Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Hiroshi Kawahito Sharp Kabushiki Kaisha 4
2 Nobutsuna Motohashi Koyo Seiko Co. 2
3 Tadahiro Terada Koyo Seiko Co. 1
3 Tsunekazu Saigo Sumitomo Special Metals Co. 1
3 Shigeki Hayashida Sharp Kabushiki Kaisha 1
3 Toru Sakata Elpida Memory 1