Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kitakata, JP ranks #24,998 worldwide for total patents filed all time, with 45 patents from 14 inventors. Leading employers of inventors based in Kitakata, JP include Kabushiki Kaisha Toshiba, Showa Denko K.K., Resonac.

Showing 1–14 of 14 inventors

Rank Inventor Primary Company Patents
1 Hiroshi Mitsuhashi Kabushiki Kaisha Toshiba 16
2 Sadao Kokubo Showa Denko K.K. 7
3 Takuya ARAYAMA Resonac 3
3 Suzuki Kenji Applied Materials 3
3 Tomoo Uchida Showa Denko K.K. 3
#6 Kengi Suzuki Showa Aluminum Industries K.K. 2
#6 Toshiharu Fukai 2
#6 Tadanao Itoh Showa Aluminum Industries K.K. 2
#6 Yoshiaki Sutou Showa Denko 2
#10 Masayuki Natsui Showa Denko K.K. 1
#10 Mitsuyoshi Takahashi Showa Denko 1
#10 Ryousuke Shimao Showa Denko K.K. 1
#10 Yasuhide Odashima Showa Denko K.K. 1
#10 Yokoi Katsumi 1