US Patent No: 8,193,666
Number of patents in Portfolio can not be more than 2000
Motor and compressor technology
Stats
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Jun 5, 2012
Issued date -
Oct 28, 2009
filing date -
12/607,133
serial no -
In Force
status
Importance
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Abstract
An interior permanent magnet type brushless direct current (BLDC) motor includes a stator having a plurality of slots. The BLDC motor also includes a rotor positioned in the stator and that is rotatable with respect to the stator. The rotor has a rotor core, a plurality of permanent magnets inserted in the rotor core, a plurality of vent holes positioned between the center of the rotor core and the permanent magnets, and a plurality of coupling holes positioned between the permanent magnets and a periphery of the rotor core.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 7,843,101 Interior permanent magnet electric motor including a rotor having circumferential surface portions with defined curve profiles | 5 | 2006 | |
| 2007/0126,304 PERMANENT MAGNET ROTATING MACHINE | 7 | 2006 | |
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| 7,119,507 Brushless DC motor and brushless DC motor controller | 8 | 2003 | |
| 2006/0145,556 Motor | 8 | 2004 | |
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| 6,208,054 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine | 38 | 1997 | |
| 7,425,786 Permanent magnet type rotating electrical machine | 6 | 2005 | |
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| 7,056,104 Compressor unit with an electrical circuit device connected to the main body and an electrical power connector | 3 | 2003 | |
| 7,049,518 Shielded cable, process for assembling the same and compressor unit having the same | 2 | 2004 | |
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| 2001/0014,293 Compressor with scroll compression mechanism | 2 | 2000 | |
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| 7,484,945 Compressor for refrigerator-freezer having a porous member | 1 | 2004 | |
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| 6,703,748 Brushless DC motor and refrigerant compressor employing the motor | 10 | 2002 | |
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| 5,508,576 Rotor for brushless electromotor | 41 | 1994 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Dec 5, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 5, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 5, 2023 |
| 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 |
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| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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