Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–5 of 5 inventors

Rank Inventor Primary Company Patents
1 Michiei Nakamura Dainichiseika Color & Chemicals Mfg. Co. 3
1 Masayuki Hosono Smc 3
1 Kenji Waragai Smc 3
#4 Shin Kiyokawa Unknown 1
#4 Hiroyuki Mikami Hitachi 1