公开(公告)号：US10801389B2

公开(公告)日：2020-10-13

申请号：US15735162

申请日：2016-06-08

Applicant: AMOTECH CO., LTD.

Inventor： Yeon-Soo Chung ,  Soo-Min Oh ,  Eun-Ji Kim ,  Sung-Jin Hong

IPC: F01N9/00 ,  F01N3/021 ,  F01N13/00 ,  G01N15/06 ,  G01N33/00 ,  G01N27/22 ,  G01N25/32 ,  G01N15/00

Abstract: A particulate matter sensor is provided. The particulate matter sensor includes: an insulating substrate; a first electrode unit, and a plurality of spaced electrodes; a second electrode unit and a heater unit. Wherein each of the spaced electrode includes a sensing unit, wherein the particulate matter is deposited on the sensing unit, and a capacitor unit is configured on the spaced electrode for measuring capacitance. The plurality of spaced electrodes and the rim electrode are electrically connected when particulate matter is deposited, and thereby the capacitance between the first electrode unit and the second electrode unit can be measured.

公开(公告)号：US10473615B2

公开(公告)日：2019-11-12

申请号：US15521604

申请日：2015-10-21

Applicant: AMOTECH CO., LTD.

Inventor： Yeon-Soo Chung ,  Kil Jin Park ,  Sung-Jin Hong ,  Soo-Min Oh ,  Eun-Ji Kim

IPC: G01N27/407 ,  F01N11/00 ,  G01N27/12 ,  G01N27/26 ,  C04B35/48 ,  C04B35/622 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64 ,  C04B38/06 ,  G01N27/406

Abstract: Provided is a method of manufacturing a porous protective layer for a gas sensor. The porous protective layer according to one Example of the present invention is manufactured by a method of manufacturing a porous protective layer for a gas sensor including (1) a step of introducing a composition for forming a porous protective layer including a pore former and a ceramic powder, which includes particles having a degree of deformation of 1.5 or more expressed by the following Relational Formula 1 according to the present invention, onto a sensing electrode for a gas sensor, and (2) a step of sintering the introduced composition for forming a porous protective layer.

公开(公告)号：US10393693B2

公开(公告)日：2019-08-27

申请号：US15519777

申请日：2015-10-15

Applicant: AMOTECH CO., LTD.

Inventor： Yeon-Soo Chung ,  Kil Jin Park ,  Sung-Jin Hong ,  Soo-Min Oh ,  Eun-Ji Kim

IPC: G01N27/407 ,  F01N11/00 ,  G01N27/406

Abstract: Provided is a flat plate-type oxygen sensor element. The flat plate-type oxygen sensor element according to an exemplary embodiment of the present invention includes: a first electrolyte layer having a sensing electrode exposed to a target gas; a second electrolyte layer on which a reference electrode is disposed; and a heating unit having a heating resistor surrounded by an insulating layer and disposed between the sensing electrode and the reference electrode, wherein the heating unit is disposed so that the heating resistor is located at a position ranging from 40 to 60% of a total height from an upper surface of the first electrolyte layer to a lower surface of the second electrolyte layer.