公开(公告)号：US20240272107A1

公开(公告)日：2024-08-15

申请号：US18567069

申请日：2022-06-09

Applicant: NAGAOKA UNIVERSITY OF TECHNOLOGY ,  KOA CORPORATION

Inventor： Tomoichiro OKAMOTO ,  Kenichi IGUCHI ,  Yukiko OTA ,  Ryosuke KOMATSU ,  Tetsuro TANAKA ,  Katsuhide NISHIZAWA

IPC: G01N27/12 ,  G01N33/00

CPC classification number: G01N27/125 ,  G01N33/0036

Abstract: An oxygen sensor element that can achieve electric power saving without losing sensor characteristics has a structure in which an outer surface of a ceramic sintered body as a sensing layer made of a composition LnBa2Cu3O7−δ (Ln denotes rare earth element) is covered with heat insulating layers. A heat insulating material having a composition Ln2BaCuO5 is used for the heat insulating layers, and that composition Ln2BaCuO5 is added with 20 mol % of LnBa2Cu3O7−δ. This allows a sintering behavior of the heat insulating layers to come close to a sintering behavior of the sensing layer, and can thus prevent the occurrence of separation of the layers and cracks. The oxygen sensor element has a sandwich structure where the sensing layer is sandwiched between the heat insulating layers, thereby reducing the amount of heat dissipated from the sensing layer, and making it possible to achieve electric power saving.

公开(公告)号：US20230333143A1

公开(公告)日：2023-10-19

申请号：US18028610

申请日：2021-08-11

Applicant: KOA CORPORATION

Inventor： Koichi HIRASAWA ,  Shuhei MATSUBARA ,  Katsuhide NISHIZAWA ,  Keishi NAKAMURA

IPC: G01R1/20 ,  G01R15/14

CPC classification number: G01R1/203 ,  G01R15/146

Abstract: The present invention relates to a jumper element, a shunt resistor apparatus, and a method of adjusting characteristic of a shunt resistor apparatus for current detection. The jumper element (10) for constituting the shunt resistor apparatus for current detection is made of conductive metal material. The jumper element (10) includes: a body structure (11) that can be coupled to a resistance element (5) constituting a part of the shunt resistor apparatus; and a protrusion (12) formed on a side portion of the body structure (11), wherein the protrusion (12) is located so as not to overlap the resistor element (5).