Ignition device for internal combustion engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7243643
APP PUB NO 20050284454A1
SERIAL NO

11131346

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An ignition device for an internal combustion engine has a spark plug, an ignition coil, a housing and a mounting portion. The spark plug is for discharging a current to ignite an air-fuel mixture in a combustion chamber of the internal combustion engine. The ignition coil is for supplying the current to the spark plug. The housing encloses the spark plug and the ignition coil therein. The housing has a mounting portion to be disposed in a mounting hole provided in a cylinder head of the internal combustion engine. The mounting portion includes a screw portion a non-screw portion. The screw portion is to be screw-fastened to the mounting hole. The non-screw portion is not to be screw-fastened to the mounting hole.

First Claim

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Patent Owner(s)

Patent OwnerAddress
DENSO CORPORATIONKARIYA-CITY AICHI 448-8661

International Classification(s)

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  • 2005 Application Filing Year
  • F02P Class
  • 126 Applications Filed
  • 57 Patents Issued To-Date
  • 45.24 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2005200620072008200920100255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiramatsu, Hiromi Kariya, JP 30 273
Iwami, Atsushi Susono, JP 11 45
Miwa, Tetsuya Nagoya, JP 85 418
Morita, Yoshiki Kariya, JP 8 30

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Patent Citation Ranking

  • 2 Citation Count
  • F02P Class
  • 2.80 % this patent is cited more than
  • 18 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges370198321101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6091 - 100051015202530354045505560657075

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