Inventor · Hitachi, JP

Fumihisa Ichikawa

2Patents
2h-index
10Co-inventors
34Inventor score

Filing activity: Feb 16, 1993 → Dec 19, 1994

Most-cited inventions

PatentTitleAreaCited byStatus
US5402297A Commutating type DC circuit breaker arrangement Electricity 25 Expired
US5576580A DC power supply circuit Electricity 23 Expired

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