Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Aki, JP ranks #809 worldwide for total patents filed in 2021, with 181 patents from 81 inventors. Leading employers of inventors based in Aki, JP include Mazda Motor, Fujitsu Limited, Kioxia.

Showing 1–50 of 81 inventors

Rank Inventor Primary Company Patents
1 Kota Matsumoto Mazda Motor 16
2 Tatsuhiro Tokunaga Mazda Motor 11
3 Daisuke Shimo Mazda Motor 8
#4 Yodai Yamaguchi Mazda Motor 6
#4 Keita Arai Mazda Motor 6
#6 Yoshie Kakuda Mazda Motor 5
#6 Tomokuni Kusunoki Mazda Motor 5
#8 Hirotaka Natsume Mazda Motor 4
#8 Yuichiro Tsumura Mazda Motor 4
#8 Akiyoshi Masuda Mazda Motor 4
#8 Daisuke Fukuda Fujitsu Limited 4
#8 Hideki Yamada Kioxia 4
#8 Yasumasa Imamura Mazda Motor 4
#14 Hiroki Morimoto Mazda Motor 3
#14 Keiichi Hiwatashi Mazda Motor 3
#14 Shohei Fujii Tdk 3
#14 Shuma Aoki Mazda Motor 3
#14 Koji Miyamoto Mazda Motor 3
#14 Masataka Sumita Mazda Motor 3
#14 Atsushi Yamasaki Mazda Motor 3
#21 Shinji Fujihira Mazda Motor 2
#21 Hidemasa Tomiyori Mazda Motor 2
#21 Yuki Ikawa Mazda Motor 2
#21 Hirofumi Ebisumoto Mazda Motor 2
#21 Kenta Honda Mazda Motor 2
#21 Masaaki Bessho Mazda Motor 2
#21 Takuya Sugisawa Mazda Motor 2
#21 Naoki Nobutani Mazda Motor 2
#21 Yohei Iwashita Mazda Motor 2
#21 Mitsutaka Yamaya Mazda Motor 2
#21 Michiya Mizokane Mazda Motor 2
#21 Hiroaki Takeshita Mazda Motor 2
#21 Akihiro Tatara Mazda Motor 2
#21 Hideki Sanai Mazda Motor 2
#21 Keitaro Kageyama Mazda Motor 2
#21 Takahiro Izaki Mazda Motor 2
#21 Toshiyuki Koga Kabushiki Kaisha Toshiba 2
#21 Shinichi Hikitani Mazda Motor 2
#39 Shohei Hanaoka Mazda Motor 1
#39 Ryuji Kuwano Delta Tooling Co. 1
#39 Hidetoshi Hashimoto Mazda Motor 1
#39 Souichirou Chabata Mazda Motor 1
#39 Takefumi Takada Mazda Motor 1
#39 Junki Tamaru Mazda Motor 1
#39 Tsukasa Sori Mazda Motor 1
#39 Yuichiro Yamane Mazda Motor 1
#39 Takahiro Kumagai 1
#39 Shigeo Hirata Mazda Motor 1
#39 Yuta Hiramoto Delta Kogyo Co. 1
#39 Junichi Kubo Nippon Oil 1