Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2017, with 27,234 patents from 13,570 inventors. Leading employers of inventors based in Tokyo, JP include Fujitsu Limited, Jx Nippon Oil & Energy, Meta.

Showing 13,051–13,100 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Kazumi Saito Fujitsu Limited 1
#5439 Ko Aoyagi Jx Nippon Oil & Energy 1
#5439 Hiroe Otsuka Jx Nippon Oil & Energy 1
#5439 Taro Kodama Meta 1
#5439 Yoshihiko Hamada Japan Aviation Electronics Industry, Limited 1
#5439 Eri Otaka Jx Nippon Oil & Energy 1
#5439 Shintaro Futakami Dexerials 1
#5439 Masanori Kabakura Nec 1
#5439 Chan Gu Ricoh Company 1
#5439 Seiji Sugiyama Nippon Steel & Sumitomo Metal 1
#5439 Minoru Okuda Baxter Healthcare Sa 1
#5439 Madoka Hoshino Daiichi Sankyo Company, Limited 1
#5439 Rei Suginaka IBM 1
#5439 Ayako Saga Central Japan Railway Comany 1
#5439 Shinji Higashijima 1
#5439 Kenichi Tomiyama Japan Science And Technology 1
#5439 Tomoyoshi Sugawara Nec 1
#5439 Masayoshi Nemoto Ddk 1
#5439 Tadashi Masubuchi Ddk 1
#5439 Takuya Higeta Ddk 1
#5439 Nobuo Goto Nsk 1
#5439 Syusaku AKIBA Asahi Glass Co. 1
#5439 Matsuo Bando 1
#5439 Norihiko Mikoshiba Asahi Kasei Microdevices 1
#5439 Yuki Yamaguchi Kowa Company 1
#5439 Hisashi Shimamura Nec 1
#5439 Kota Nishino Jsr 1
#5439 Nao Shirokura Asahi Kasei E-Materials 1
#5439 Eri Maruyama Hitachi 1
#5439 Toshin Akutsu 1
#5439 Chihiro Migita Olympus 1
#5439 Kayo Shoji Sysmex 1
#5439 Yuichi Matsuo Japan Aerospace Exploration Agency 1
#5439 Kengo Kuwahara Ihi 1
#5439 Yukiko Hata 1
#5439 Kimihiro Yamakawa Chukoh Chemical Industries 1
#5439 Hidenari Honda onsemi 1
#5439 Kazutaka Nagamine Fujitsu Component Limited 1
#5439 Hidenobu Tsukagishi Mitsubishi Electric 1
#5439 Kazuhisa Arai Disco 1
#5439 Hidehisa Akimaru Hitachi 1
#5439 Shigeru Inaba 1
#5439 Kiyoshi Kaneko Canon 1
#5439 Toshimasa Yonekura Japan Display 1
#5439 Akira Sugishima Konica Minolta 1
#5439 Osamu Naitou Denso 1
#5439 Yasuyuki Tomabechi 1
#5439 Akiko Sakurada Sony 1
#5439 Satoshi Muraki Hitachi 1
#5439 Shigeki Uesaka Casio Computer Co. 1