Inventor · Aki, JP

Shingo Shigihama

4Patents
4h-index
10Co-inventors
43Inventor score

Filing activity: Mar 31, 1997 → May 30, 2002

Most-cited inventions

PatentTitleAreaCited byStatus
US6357288B1 Failure diagnosis system for evaporation control system Mechanical Engineering; Lighting; Heating 20 Expired
US5996400A Diagnostic system for detecting leakage of fuel vapor from purge system Mechanical Engineering; Lighting; Heating 18 Expired
US6035835A Valve operation verification system for verifying valve operation of valve disposed in hot gas flow passage Mechanical Engineering; Lighting; Heating 11 Expired
US6679111B2 Malfunction diagnostic apparatus for evaporated fuel purge system Mechanical Engineering; Lighting; Heating 7 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.