Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hiroshima, JP ranks #220 worldwide for total patents filed in 2017, with 571 patents from 388 inventors. Leading employers of inventors based in Hiroshima, JP include Nissan Motor Co., Sharp Kabushiki Kaisha, Delta Tooling Co..

Showing 1–50 of 388 inventors

Rank Inventor Primary Company Patents
1 Michihiko Matsumoto Nissan Motor Co. 10
2 Akihiro Yamamoto Sharp Kabushiki Kaisha 9
3 Etsunori Fujita Delta Tooling Co. 8
#4 Yumi Ogura Delta Tooling Co. 7
#5 Masaki Chiba Nec 5
#5 Yusuke Fushiwaki Jfe Steel 5
#5 Jiro Agawa Mitsubishi Heavy Industries Machinery Technology 5
#5 Yasuyuki Tanaka Kabushiki Kaisha Toshiba 5
#5 Kazuhiro Nagatsu Mazda Motor 5
#5 Seiji Kawasaki Delta Tooling Co. 5
#11 Kouhei Iwai Mazda Motor 4
#11 Tomohiro Nakagawa Komatsu 4
#11 Michio Hirayama Sumitomo Rubber Industries 4
#11 Masaru Nakagishi Mazda Motor 4
#11 Yuzo Hirakawa Nishikawa Rubber Co. 4
#11 Takashi Kaminaga Mazda Motor 4
#11 Takashi Youso Mazda Motor 4
#11 Masahiro Naito Murata Manufacturing Co. 4
#11 Akihide Takami Mazda Motor 4
#11 Tatsuhiko Iwasaki Mazda Motor 4
#11 Shinya Masaoka Chugoku Electric Power Co. 4
#22 Shinya Goto Denso 3
#22 Masakazu Ito Toyota 3
#22 Kazushige Koiwai Kobelco Construction Machinery Co. 3
#22 Toshiaki Nishimoto Hitachi 3
#22 Kenji Tanimura Mazda Motor 3
#22 Kazuhiro Ueda Kobelco Construction Machinery Co. 3
#22 Hiroto Kawano Mazda Motor 3
#22 Yasutaka Seimoto Mitsubishi Heavy Industries Machinery Technology 3
#22 Toru Takeyoshi Mazda Motor 3
#22 Junsou Sasaki Mazda Motor 3
#22 Keizo Kawasaki Mazda Motor 3
#22 Ichiro Wada Unicharm 3
#22 Hisashi Okazawa Mazda Motor 3
#22 Kazutoshi Yokoo Mitsubishi Heavy Industries Compressor 3
#22 Masahiko Fujimoto Mazda Motor 3
#22 Takanori Tsubaki Mazda Motor 3
#22 Makoto Otsubo Denso 3
#22 Mitsuhiro Abe Honda Motor Co. 3
#22 Masanori Minamisawa Mazda Motor 3
#22 Masakazu Ozaki Kobelco Construction Machinery Co. 3
#22 Kenji Maruyama Fujitsu Limited 3
#22 Tamami Sato Mazda Motor 3
#22 Tadashi Okiyama Jms Co. 3
#22 Masahisa Yamakawa Mazda Motor 3
#46 Toshiharu Ikeda Mazda Motor 2
#46 Osamu Sunahara Mazda Motor 2
#46 Mizuho Wada Sakai Chemical Industry Co. 2
#46 Mitsunori Hirozawa Kobelco Construction Machinery Co. 2
#46 Hitoshi Shinohara Mitsubishi Heavy Industries Compressor 2