公开(公告)号：US10969408B2

公开(公告)日：2021-04-06

申请号：US16313366

申请日：2017-05-25

Applicant: KOA CORPORATION

Inventor： Soya Miyajima ,  Ryo Osawa ,  Yoji Kobayashi

IPC: G01R31/02 ,  G01R15/14 ,  H01C1/144 ,  H01C13/00 ,  G01R15/00 ,  G01R1/20 ,  G01R19/00

Abstract: Provided is a current measuring device for measuring current, including a conductor adapted to pass current therethrough, at least a pair of voltage sensing terminals arranged apart from each other on the conductor in the current flowing direction, and a substrate to which the voltage sensing terminals are connected. The substrate is long in the current flowing direction, and connection portion of the substrate that are connected to the voltage sensing terminals are arranged closer to one end side of the substrate in the lengthwise direction.

公开(公告)号：US10859600B2

公开(公告)日：2020-12-08

申请号：US16317437

申请日：2017-06-07

Applicant: KOA CORPORATION

Inventor： Tamotsu Endo ,  Ryo Osawa

IPC: G01R1/20 ,  G01R31/28

Abstract: Provided is a current measuring device including a first wire member formed of a conductive metal and a second wire member formed of a conductive metal, the second wire member partially including a resistive element metal, in which the first wire member and the second wire member are arranged in parallel with an insulator sandwiched therebetween in a portion where at least the resistive element metal is present.

公开(公告)号：US20180156847A1

公开(公告)日：2018-06-07

申请号：US15737930

申请日：2016-06-27

Applicant: KOA CORPORATION

Inventor： Keishi Nakamura ,  Ryo Osawa ,  Susumu Toyoda ,  Kenji Kameko ,  Kaoru Shinoda

IPC: G01R19/00

CPC classification number: G01R19/0092 ,  G01R1/203 ,  G01R31/42

Abstract: Provided is a compact and easily mountable current detection device in which a resistor body can be easily inserted in a current path, and a voltage value produced by the current can be easily obtained. The current detection device comprises a unit metal member (11A, 11B, 11C) that pass a current to be detected, a pair of voltage terminals (14, 14), which obtain a voltage signal from the unit metal member, and a holding member (16) that holds a plural of the unit metal members in parallel. A plural of the unit metal members (11A, 11B, 11C) is interposed between the holding member (16) and the board (17) on which a plural of wiring patterns is formed, and each pair of the voltage terminals (14, 14) of the unit metal member is connected to each wiring pattern formed on the board.