Ignition coil and method for manufacturing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 1, 2008
Grant Date -
Jan 31, 2008
app pub date -
Jul 13, 2007
filing date -
Jul 27, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An ignition coil includes primary and secondary coils. The primary coil includes a primary spool and a primary winding wound on the spool. The primary winding has a second winding layer wound around a first winding layer. The primary spool has first and second overhangs protruding radially outwardly from a first spool end portion of the primary spool. The first overhang is positioned away from the second overhang toward a second spool end portion. The first winding layer has a first winding end portion extending from the first winding layer through a space between the first overhangs, and being wound on the first spool end portion between the first and second overhangs. The second winding layer has a second winding end portion extending from the second winding layer between the first overhangs, and being wound on the first spool end portion between the first and second overhangs.
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 | |
---|---|---|
DENSO CORPORATION | 1-1 SHOWA-CHO KARIYA AICHI 448-8664 |
International Classification(s)

- 2007 Application Filing Year
- F02P Class
- 157 Applications Filed
- 95 Patents Issued To-Date
- 60.51 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Fujiyama, Norihito | Obu, JP | 11 | 34 |
# of filed Patents : 11 Total Citations : 34 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F02P Class
- 7.34 % this patent is cited more than
- 17 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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