Ryozo Echigo
1Patents
0Active
1Granted
20Portfolio score
Filing activity: Jul 21, 1982 → Jul 21, 1982
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4479535A | Recuperative radiant tube | Emerging Cross-Sectional Technologies | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.