Ignition coil and method for manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7392799
APP PUB NO 20080022985A1
SERIAL NO

11826272

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
DENSO CORPORATION1-1 SHOWA-CHO KARIYA AICHI 448-8664

International Classification(s)

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  • 2007 Application Filing Year
  • F02P Class
  • 157 Applications Filed
  • 95 Patents Issued To-Date
  • 60.51 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2007200820092010201120122013201420150255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiyama, Norihito Obu, JP 11 34

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Patent Citation Ranking

  • 1 Citation Count
  • F02P Class
  • 7.34 % this patent is cited more than
  • 17 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges8771652101 - 1011 - 2021 - 3031 - 4051 - 600510152025303540455055606570758085

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