Shunt resistor and shunt resistance device

US12580104B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12580104-B2
Application numberUS-202118031652-A
CountryUS
Kind codeB2
Filing dateJul 14, 2021
Priority dateOct 19, 2020
Publication dateMar 17, 2026
Grant dateMar 17, 2026

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention relates a shunt resistor and a shunt resistance device. The shunt resistor ( 1 ) includes an electrode member ( 10 ). The electrode member ( 10 ) includes a contact portion ( 10 a ) contacting a resistance element ( 5 ), and a slit ( 20 ) formed on the contact portion ( 10 a ).

First claim

Opening claim text (preview).

The invention claimed is: 1 . A shunt resistor comprising an electrode member made of a conductive material, an electrode, and a resistance element, wherein the resistance element has a plate shape with thickness, and has a first resistance element surface and a second resistance element surface opposite to the first resistance element surface in a thickness direction, wherein the electrode member has a contact portion configured to contact the resistance element, wherein the contact portion has a first surface adjacent to the resistance element and a second surface opposite to the first surface, wherein the contact portion, the resistance element, and the electrode are laminated in the thickness direction, so that the first surface is connected to the first resistance element surface, and the electrode is connected to the second resistance element surface, and wherein the electrode member comprising: a slit formed on the contact portion. 2 . The shunt resistor according to claim 1 , wherein the slit is long in a direction perpendicular to a current direction. 3 . The shunt resistor according to claim 1 , wherein the slit is a through hole penetrated from the first surface to the second surface. 4 . A shunt resistance device, comprising: a resistance element, an electrode member, and an electrode; the electrode member comprising a contact portion contacting the resistance element; and a voltage detection wiring connected to the electrode member, wherein the resistance element has a plate shape with thickness, and has a first resistance element surface and a second resistance element surface opposite to the first resistance element surface in a thickness direction, wherein the contact portion has a first surface adjacent to the resistance element and a second surface opposite to the first surface, wherein the contact portion, the resistance element, and the electrode are laminated in the thickness direction, so that the first surface is connected to the first resistance element surface, and the electrode is connected to the second resistance element surface, wherein the electrode member comprises a slit formed on the contact portion, and wherein the voltage detection wiring is arranged in a first wiring area between the slit and a slit-side end portion of the electrode member. 5 . The shunt resistance device according to claim 4 , comprising a current wiring connected to the electrode member, the current wiring being arranged in a second wiring area opposite to the first wiring area across the slit. 6 . The shunt resistance device according to claim 4 , wherein the slit is long in a direction perpendicular to a current direction. 7 . The shunt resistance device according to claim 4 , wherein the slit is a through hole penetrated from the first surface to the second surface.

Assignees

Inventors

Classifications

  • Thin film resistors · CPC title

  • Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop (if no voltage isolation is involved G01R1/203 or G01R19/0092) · CPC title

  • Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts (resistors in general H01C; microwave or radiowave terminations H01P1/26; coupling devices H01R) · CPC title

  • Terminals or tapping points specially adapted for resistors; Arrangements of terminals or tapping points on resistors · CPC title

  • Resistors not provided for elsewhere · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12580104B2 cover?
The present invention relates a shunt resistor and a shunt resistance device. The shunt resistor ( 1 ) includes an electrode member ( 10 ). The electrode member ( 10 ) includes a contact portion ( 10 a ) contacting a resistance element ( 5 ), and a slit ( 20 ) formed on the contact portion ( 10 a ).
Who is the assignee on this patent?
Koa Corp
What technology area does this patent fall under?
Primary CPC classification H01C1/144. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 17 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).