Hajima Ishimaru
1Patents
0Active
1Granted
22Portfolio score
Filing activity: Jul 19, 1989 → Jul 19, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4941224A | Electrostatic dust collector for use in vacuum system | Chemistry; Metallurgy | 34 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.