Jun-ichi Koiso
7Patents
7h-index
8Co-inventors
45Inventor score
Filing activity: Jun 21, 1989 → Dec 16, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4941022A | Toner recovery device | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4963940A | Toner cartridge for a copying apparatus | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5029316A | Toner seal method and apparatus in electrophotographic recording apparatus | Physics | 19 | Expired |
| US5021830A | Electrostatic recording apparatus | Physics | 14 | Expired |
| USD320810S | Toner cartridge for copier | General | 7 | Expired |
| US5258815A | Fixing apparatus | Physics | 7 | Expired |
| US5020697A | Image recording apparatus having toner reservoir | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.