Hitoshi Ishiwatari
7Patents
7h-index
9Co-inventors
56Inventor score
Filing activity: Aug 6, 1990 → Dec 23, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5097652A | Drug packing apparatus | Physics | 88 | Expired |
| US6481180B1 | Solid preparation filling apparatus | Physics | 53 | Expired |
| US7293672B2 | Chemical feeding device | Performing Operations; Transporting | 48 | Expired |
| US6792736B1 | Solid drug filling device | Physics | 42 | Expired |
| US7637078B2 | Medicine supply apparatus | Physics | 37 | Expired |
| US6928790B2 | Medication filling apparatus | Physics | 17 | Expired |
| US8220224B2 | Medicine supply apparatus | Physics | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.