Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Tsushima, JP ranks #9,162 worldwide for total patents filed in 2021, with 9 patents from 4 inventors. Leading employers of inventors based in Tsushima, JP include Ngk Insulators, Aisan Kogyo Kabushiki Kaisha, Kitagawa Industries Co..

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Yuji Katsuda Ngk Insulators 5
2 Koji Yoshikawa Aisan Kogyo Kabushiki Kaisha 2
3 Takeaki Morizono Aisan Kogyo Kabushiki Kaisha 1
3 Masaru Yagi Kitagawa Industries Co. 1