Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–9 of 9 inventors

Rank Inventor Primary Company Patents
1 Kunio Takeuchi Sanyo Electric Co. 4
1 Kazuhiko Ogawa Murata Machinery 4
3 Yasuhiro Taga Brother Kogyo 2
3 Takaaki Namba Panasonic 2
3 Shin Nakamura Daihachi Chemical Industry Co. 2
#6 Tsutomu Isaka Toyo Boseki Kabushiki Kaisha 1
#6 Hajime Ohashi Yamazaki Mazak 1
#6 Yoshinobu Yokoyama Mitsubishi Electric 1
#6 Toyokazu Kobayashi Murata Kikai 1