Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Toyooka, JP ranks #18,134 worldwide for total patents filed all time, with 78 patents from 24 inventors. Leading employers of inventors based in Toyooka, JP include Kaneka, Kanegafuchi Kagaku Kogyo, Sumitomo Electric Industries.

Showing 1–24 of 24 inventors

Rank Inventor Primary Company Patents
1 Masanori Fukuda Kaneka 24
2 Takashi Suezaki Kaneka 9
3 Toshinobu Nakata Kanegafuchi Kagaku Kogyo 6
#4 Katsumi Matsumura Sumitomo Electric Industries 5
#5 Eiji Kuribe Kaneka 4
#6 Jumpei Suzuki Kaneka 3
#6 Kunitoshi Kanno Sumitomo Special Metals Co. 3
#8 Mamoru Ueno 2
#8 Nobuo Norimatsu Yamaha Motor 2
#8 Yutaka Hirooka Sumitomo Electric Industries 2
#8 Kazunari Ishikawa Sumitomo Electric Industries 2
#8 Masayoshi Matsuda Kawasaki 2
#8 Koichi Akutsu Hitachi 2
#8 Mitsuyoshi Hayashi Asahimatsu Foods Co. 2
#15 Hideo Nakashima 1
#15 Takumi Kamisaki Sumitomo Electric Industries 1
#15 Teruo Ohnishi Nihonkenkozoshinkenkyukai Co. 1
#15 Jyunji Kumamoto Sanyo Electric Co. 1
#15 Michio Kinugawa 1
#15 Mayumi Kamo Sysmex 1
#15 Kiyotaka Aono Suzuki Jidosha Kogyo 1
#15 Hiroaki Miichi 1
#15 Toshinao Hata 1
#15 Michiko Shibuya 1