Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Kenji Furukawa Chisso 3
2 Masanori Yamamoto Mitsubishi Chemical 2
3 Kazuhiro Nakayama Jgc Catalysts And Chemicals 1
3 Kazuhiko Tsuyama Seiko Epson 1