Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2020, with 29,522 patents from 14,393 inventors. Leading employers of inventors based in Tokyo, JP include Hitachi, Ntt Docomo, Canon.

Showing 13,951–14,000 of 14,393 inventors

Rank Inventor Primary Company Patents
#5815 Tetsuo Yokoyama Hitachi 1
#5815 Shin-ichi Isobe Ntt Docomo 1
#5815 Hiroshi Tomioka Canon 1
#5815 Nobuhito Tsuku Moriroku Technology Company 1
#5815 Yasuyuki Moroishi Toyo Ink Sc Holdings Co. 1
#5815 Maryam Husna Yahya Enplas 1
#5815 Nobuo Ogawa Daifuku Co. 1
#5815 Kenichi Okamoto Yazaki 1
#5815 Kunio JONIN Seed Co. 1
#5815 Kota SUGAYA Olympus 1
#5815 Megumi Fukushima Yahoo Japan 1
#5815 Masaaki Omodaka Nippon Steel & Sumitomo Metal 1
#5815 Ietomo MATSUNAGA Bridgestone 1
#5815 Yasuyuki Kuroda Metawork 1
#5815 Yasuo Narita Plus Stationery 1
#5815 Yasuhiro Kono 3M 1
#5815 Kazuharu Yoshida Kyocera 1
#5815 Junichi Aiba Furukawa Electric Co. 1
#5815 Kazushi Hirano Agilent Technologies 1
#5815 Hiroaki Ishida National University Corporation Okayama University 1
#5815 Takayuki Shiromoto Asahi Kasei Kabushiki Kaisha 1
#5815 Syuuichi Yoshida Hitachi 1
#5815 Tomoko Motohashi Hitachi 1
#5815 Masanori Nagafuji Jfe Engineering 1
#5815 Yoshiharu Tsuboi Kabushiki Kaisha Toshiba 1
#5815 Miku Goto Brillnics 1
#5815 Seiji Torigoe Hitachi 1
#5815 Kentaro Kawazoe Ihara Chemical Industry Co. 1
#5815 Shun Fukumoto 1
#5815 Yasushi Kontani Rakuten Group 1
#5815 Manabu TSUBURAYA Zeon 1
#5815 Tetsuya Toyoshima Zeon 1
#5815 Tomoki Kataoka Japan Aviation Electronics Industry, Limited 1
#5815 Masahiro Ishizuka Sbi Pharmaceuticals Co. 1
#5815 So Kuroiwa Ebara 1
#5815 Ryota HOSAKA Panasonic 1
#5815 Mikio Kiura Canon 1
#5815 Midori MATSUNAGA Bridgestone 1
#5815 Shinichi Kazama Kyocera 1
#5815 Chihiro MAEDA Asahi Kasei Kabushiki Kaisha 1
#5815 Jungo Horiyama Moriroku Technology Company 1
#5815 Hidetoshi Morohashi Moriroku Technology Company 1
#5815 Takumi Okazaki Nec 1
#5815 Hiroto Chiba Dexerials 1
#5815 Mizuyuki SAKAI Kurita Water Industries 1
#5815 Junko Takemoto Rakuten Group 1
#5815 Masami Enoki Fujifilm Wako Pure Chemical 1
#5815 Kiyonori Kushioka Mitsubishi Hitachi Power Systems 1
#5815 Michitoshi Honma Synaptics Incorporated 1
#5815 Kazuhisa Tsunoyama Astellas Pharma 1