Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hiroshima, JP ranks #169 worldwide for total patents filed in 2016, with 661 patents from 440 inventors. Leading employers of inventors based in Hiroshima, JP include Komatsu, Kobelco Construction Machinery Co., Denso.

Showing 1–50 of 440 inventors

Rank Inventor Primary Company Patents
1 Tomohiro Nakagawa Komatsu 11
2 Kazuhiro Ueda Kobelco Construction Machinery Co. 9
3 Shinya Goto Denso 5
3 Hiroshi Kanamaru Kobelco Construction Machinery Co. 5
3 Yasuyuki Tanaka Kabushiki Kaisha Toshiba 5
3 Takashi Youso Mazda Motor 5
3 Masahiro Naito Murata Manufacturing Co. 5
3 Masahisa Yamakawa Mazda Motor 5
3 Masaki Chiba Nec 5
3 Yusuke KAMIMURA Kobelco Construction Machinery Co. 5
#11 Makoto Otsubo Denso 4
#11 Yumi Ogura Delta Tooling Co. 4
#11 Mitsuhiko Ota Mitsubishi Heavy Industries Compressor 4
#11 Arihiro Furumoto Mazda Motor 4
#11 Kaoru Adachi Kobelco Construction Machinery Co. 4
#11 Etsunori Fujita Delta Tooling Co. 4
#11 Yukio Hiraoka Sumitomo Electric Industries 4
#11 Toshio Sakamoto Mazda Motor 4
#11 Kouhei Iwai Mazda Motor 4
#11 Shinichi Harada Mazda Motor 4
#11 Takahiro Yagi Toray Industries 4
#22 Akira Nakazumi Kobelco Construction Machinery Co. 3
#22 Seiji Kawasaki Delta Tooling Co. 3
#22 Masaki Yushima Mitsubishi Electric 3
#22 Takuya Obatake Mazda Motor 3
#22 Hiromasa Inada Mitsubishi Electric 3
#22 Kazuhiro Nagatsu Mazda Motor 3
#22 Ichiro Wada Unicharm 3
#22 Takashi Umehara Nikon 3
#22 Akio Kuroda Fujisawa Pharmaceutical Co. 3
#22 Mitsunori Hirozawa Kobelco Construction Machinery Co. 3
#22 Masakazu Ozaki Kobelco Construction Machinery Co. 3
#22 Yoshihiko Ueda Takara Kogyo Co. 3
#22 Ryuma Murakami Mazda Motor 3
#22 Masayuki Tokumo Mazda Motor 3
#22 Yoshito Iwauchi Mazda Motor 3
#22 Sho Yoshida Furukawa Automotive Systems 3
#22 Masaru Nakagishi Mazda Motor 3
#22 Takayuki Nakamae Mazda Motor 3
#22 Akihiro Yamamoto Sharp Kabushiki Kaisha 3
#22 Masaaki Murakami Kobelco Construction Machinery Co. 3
#22 Kouichi Yamanoue Mitsubishi Motors 3
#22 Jiro Agawa Mitsubishi Heavy Industries Machinery Technology 3
#22 Akihide Takami Mazda Motor 3
#22 Masatoki Kito Mazda Motor 3
#22 Hirofumi Ogawa Hitachi 3
#22 Masatsugu Hamasaki Kobelco Construction Machinery Co. 3
#22 Kousuke Takahashi Mazda Motor 3
#22 Tatsuhiko Iwasaki Mazda Motor 3
#22 Yusuke Fushiwaki Jfe Steel 3