Toshima, JP ranks #6,332 worldwide for total patents filed in 2017, with 15 patents from 7 inventors. Leading employers of inventors based in Toshima, JP include IBM, Fujitsu Limited, Kabushiki Kaisha Toshiba.
Showing 1–7 of 7 inventors
| Rank ↑ | Inventor ↕ | Primary Company ↕ | Patents ↕ |
|---|---|---|---|
| 1 | Daisuke Takuma | IBM | 7 |
| 2 | Setsuko Masuda | IBM | 3 |
| 3 | Ryota Kamakari | Fujitsu Limited | 1 |
| 3 | Kie Kubo | Kabushiki Kaisha Toshiba | 1 |
| 3 | Kei Kasai | Kabushiki Kaisha Toshiba | 1 |
| 3 | Tomomichi Chonan | Taisho Pharmaceutical Co. | 1 |
| 3 | Yasushi Shioya | Kao | 1 |