Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Takeshi Takaira Yanmar Holdings Co. 1
1 Koichi Tokunaga Mitsui Chemicals 1
1 Kohei Okazaki Yanmar Holdings Co. 1
1 Umpei Nonaka Yanmar Holdings Co. 1