Inventor
Chiaki Kumada
Inventor
Gifu, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F23Qprimary
F23QIgnition32%
C23CCoating metallic material13%
E04FFinishing work on buildings, e.g. stairs, floors13%
H01TSpark gaps13%
F02PIgnition, other than compression ignition, for internal-combustion engines10%
F02DControlling combustion engines6%
H05BElectric heating6%
H01CResistors3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
7,319,208'Controller and glow plug for controlling energization modes'20087,122,947'Glow plug and spark plug, and manufacturing method therefor'20067,041,938'Glow plug, glow plug mounting structure, and glow plug manufacturing method'20066,843,218'Glow plug energization control apparatus and glow plug energization control method'20056,791,245'Glow plug and spark plug, and manufacturing method therefor'20046,627,854'Heater and glow plug'20036,437,493'Glow plug and spark plug, and manufacturing method therefor'20026,420,683'Glow plug with Ni-Fe-Co resistor'20026,236,148'Spark plug with specific metal shell coating'20016,064,039'Glow plug with small-diameter sheath tube enclosing heating and control coils'20005,767,485'Sheathed heater with a series-connected current regulating resistor comprised of cobalt-copper alloy'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2008Patents assigned to NGK SPARK PLUG CO (11)· patent assignee history
1998Based in Nagoya, JP· patent location history
2000–2008Based in Gifu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NGK SPARK PLUG CO | 11 | 1998–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gifu, JP | 10 | 2000–2008 |
| Nagoya, JP | 1 | 1998 |