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1. 发明申请

US20220113277A1 GAS SENSOR 有权
公开(公告)号：US20220113277A1
公开(公告)日：2022-04-14
申请号：US17497012
申请日：2021-10-08
申请人： NGK INSULATORS, LTD.
发明人： Yusuke WATANABE , Shotaro NIIZUMA , Toshihiro HIRAKAWA , Hayami AOTA
IPC分类号： G01N27/407 , G01N27/41 , G01N27/409
摘要： A gas sensor includes: a laminate formed of a plurality of layers including at least one layer of a solid electrolyte; a reference gas chamber formed in the laminate and containing a reference gas; and a reference electrode partially exposed in the reference gas chamber. A portion which is not exposed in the reference gas chamber, of the reference electrode is sandwiched between, among the layers, a first layer and a second layer adjacent to the first layer. When an area of the portion sandwiched between the first layer and the second layer, of the reference electrode is defined as a first area, and an area of a portion exposed in the reference gas chamber, of the reference electrode is defined as a second area, a ratio of the first area to the second area is 0.3 or more.

2. 发明申请

US20210080421A1 GAS SENSOR 有权
公开(公告)号：US20210080421A1
公开(公告)日：2021-03-18
申请号：US17022184
申请日：2020-09-16
申请人： NGK INSULATORS, LTD.
发明人： Shotaro NIIZUMA , Yusuke WATANABE , Toshihiro HIRAKAWA , Hayami AOTA
IPC分类号： G01N27/406 , G01N27/407
摘要： A gas sensor includes: a sensor element; a plurality of element pads formed on a rear end portion of the sensor element; and a plurality of contact members holding the rear end portion of the sensor element and electrically connected respectively to the plurality of element pads. At least one contact member of the plurality of contact members has an end portion having a smaller width Wt than the other contact members.

3. 发明申请

US20210063342A1 GAS SENSOR 有权
公开(公告)号：US20210063342A1
公开(公告)日：2021-03-04
申请号：US17002942
申请日：2020-08-26
申请人： NGK INSULATORS, LTD.
发明人： Yusuke WATANABE , Shotaro NIIZUMA , Hayami AOTA , Toshihiro HIRAKAWA
IPC分类号： G01N27/406 , G01N33/00 , G01N27/407
摘要： A gas sensor includes: a sensor element; a ceramic housing holding a rear end portion of the sensor element and provided with metal terminals electrically connected to the sensor element; and an elastic insulating member that is fixed in the rear of the sensor element and into which a plurality of lead wires electrically connected to the metal terminals are inserted. The elastic insulating member has one or more common spaces formed in a surface of the elastic insulating member that faces the ceramic housing. Two or more of the lead wires are arranged in each common space.

4. 发明公开

US20230194463A1 GAS SENSOR 审中-公开
公开(公告)号：US20230194463A1
公开(公告)日：2023-06-22
申请号：US18082437
申请日：2022-12-15
申请人： NGK INSULATORS, LTD.
发明人： Yohei GORO , Yusuke WATANABE , Akihiro NAKAJIMA , Toshihiro HIRAKAWA
IPC分类号： G01N27/409 , G01N33/00 , G01N27/407 , G01N27/30 , G01N27/41 , G01N27/406
CPC分类号： G01N27/409 , G01N33/0037 , G01N27/4073 , G01N27/301 , G01N27/41 , G01N27/4067
摘要： A gas sensor includes an element body, a pump cell, an impedance measurer, and a calculation unit. The pump cell has an inner electrode disposed in a measurement-object gas flow section of the element body, and an outer electrode disposed outside an element body to come into contact with a measurement-object gas, the pump cell being configured to adjust an oxygen concentration in a vicinity of the inner electrode. The impedance measurer performs first measurement to measure a first impedance by applying a voltage having a first frequency to the pump cell, and second measurement to measure a second impedance by applying a voltage having a second frequency higher than the first frequency to the pump cell. The calculation unit calculates the reaction resistance index correlated with the reaction resistance of the pump cell, based on the first and second impedances.

5. 发明申请

US20220113279A1 GAS SENSOR 有权
公开(公告)号：US20220113279A1
公开(公告)日：2022-04-14
申请号：US17497014
申请日：2021-10-08
申请人： NGK INSULATORS, LTD.
发明人： Yusuke WATANABE , Shotaro NIIZUMA , Toshihiro HIRAKAWA , Hayami AOTA
IPC分类号： G01N27/41 , G01N27/407
摘要： A gas sensor includes: a laminate including at least one layer made of a solid electrolyte; a measured gas flow path formed in the laminate; and a pump electrode exposed in the measured gas flow path. In a part of a rear end side region, the pump electrode is sandwiched between a first layer and a second layer or is covered with a covering layer formed on the inner surface of the measured gas flow path. The area of a portion exposed in the measured gas flow path, of the pump electrode is 4 mm2 or more. The area of a portion exposed in the measured gas flow path, of the front end side region is larger than the area of a portion exposed in the measured gas flow path, of the rear end side region.

6. 发明申请

US20170259460A1 MANUFACTURING METHOD OF HONEYCOMB STRUCTURE FORMING DIE, AND HONEYCOMB STRUCTURE FORMING DIE 审中-公开
公开(公告)号：US20170259460A1
公开(公告)日：2017-09-14
申请号：US15415054
申请日：2017-01-25
申请人： NGK INSULATORS, LTD.
发明人： Toshihiro HIRAKAWA , Toshio YAMADA , Yukio MIYAIRI
IPC分类号： B29C33/38 , B29C47/00 , B29D99/00 , B29C47/12
摘要： A manufacturing method of a honeycomb structure forming die includes a linear slit forming step of forming, in a kneaded material discharging surface of a die substrate, a plurality of linear slits which are straight from one end to the other end on the kneaded material discharging surface, a slit sealing material disposing step of disposing a slit sealing material in parts of the plurality of linear slits, and a back hole forming step of forming back holes to introduce a kneaded material, in a kneaded material introducing surface of the die substrate which is present on a side opposite to the kneaded material discharging surface.

7. 发明申请

US20170056804A1 PLUGGED HONEYCOMB STRUCTURE AND PLUGGED HONEYCOMB SEGMENT 有权
标题翻译：插入式蜂窝结构和插入式蜂窝电话部分
公开(公告)号：US20170056804A1
公开(公告)日：2017-03-02
申请号：US15245587
申请日：2016-08-24
申请人： NGK INSULATORS, LTD.
发明人： Kazuya MORI , Toshihiro HIRAKAWA
IPC分类号： B01D46/24
CPC分类号： B01D46/2455 , B01D46/2459 , B01D46/2462 , B01D46/2466 , B01D46/247 , B01D46/2474 , B01D2046/2481 , B01D2046/2485
摘要： A plugged honeycomb structure includes: a plurality of honeycomb segments, a bonding layer, and plugging portions to plug open ends of cells of the honeycomb segment. Each honeycomb segment is configured so that the cells having at least two types of different shapes have a predetermined repeated sequence pattern. A circumferential-wall partially surrounded cell in which a partition wall and a segment circumferential wall are disposed so as to surround the cell has an area of open end that has a specific ratio to an area of open end of a partition-wall entirely surrounded cell including the cross-sectional shape of the circumferential-wall partially surrounded cell. The repeated sequence pattern of the cells is kept at a boundary between two of the honeycomb segments bonded with the bonding layer at an inflow end face and an outflow end face.
摘要翻译：堵塞蜂窝结构体包括多个蜂窝段，接合层和堵塞蜂窝段的单元的开口端的堵塞部分。每个蜂窝段被配置成使得具有至少两种类型的不同形状的单元具有预定的重复序列模式。围绕电池单元设置有分隔壁和片段周壁的圆周壁部分包围的单元具有与分隔壁整个被围绕的单元的开口端的面积具有特定比例的开口端面积包括周壁部分包围的电池的横截面形状。电池的重复序列图案保持在与流入端面和流出端面处的接合层接合的两个蜂窝片之间的边界。

8. 发明申请

US20160069308A1 HONEYCOMB FILTER 有权
标题翻译：蜂窝电话滤波器
公开(公告)号：US20160069308A1
公开(公告)日：2016-03-10
申请号：US14840425
申请日：2015-08-31
申请人： NGK Insulators, Ltd.
发明人： Yukio MIYAIRI , Kazuhiko KUMAZAWA , Toshihiro HIRAKAWA , Toshio YAMADA
IPC分类号： F02M35/024 , B01D46/24
CPC分类号： F02M35/02475 , B01D46/2418 , B01D46/2425 , B01D46/2429 , B01D46/247 , B01D46/2474 , B01D2046/2433 , F01N3/0222 , Y02T10/20
摘要： The honeycomb filter includes a honeycomb substrate having porous partition walls defining a plurality of cells and plugging portions. In a cross section, the cells are arranged so that a periphery of an inlet plugged cell including an open end whose shape is a square in which a length of one side is L1 is surrounded with four rectangular outlet plugged cells each including an open end whose shape is a rectangle in which a length of one side is L1 and a length of the other side is L2 (L1>L2) and four square outlet plugged cells each including an open end whose shape is a square in which a length of one side is L2. A partition wall center distance a, a partition wall center distance b and a partition wall thickness t satisfy the following equation (1): 0.95
摘要翻译：蜂窝过滤器包括具有限定多个单元和堵塞部分的多孔隔壁的蜂窝基板。在横截面中，电池被布置成使得包括开口端的入口堵塞电池的周边，其形状是一边的长度为L1的正方形，其四个矩形出口堵塞电池被包围，每个包括开口端形状是一边的长度为L1，另一侧的长度为L2（L1> L2）的矩形，以及四个方形的出口堵塞的电池，其各自包括形状为方形的开口端，其中一侧的长度是L2。分隔壁中心距离a，隔壁中心距离b和分隔壁厚度t满足下式（1）：0.95

9. 发明申请

US20130239532A1 FILTER ELEMENT 有权
标题翻译：过滤元件
公开(公告)号：US20130239532A1
公开(公告)日：2013-09-19
申请号：US13782089
申请日：2013-03-01
申请人： NGK INSULATORS, LTD.
发明人： Satoshi SAKASHITA , Toshihiro HIRAKAWA
IPC分类号： F01N3/022
CPC分类号： F01N3/0222 , B01D46/247 , B01D46/2474 , B01D2279/30 , F01N2330/34 , Y02T10/20
摘要： A filter element including inflow passages and outflow passages and, a total cross-sectional area of all the inflow passages is larger than a total cross-sectional area of all the outflow passages, and the number of the inflow passages is larger than the number of the outflow passages, a cross section of the filter element is formed by the large number of outflow passages each having a regular hexagonal shape and the large number of inflow passages each having a modified hexagonal shape, the large number of regular hexagonal outflow passages are formed by first hexagonal passages, and second hexagonal passages each having a cross-sectional area smaller than that of each of the first hexagonal passages, an outer peripheral side of each of the first hexagonal passages and the second hexagonal passages is surrounded with six modified hexagonal inflow passages via the partition walls.
摘要翻译：包括流入通道和流出通道的过滤元件，并且所有流入通道的总横截面面积大于所有流出通道的总横截面面积，并且流入通道的数量大于流出通道，过滤元件的横截面由大量正六边形的流出通道和大量的具有改进的六边形形状的流入通道形成，形成大量正六边形流出通道通过第一六边形通道和每个具有比每个第一六边形通道小的横截面面积的第二六边形通道，每个第一六边形通道和第二六边形通道的外周侧被六个改进的六边形流入物包围通过分隔壁的通道。

10. 发明申请

US20230098074A1 GAS SENSOR ELEMENT 有权
公开(公告)号：US20230098074A1
公开(公告)日：2023-03-30
申请号：US17882907
申请日：2022-08-08
申请人： NGK Insulators, Ltd.
发明人： Yusuke WATANABE , Shotaro NIIZUMA , Toshihiro HIRAKAWA , Kirari TAKAHASHI
IPC分类号： G01N27/407
摘要： Provided is a gas sensor element that can be used for relatively long period of time without leading to a problem even in a harsh usage environment. A gas sensor element according to one aspect of the present invention includes a laminate in which an internal space is provided, and a first porous layer arranged so as to face the internal space. The first porous layer is in contact with the first solid electrolyte layer and a side face of the spacer layer that faces the internal space, and has a porosity or 10% or more and 50% or less.

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