Toshima, JP ranks #5,383 worldwide for total patents filed in 2021, with 19 patents from 10 inventors. Leading employers of inventors based in Toshima, JP include IBM, Essilor International, Nichia.
Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Setsuko Masuda | IBM | 7 |
| 2 | Daisuke Takuma | IBM | 4 |
| 3 | Guillaume Cantagrel | Essilor International | 1 |
| 3 | Masaki Omori | Nichia | 1 |
| 3 | Eigo MATSUURA | Toshiba Memory | 1 |
| 3 | Hideaki Hata | — | 1 |
| 3 | Hiroki Urabe | Taisho Pharmaceutical Co. | 1 |
| 3 | Tomohiro Aoyagi | Fujitsu Limited | 1 |
| 3 | Yasushi Shioya | Kao | 1 |
| 3 | Norikazu Otake | Banyu Pharmaceutical Co. | 1 |