Engine and engine-operated working machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 12, 2017
Issued Date -
N/A
app pub date -
Aug 14, 2012
filing date -
Aug 19, 2011
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
An engine is configured such that, during the starting of the engine, when it is being detected that throttle opening has been set at a starting position, if it is detected that the engine speed has exceeded a predetermined speed slightly lower than a speed when a centrifugal clutch becomes an engaged state, a control unit retards the ignition timing from a general angle to a first angle BTDC, and then advances the ignition timing to a second angle at predetermined intervals, and holds the ignition timing at the second angle for a predetermined time period, thereby preventing the engine from stopping due to fouling on the spark plug while suppressing the engine speed at the speed when the centrifugal clutch becomes the engaged state, or less.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KOKI HOLDINGS CO LTD | 15-1 KONAN 2-CHOME MINATO-KU TOKYO 1086018 |
International Classification(s)

- 2012 Application Filing Year
- B27B Class
- 90 Applications Filed
- 68 Patents Issued To-Date
- 75.56 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ishida, Shigetoshi | Ibaraki, JP | 17 | 102 |
# of filed Patents : 17 Total Citations : 102 | |||
Mezaki, Akira | Ibaraki, JP | 1 | 13 |
# of filed Patents : 1 Total Citations : 13 |
Cited Art Landscape
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Patent Citation Ranking
- 6 Citation Count
- B27B Class
- 23.72 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

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