Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–13 of 13 inventors

Rank Inventor Primary Company Patents
1 Yoshio Hagihara Olympus 3
1 Haruo Yoda Hitachi 3
3 Hirotami Koike Topcon 1
3 Kiminobu Numata Olympus Medical Systems 1
3 Yoshio Honma Hitachi 1
3 Akihiko Hamanaka Jvckenwood 1
3 Goro Kitsukawa Hitachi 1
3 Tetsurou Hoshiba Nittetsu Mining Co. 1
3 Makoto Hamano Jnc 1
3 Hidemi Itakura Kabushiki Kaisha Toshiba 1
3 Masahisa Kousaka Hoya Lens Thailand 1
3 Shigeo Mikoshiba Hitachi 1
3 Hiroshi Ichiyama Olympus Medical Systems 1