Inventor · Iruma, JP

Fumio Sumiyoshi

1Patents
1h-index
7Co-inventors
25Inventor score

Filing activity: Nov 29, 1991 → Nov 29, 1991

Most-cited inventions

PatentTitleAreaCited byStatus
US5386670A Method for manufacturing system floor and floor base for system floor Fixed Constructions 67 Expired

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