Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–21 of 21 inventors

Rank Inventor Primary Company Patents
1 Katsumasa Takagi Nisca 3
1 Nobuhiro Kumada Canon 3
3 Kenzo Hiraoka University Of Yamanashi 2
3 Hideaki Ono Fujitsu Limited 2
3 Hidetaka Dobashi Crossfor Co. 2
3 Kenji Baba Hitachi 2
3 Kazuichi Hayashi Tokyo Electron Limited 2
#8 Tadashi Obikane Tokyo Electron Limited 1
#8 Yoshiyuki Noda Sintokogio 1
#8 Sanae Asari Hitachi Ulsi Systems Co. 1
#8 Hideki Isono Hoya 1
#8 Keisuke Yamato Canon 1
#8 Tomohiro Kiriyama Konica Minolta 1
#8 Takaharu Mae Sumitomo Electric Industries 1
#8 Kouichi Kitta Nisca 1
#8 Misao Kobayashi Nisca 1
#8 Junichi Hagihara Tokyo Electron Limited 1
#8 Masaomi Imai Terumo Kabushiki Kaisha 1
#8 Eigo Sarashina Sumitomo Electric Industries 1
#8 Kotaro Miyatani Tokyo Electron Limited 1
#8 Nobuo Ishii Tokyo Electron Limited 1