Permanent Magnet for Low Eddy-Current Loss of Permanent Magnet Motor and Permanent Magnet Motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 15, 2024
app pub date -
May 10, 2022
filing date -
May 11, 2021
priority date (Note) -
Published
status (Latency Note)
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Abstract
Some embodiments of the present disclosure provide a permanent magnet for low eddy-current loss of a permanent magnet motor and a permanent magnet motor. The permanent magnet includes a first magnetic pole surface, a second magnetic pole surface, four side surfaces, and a plurality of embedded electrical insulation layers. The first magnetic pole surface is basically orthogonal to a magnetization direction of the permanent magnet. The second magnetic pole surface is parallel to the first magnetic pole surface. The plurality of embedded electrical insulation layers are parallel to the magnetization direction of the permanent magnet; and at least one edge of each embedded electrical insulation layer is neither parallel nor perpendicular to the magnetization direction of the permanent magnet.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
YANTAI DONGXING MAGNETIC MATERIALS INC | YANTAI CITY 265500 |
International Classification(s)

- 2022 Application Filing Year
- H02K Class
- 2937 Applications Filed
- 1114 Patents Issued To-Date
- 37.93 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
DING, Kaihong | Yantai, Shandong, CN | 31 | 7 |
# of filed Patents : 31 Total Citations : 7 | |||
LI, Xiaoqun | Yantai, Shandong, CN | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
LIANG, Feng | Yantai, Shandong, CN | 376 | 3176 |
# of filed Patents : 376 Total Citations : 3176 | |||
PENG, Zhongjie | Yantai, Shandong, CN | 44 | 17 |
# of filed Patents : 44 Total Citations : 17 |
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Patent Citation Ranking
- 0 Citation Count
- H02K 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 |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 15, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 15, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 15, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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