Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kurobe, JP ranks #4,992 worldwide for total patents filed in 2021, with 21 patents from 16 inventors. Leading employers of inventors based in Kurobe, JP include Ykk, Riso Kagaku, Kokusai Gijutsu Kaihatsu Co..

Showing 1–16 of 16 inventors

Rank Inventor Primary Company Patents
1 Masanori Kayahara Ykk 3
1 Atsushi Takata Riso Kagaku 3
3 Legong Ma Ykk 2
#4 KAZUKI HOSOE Ykk 1
#4 Nao Yasuda Ykk 1
#4 Muneyoshi Yokota Ykk 1
#4 Hikaru Okuyama Ykk 1
#4 Yukako Nakamura Ykk 1
#4 Jiro Nozaki Ykk 1
#4 Yoshito Ikeguchi Ykk 1
#4 Masayoshi Kinoshita Ykk 1
#4 Yuji Kirita Ykk 1
#4 Masanori Hirasawa Kokusai Gijutsu Kaihatsu Co. 1
#4 Ryoji Muratsubaki Sugino Machine Limited 1
#4 Masaki Meiwa Ykk 1
#4 Kazuhiro Kanayama Ykk Ap 1