Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2016, with 25,606 patents from 13,113 inventors. Leading employers of inventors based in Tokyo, JP include Hitachi, Hitachi Mitsubishi Hydro, Jfe Steel.

Showing 12,851–12,900 of 13,113 inventors

Rank Inventor Primary Company Patents
#5101 Fumitaka Satoh Hitachi 1
#5101 Tamaki Hamaguchi Hitachi 1
#5101 Yukio Hongawa Hitachi Mitsubishi Hydro 1
#5101 Tooru Tsuru Jfe Steel 1
#5101 Tatsuo Sato 1
#5101 Tamotsu Kondou Genesis Research Institute 1
#5101 Fumitaka Mafune Genesis Research Institute 1
#5101 Daisuke Anraku Jx Nippon Oil & Energy 1
#5101 Youhei Koide Zeon 1
#5101 Kentaro Kamimae Daisan Kasei Co. 1
#5101 Yasuo Yoshimoto Daisan Kasei Co. 1
#5101 Makoto Okazaki Hoechst Japan Limited 1
#5101 Akira Yuo Id Pharma Co. 1
#5101 Ryo Nagashio National Cancer Center 1
#5101 Naoto Kubota Japan Science And Technology Agency 1
#5101 Aiko Tagawa Thk Co. 1
#5101 Kazuaki Ibaraki Japan Aviation Electronics Industry, Limited 1
#5101 Yukihiro Yazawa Sumitomo Osaka Cement Co. 1
#5101 Takahiro Shimoo Kabushiki Kaisha Toshiba 1
#5101 Kojiro Nakayama Hitachi 1
#5101 Toshiki Misonou Hitachi 1
#5101 Keizou Katou Hitachi 1
#5101 Katsuyuki Kanazawa Nittobo Acoustic Engineering Co. 1
#5101 Seiho Utsumi Mitsubishi Hitachi Power Systems 1
#5101 Yukitoshi Hirose Elpida Memory 1
#5101 Atsushi Sakatoku Nippon Steel & Sumitomo Metal 1
#5101 Aki Onuma Kabushiki Kaisha Toshiba 1
#5101 Tsutomu Sugihara Kyowa Hakko Kirin Co. 1
#5101 Masatoshi Okuhira Hitachi Kokusai Electric 1
#5101 Koutaro Oota Shiseido Company, Limited 1
#5101 Yukinobu Kimoto Nec 1
#5101 Etsuko Ayaka 1
#5101 Ayame Suzuki Denka Company Limited 1
#5101 Tomohiko Hashiba Unknown 1
#5101 Osamu Niwa 1
#5101 Yutaro Mori Jae Electronics 1
#5101 Takaya Nojima Mitsubishi Motors 1
#5101 Takuya Noborizato Mitsubishi Motors 1
#5101 Takahiro Honma Advantest 1
#5101 Hideto Omori Advantest 1
#5101 Takashi Ohguro Advantest 1
#5101 Masanori Yamamoto Teijin Pharma Limited 1
#5101 Nobuo Yamaga Kabushiki Kaisha Toshiba 1
#5101 Katsutoshi Yoshimura Lapis Semiconductor Co. 1
#5101 Akihide Hagino Zeon 1
#5101 Yasushi Kasao Kabushiki Kaisha Toshiba 1
#5101 Yasushi Mitsuyama Mitsubishi Electric 1
#5101 Yoshikazu Yokota Hitachi 1
#5101 Taro Takahara Ziosoft 1
#5101 Hiromi Osaka Mitsubishi Electric 1