Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–14 of 14 inventors

Rank Inventor Primary Company Patents
1 Seiji Miura Hitachi 7
2 Masaaki Hibino Brother Kogyo 5
3 Ryoichi Ichikawa Nihon Dempa Kogyo Co. 3
#4 Tomohisa Handa Mazda Motor 1
#4 Noriyoshi Sahashi Mazda Motor 1
#4 Kouji Sakota Seki Kogyo Co. 1
#4 Takeshi Hiramatsu Sony 1
#4 Masatoshi Shinomori Mazda Motor 1
#4 Shiro Otsuzuki Mitsui Chemicals 1
#4 Eiichi Yamamoto Okamoto Machine Tool Works 1
#4 Keiji Araki Mazda Motor 1
#4 Masatoshi Seto Mazda Motor 1
#4 Junya Fujii Jms Co. 1
#4 Yuka Ohe Mazda Motor 1