公开(公告)号：US11791073B2

公开(公告)日：2023-10-17

申请号：US17480982

申请日：2021-09-21

Applicant: SUNCALL CORPORATION

Inventor： Naoya Ashida ,  Kenji Murakami

IPC: H01C13/00

CPC classification number: H01C13/00

Abstract: A shunt resistor the resistive value of which can be lowered simply and easily has: a first resistive body, two base materials that sandwich the first resistive body therebetween and are joined by a welding to the first resistive body, and a second resistive body joined by a welding to the two base materials at different positions from the first resistive body. In addition, the second resistive body can come into contact with the first resistive body.

公开(公告)号：US11287449B2

公开(公告)日：2022-03-29

申请号：US17144848

申请日：2021-01-08

Applicant: SUNCALL CORPORATION

Inventor： Kenji Murakami

IPC: G01R15/14 ,  H01C1/144 ,  H01C13/00 ,  G01R1/20 ,  G01R19/00 ,  H01C13/02 ,  B60K6/22

Abstract: A shunt resistor having sufficient bonding strength includes a resistor, a pair of bases which are integrally formed with the resistor so as to sandwich the resistor, recessed holes which are respectively formed in the bases, and measurement terminals which are inserted into the recessed holes and are affixed to the bases. Each measurement terminal has a shaft part and a flange part that protrudes outwardly in the circumferential direction of the shaft part. Each recessed hole is formed to have a diameter smaller than the diameter of the flange part, and the shaft parts are respectively inserted into the recessed holes.

公开(公告)号：US20220037064A1

公开(公告)日：2022-02-03

申请号：US17480982

申请日：2021-09-21

Applicant: SUNCALL CORPORATION

Inventor： Naoya Ashida ,  Kenji Murakami

IPC: H01C13/00

Abstract: A shunt resistor the resistive value of which can be lowered simply and easily has: a first resistive body, two base materials that sandwich the first resistive body therebetween and are joined by a welding to the first resistive body, and a second resistive body joined by a welding to the two base materials at different positions from the first resistive body. In addition, the second resistive body can come into contact with the first resistive body.

公开(公告)号：US10957472B2

公开(公告)日：2021-03-23

申请号：US15765956

申请日：2016-10-12

Applicant: Suncall Corporation

Inventor： Hiroya Kobayakawa ,  Kenji Murakami

IPC: H01C17/28 ,  H01C17/245 ,  G01R1/20 ,  H01C1/014 ,  H01C1/14

Abstract: A manufacturing method of shunt resistor according to the present invention includes a step of calculating a difference between an initial resistance value and a desired resistance value as a resistance value to be adjusted, a step of providing a plurality of recess forming members capable of forming recesses each having a characteristic size in the surface of a resistive alloy plate, a recess determining step of determining the size and the number of the recesses necessary to be formed at the surface of the resistive alloy plate, and a recess forming step of forming the recesses according to the size and the number determined in the recess determining step by using the corresponding recess forming members.

公开(公告)号：US12080453B2

公开(公告)日：2024-09-03

申请号：US18459188

申请日：2023-08-31

Applicant: Suncall Corporation

Inventor： Naoya Ashida ,  Kenji Murakami

IPC: H01C13/00

CPC classification number: H01C13/00

Abstract: A shunt resistor the resistive value of which can be lowered simply and easily has: a first resistive body, two base materials that sandwich the first resistive body therebetween and are joined by a welding to the first resistive body, and a second resistive body joined by a welding to the two base materials at different positions from the first resistive body. In addition, the second resistive body can come into contact with the first resistive body.

公开(公告)号：US12080452B2

公开(公告)日：2024-09-03

申请号：US17730543

申请日：2022-04-27

Applicant: SUNCALL CORPORATION

Inventor： Yuu Moriyama ,  Kenji Murakami ,  Akio Mugishima

IPC: H01C1/148 ,  G01R1/20 ,  H01C1/14 ,  H01C1/144

CPC classification number: H01C1/148 ,  G01R1/203 ,  H01C1/1406 ,  H01C1/144

Abstract: A shunt resistor having improved temperature characteristics has a resistive body, a pair of base materials integrally formed on the resistive body across the resistive body, and measurement terminals fixed onto the base materials. The base materials have a plurality of cutout portions along a longitudinal direction of the base materials, wherein the plurality of cutout portions do not communicate with each other and are provided in a stepped manner.

公开(公告)号：US11488750B2

公开(公告)日：2022-11-01

申请号：US17084803

申请日：2020-10-30

Applicant: Suncall Corporation

Inventor： Hiroya Kobayakawa ,  Kenji Murakami

IPC: H01C17/245 ,  G01R1/20 ,  H01C1/014 ,  H01C1/14 ,  H01C1/148 ,  H01C17/28

Abstract: A manufacturing method of shunt resistor according to the present invention includes a step of calculating a difference between an initial resistance value and a desired resistance value as a resistance value to be adjusted, a step of providing a plurality of recess forming members capable of forming recesses each having a characteristic size in the surface of a resistive alloy plate, a recess determining step of determining the size and the number of the recesses necessary to be formed at the surface of the resistive alloy plate, and a recess forming step of forming the recesses according to the size and the number determined in the recess determining step by using the corresponding recess forming members.

公开(公告)号：US20210132119A1

公开(公告)日：2021-05-06

申请号：US17144848

申请日：2021-01-08

Applicant: SUNCALL CORPORATION

Inventor： Kenji Murakami

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

Abstract: A shunt resistor having sufficient bonding strength includes a resistor, a pair of bases which are integrally formed with the resistor so as to sandwich the resistor, recessed holes which are respectively formed in the bases, and measurement terminals which are inserted into the recessed holes and are affixed to the bases. Each measurement terminal has a shaft part and a flange part that protrudes outwardly in the circumferential direction of the shaft part. Each recessed hole is formed to have a diameter smaller than the diameter of the flange part, and the shaft parts are respectively inserted into the recessed holes.

公开(公告)号：US10928424B2

公开(公告)日：2021-02-23

申请号：US15990064

申请日：2018-05-25

Applicant: SUNCALL CORPORATION

Inventor： Kenji Murakami

IPC: H01C1/144 ,  H01C13/00 ,  G01R1/20 ,  G01R19/00 ,  H01C13/02 ,  G01R15/14 ,  B60K6/22

Abstract: A shunt resistor having sufficient bonding strength includes a resistor, a pair of bases which are integrally formed with the resistor so as to sandwich the resistor, recessed holes which are respectively formed in the bases, and measurement terminals which are inserted into the recessed holes and are affixed to the bases. Each measurement terminal has a shaft part and a flange part that protrudes outwardly in the circumferential direction of the shaft part. Each recessed hole is formed to have a diameter smaller than the diameter of the flange part, and the shaft parts are respectively inserted into the recessed holes.

公开(公告)号：US12112870B2

公开(公告)日：2024-10-08

申请号：US18459217

申请日：2023-08-31

Applicant: Suncall Corporation

Inventor： Naoya Ashida ,  Kenji Murakami

IPC: H01C13/00

CPC classification number: H01C13/00

Abstract: A shunt resistor the resistive value of which can be lowered simply and easily has: a first resistive body, two base materials that sandwich the first resistive body therebetween and are joined by a welding to the first resistive body, and a second resistive body joined by a welding to the two base materials at different positions from the first resistive body. In addition, the second resistive body can come into contact with the first resistive body.