向正交的面内观察，固体电解质体的轮廓的一部分面向至少一侧的固体电解质体的四面 绝缘构件具有朝向一侧突出的弓形。
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公开(公告)号：US20230204535A1
公开(公告)日：2023-06-29
申请号：US18085067
申请日：2022-12-20
发明人： Hitoshi FURUTA , Akinori KOJIMA , Kentaro KAMADA , Yosuke SUZUKI
IPC分类号： G01N27/41 , G01N27/407
CPC分类号： G01N27/41 , G01N27/4071 , G01M15/102
摘要： A gas sensor element (10) which includes an element body portion (100); a pump cell (110) which is configured to adjust a concentration of oxygen in a gas to be measured which is introduced into the element body portion (100); a detection chamber (160) which is formed inside the element body portion (100) and into which the gas to be measured in which the concentration of oxygen has been adjusted is introduced; and a layer-shaped cathode electrode (133) which is housed in the detection chamber (160) and configured to decompose NO. A relationship between a volume V1 of the detection chamber (160) and a volume V2 of the cathode electrode (133) in the gas sensor element (10) satisfies either one of conditions (A) and (B) as defined herein.
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公开(公告)号：US20180038821A1
公开(公告)日：2018-02-08
申请号：US15665499
申请日：2017-08-01
发明人： Akinori KOJIMA , Hitoshi FURUTA
IPC分类号： G01N27/407 , G01N27/417 , G01N33/00
摘要： A gas sensor element including a lead portion (79a) formed on a lower surface of an insulating member (76) and extending through a through hole (176) to an upper surface thereof, and a lead portion (79b) extending from the upper surface of the insulating member (76) through the through hole (176) to the lower surface of the insulating member (76) so as to cover the lead portion (79a) along the inner circumferential wall and a portion of the lower surface around the through hole. The lead portion (79a) has a section exposed to a space (230) on the lower surface side of the insulating member (76). The lead portion (79b) is disposed so as to face the insulating member (76) with the space (230) therebetween. The lead portion (79a) communicates with the outside through the space (230). Also disclosed is a method for producing the gas sensor element.
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5.发明申请GAS SENSOR ELEMENT, GAS SENSOR, AND METHOD OF MANUFACTURING GAS SENSOR ELEMENT 有权气体传感器元件，气体传感器和制造气体传感器元件的方法公开(公告)号：US20160091456A1
公开(公告)日：2016-03-31
申请号：US14862209
申请日：2015-09-23
发明人： Satoshi OKAZAKI , Akinori KOJIMA
IPC分类号： G01N27/407 , B05D3/00 , B05D3/02 , B05D3/06
CPC分类号： G01N27/4073
摘要： A gas sensor element (10) includes a first composite ceramic layer (111) having a plate-shaped first surrounding portion (112) formed of an insulating ceramic and including a through hole inner-perimetric-surface (115) which defines a through hole (112h), and a plate-shaped first electrolyte portion (121) formed of a solid electrolyte ceramic, disposed in the through hole (112h), and including an electrolyte outer-perimetric-surface (125) in contact with the through hole inner-perimetric-surface (115). The electrolyte outer-perimetric-surface (125) of the first electrolyte portion (121) is sloped toward an exterior of the first electrolyte portion (121) as it approaches one side DT1. The through hole inner-perimetric-surface (115) and the electrolyte outer-perimetric-surface 125 are in close contact with each other along their entire perimeters.
摘要翻译： 气体传感器元件（10）包括第一复合陶瓷层（111），该第一复合陶瓷层（111）具有由绝缘陶瓷形成的板状第一环绕部分（112），并且包括通孔内周表面（115） （112h），并且设置在所述通孔（112h）中的由固体电解质陶瓷形成的板状的第一电解质部分（121），并且包括与所述通孔内部接触的电解质外周面（125） - 表面（115）。 第一电解质部分（121）的电解质外周表面（125）在接近一侧DT1时朝向第一电解质部分（121）的外部倾斜。 通孔内周表面（115）和电解质外围表面125沿其整个周边彼此紧密接触。
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公开(公告)号：US20230068377A1
公开(公告)日：2023-03-02
申请号：US17899212
申请日：2022-08-30
发明人： Hitoshi FURUTA , Akinori KOJIMA , Kentaro KAMADA , Yosuke SUZUKI
IPC分类号： G01N27/407
摘要： A gas sensor element includes: a first ceramic structure (100A) having a detection cell (120); a second ceramic structure (100B) having a pump cell (110) disposed apart from the first ceramic structure in a lamination direction; and a third ceramic structure (100C) having a frame-shaped body (200) surrounding a space (150a) formed between the first and second ceramic structures, the frame-shaped body including a gas introduction portion (151) and a peripheral wall portion (141). A gap (150b) connected to the space (150a) is formed between an opposed surface (151b1) and the second ceramic structure. A ceramic buffer layer (300) having a lower shrinkage start temperature than a material for forming the gas introduction portion is formed on the opposed surface so as to overlap a boundary portion X between an edge (150b1) on the external side of the gap and the second ceramic structure when viewed in the lamination direction.
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公开(公告)号：US20190257783A1
公开(公告)日：2019-08-22
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 , G01N27/409 , G01N27/41
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：US20180328879A1
公开(公告)日：2018-11-15
申请号：US15974268
申请日：2018-05-08
发明人： Ai IGARASHI , Kouji TOIDA , Akinori KOJIMA , Akihiro HARA , Hitoshi FURUTA
IPC分类号： G01N27/407 , B28B11/24 , B28B11/14 , B28B1/30
CPC分类号： G01N27/4072 , B28B1/30 , B28B11/14 , B28B11/243 , G01N27/4073
摘要： A method for producing a gas sensor element (10), the gas sensor element including a diffusive porous layer (113) disposed in a measurement chamber (111) and exposed to the outside and a ceramic insulating layer (115) forming sidewalls of the measurement chamber. The method includes transferring green diffusive porous layer pieces (113x) cut in advance so as to have prescribed dimensions onto a first ceramic green sheet (110x); applying an insulating paste which later becomes the ceramic insulating layer to the first ceramic green sheet; laminating the first ceramic green sheet onto a second ceramic green sheet (120x) to form a ceramic laminate (200x); cutting the ceramic laminate along prescribed cutting lines C to obtain a plurality of gas sensor element pieces 10x; and firing the gas sensor element pieces.
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