20680 inventors at Fujitsu filed 38546 US patents between 1976 and 2020. These IBM inventors belong to 36 different countries.
The donut chart below shares the percentage contribution of inventors from the top ten countries in Fujitsu US patent filing.
Countries of Inventors of Fujitsu US Patents
| Country | Inventor | Patent | % of Inventors |
| Japan | 19042 | 118666 | 92.07 |
| United States Of America | 1092 | 7446 | 5.28 |
| China | 167 | 1542 | 0.81 |
| United Kingdom | 96 | 696 | 0.46 |
| Germany | 92 | 200 | 0.44 |
| Taiwan | 34 | 360 | 0.16 |
| Canada | 34 | 240 | 0.16 |
| Korea (South) | 33 | 326 | 0.16 |
| India | 14 | 41 | 0.07 |
| France | 13 | 43 | 0.06 |
| Australia | 8 | 15 | 0.04 |
| Spain | 6 | 25 | 0.03 |
| Singapore | 6 | 12 | 0.03 |
| Sweden | 5 | 7 | 0.02 |
| Hong Kong (S.A.R.) | 4 | 104 | 0.02 |
| Denmark | 4 | 6 | 0.02 |
| Belgium | 3 | 22 | 0.01 |
| Thailand | 3 | 14 | 0.01 |
| Austria | 2 | 16 | 0.01 |
| Malaysia | 2 | 6 | 0.01 |
| Netherlands | 2 | 3 | 0.01 |
| Switzerland | 2 | 3 | 0.01 |
| Mexico | 2 | 2 | 0.01 |
| Mali | 1 | 14 | 0.00 |
| Russian Federation | 1 | 11 | 0.00 |
| Tunisia | 1 | 6 | 0.00 |
| Israel | 1 | 3 | 0.00 |
| South Africa | 1 | 2 | 0.00 |
| New Zealand | 1 | 1 | 0.00 |
| Bangladesh | 1 | 1 | 0.00 |
| Viet Nam | 1 | 1 | 0.00 |
| Poland | 1 | 1 | 0.00 |
| Sri Lanka | 1 | 1 | 0.00 |
| Slovenia | 1 | 1 | 0.00 |
| Bulgaria | 1 | 1 | 0.00 |
| Iran | 1 | 1 | 0.00 |