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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Jul 18, 2024
filing date -
Jul 18, 2024
priority date (Note) -
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Abstract
A tracking current is separated easily. A current measurement apparatus 10 according to the present disclosure is configured to measure a tracking current. The current measurement apparatus 10 includes a magnetic core 11 that can be disposed so as to enclose wiring 100 to be measured, and first and second coils L1 and L2 wound on the magnetic core 11. The number of turns of the second coil L2 is smaller than that of the first coil L1. The second coil L2 is configured to be able to detect the tracking current flowing through the wiring 100.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | A | JP2025037676 | Sep 06, 2023 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | 電流測定装置 | Mar 18, 2025 | |||
CN | A | CN119575236 | Jul 19, 2024 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED APPLICATION FOR A PATENT FOR INV. | Current measuring device | Mar 07, 2025 | |||
EP | A1 | EP4521122 | Jul 22, 2024 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | CURRENT MEASUREMENT APPARATUS | Mar 12, 2025 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
YOKOGAWA ELECTRIC CORPORATION | 2-9-32 NAKACHO MUSASHINO-SHI TOKYO 1808750 JAPAN | |
YOKOGAWA TEST & MEASUREMENT CORPORATION | 9-32 NAKACHO 2-CHOME MUSASHINO-SHI TOKYO 180-8750 |
International Classification(s)

- 2024 Application Filing Year
- G01R Class
- 2121 Applications Filed
- 109 Patents Issued To-Date
- 5.14 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Miyashita, Nobuhiko | Tokyo, JP | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Murakami, Kenji | Tokyo, JP | 121 | 1032 |
# of filed Patents : 121 Total Citations : 1032 |
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Patent Citation Ranking
- 0 Citation Count
- G01R Class
- 0 % this patent is cited more than
- < 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Sep 6, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 6, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 6, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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