Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–13 of 13 inventors

Rank Inventor Primary Company Patents
1 Akio Yasuda Sony 15
2 Tadao Inoue Fujitsu Limited 4
3 Takashi Okuyama Yamaha Marine 3
3 Shinsuke Fujioka Nihon Nohyaku Co. 3
#5 Katsumi Sakitani Daikin Industries 2
#6 Kozo Machiya Nihon Nohyaku Co. 1
#6 Miyako Nakano Wako Pure Chemical Industries 1
#6 Yasuo Araki Nihon Bayer Agrochem K. K. 1
#6 Toshihiko Shigenari Daiso Co. 1
#6 Yoshinobu Yamamoto Nippon Shokubai Co. 1
#6 Nobuyuki Hayashi Hitachi Chemical Company 1
#6 Osamu Sanpei Nihon Nohyaku Co. 1
#6 Tomokazu Hino Nihon Nohyaku Co. 1