SHINKOSHA CO., LTD.
6Patents
2Active
6Granted
34Portfolio score
Filing activity: Nov 9, 1990 → Mar 27, 2015 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5262892A | Optical isolator | Physics | 19 | Expired |
| US6181850A | Optical device | Physics | 19 | Expired |
| US5151955A | Optical isolator | Physics | 17 | Expired |
| US5855668A | Surface treating method of single crystal | Electricity | 2 | Expired |
| US7791886B2 | Heat-dissipating structure for an optical isolator | Emerging Cross-Sectional Technologies | 1 | Active |
| US9933637B2 | Heat-dissipating structure for optical isolator | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.