Direct injection internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Apr 15, 2008
Issued Date -
N/A
app pub date -
Aug 27, 2004
filing date -
Aug 27, 2004
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A direct injection engine has a fuel injection valve that directs a spray of fuel to each side of a spark plug electrode. The fuel mixes with the air to define a region of relatively richer air-fuel mixture and a region of relatively leaner air-fuel mixture. The electrode is positioned within the relatively leaner region.
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classification(s)

- 2004 Application Filing Year
- F02B Class
- 713 Applications Filed
- 257 Patents Issued To-Date
- 36.05 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Suzuki, Yuichi | Iwata, JP | 178 | 2033 |
# of filed Patents : 178 Total Citations : 2033 | |||
Tanaka, Daijiro | Iwata, JP | 15 | 141 |
# of filed Patents : 15 Total Citations : 141 |
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Patent Citation Ranking
- 0 Citation Count
- F02B Class
- 0 % 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 |
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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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