Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kitayama, JP ranks #24,378 worldwide for total patents filed all time, with 47 patents from 5 inventors. Leading employers of inventors based in Kitayama, JP include Sekisui Chemical Co..

Showing 1–5 of 5 inventors

Rank Inventor Primary Company Patents
1 Kouhei Yamaguchi Sekisui Chemical Co. 19
2 Ryuta Tsunoda Sekisui Chemical Co. 16
3 Izumi Matsumoto Sekisui Chemical Co. 8
#4 Susumu Hayase Sekisui Chemical Co. 2
#4 Hideto Yoshimoto Sekisui Chemical Co. 2