Ryoichi Hashida
6Patents
2h-index
32Co-inventors
43Inventor score
Filing activity: Dec 15, 1989 → Mar 13, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5298649A | Naphthalene derivative | Chemistry; Metallurgy | 2 | Expired |
| US5134111A | Naphthalene derivative | Chemistry; Metallurgy | 2 | Expired |
| US5262565A | Naphthalene derivatives | Chemistry; Metallurgy | 1 | Expired |
| US5237091A | Naphthalene derivatives | Chemistry; Metallurgy | 1 | Expired |
| US5319139A | Naphthalene derivatives | Chemistry; Metallurgy | 1 | Expired |
| US5527948A | Naphthalene derivative | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.