Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Nobuyuki Baba Ricoh Company 1
1 Masakazu Sato Taisho Pharmaceutical Co. 1
1 Tadashi Matsuo Toppan Printing Co. 1
1 Shoei Ebisawa Dainippon Ink And Chemicals 1