Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kiso, JP ranks #12,536 worldwide for total patents filed all time, with 141 patents from 12 inventors. Leading employers of inventors based in Kiso, JP include Seiko Epson, Hitachi, Unknown.

Showing 1–12 of 12 inventors

Rank Inventor Primary Company Patents
1 Shun Oya Seiko Epson 70
2 Katsuko Aoki Seiko Epson 23
3 Nobuhiro Karito Seiko Epson 15
#4 Tsutomu Isono Hitachi 10
#5 Kenichi Okuhara Seiko Epson 9
#6 Tsukasa Sakurada Unknown 5
#7 Eisuke Ishihara Kumiai Chemical Industry Co. 3
#8 Keiko Motomatsu New Japan Chemical Co. 2
#9 Hiroshi Sato Akita Prefecture 1
#9 Yutaka Wakiyama Asahi Kasei Kogyo Co. 1
#9 Toyomi Tanaka Nakajima Seisakusho Co. 1
#9 Genji Akiba Tanaka Kogyo Co. 1