Ichiji Shima
3Patents
0Active
3Granted
26Portfolio score
Filing activity: Jan 15, 1980 → Feb 19, 1982
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4366544A | Judging system for detecting failure of machine | Physics | 1,051 | Expired |
| US4493042A | Bearing failure judging apparatus | Physics | 71 | Expired |
| US4524355A | Abnormal vibration monitor | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.