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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Iwakuni, JP ranks #4,263 worldwide for total patents filed in 2021, with 26 patents from 17 inventors. Leading employers of inventors based in Iwakuni, JP include Mitsui Chemicals, Mazda Motor, Toyo Jidoki Co..

Showing 1–17 of 17 inventors

Rank Inventor Primary Company Patents
1 Kazuo Kohmura Mitsui Chemicals 6
2 Shuji Muraoka Mazda Motor 3
3 Tohru Yoshikane Toyo Jidoki Co. 2
3 Tsuneaki Biyajima Mitsui Chemicals 2
#5 Akihiro Aoki Teijin Limited 1
#5 Shinichiro Shoji Teijin Limited 1
#5 Hiroshi Aoyagi Teijin Limited 1
#5 Susumu Honda Teijin Limited 1
#5 Asami Kanematsu Teijin Limited 1
#5 Katsushige Marui Toyobo Co. 1
#5 Yutaka Matsuoka Yazaki 1
#5 Sadahiko Matsuura Mitsui Chemicals 1
#5 Takeshi Muranaka Mitsui Petrochemical Industries 1
#5 Atsuo Kumano Toyo Boseki Kabushiki Kaisha 1
#5 Guemju Cha Teijin Limited 1
#5 Kakue Nakamoto Toyo Jidoki Co. 1
#5 Chihiro Araki Kabushiki Kaisha Top 1