Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Hiroshi Suizu Mitsui Chemicals 2
1 Akinori Nagatomo Mitsui Chemicals 2
1 Hideyuki Akieda Mitsui Toatsu Chemicals, Incorporated 2
#4 Toshikatsu Mitsunaga Denka Company Limited 1
#4 Takayuki Inoue Fujisawa Pharmaceutical Co. 1
#4 Fumiya Kobayashi Tokyo Electron Limited 1
#4 Shinsuke Ito Mitsui Chemicals 1
#4 Kazuyoshi Tsuruta Denki Kagaku Kogyo 1