Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2019, with 30,927 patents from 15,298 inventors. Leading employers of inventors based in Tokyo, JP include Mitsubishi Electric, Hitachi, Canon.

Showing 14,951–15,000 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Masafumi Okazaki Mitsubishi Electric 1
#6064 Shinya Suenaga Hitachi 1
#6064 Hideaki Furukawa Canon 1
#6064 Kosuke Yoshida Fuji Electric Co. 1
#6064 Eri Igarashi Sony 1
#6064 Yoichi Suzuki Aeronext 1
#6064 Keisuke Naito Panasonic 1
#6064 Sachiyo Aoki Sony 1
#6064 Kazunori Kobayashi NTT 1
#6064 Yoshitaka Taniguchi Denka Company Limited 1
#6064 Hideyo Osanai Dowa Mining Co. 1
#6064 Keita Yumii Bridgestone 1
#6064 Homare Tokida Tdk 1
#6064 Kazuyuki Hirozane 1
#6064 Masayuki Yamazaki Daicel Chemical Industries 1
#6064 Hiroshi Kawano Sumitomo Electric Industries 1
#6064 Yohei Miki Mitsubishi Electric 1
#6064 Katsutaka Horada Rigaku 1
#6064 Yutaka Tateishi Senju Sprinkler Co. 1
#6064 Kazumasa Tanaka Sony 1
#6064 Tsuyoshi Mano Ricoh Company 1
#6064 Kazutoshi TSUYUTANI Tdk 1
#6064 Tomoharu Shigetomi Nisshin Steel Co. 1
#6064 Mitsuhiro Okatsu Jfe Steel 1
#6064 Yuichi Aki Sony 1
#6064 Ko Okumura Unknown 1
#6064 Masahiko Ogino Hitachi 1
#6064 Koji Ishibashi Mitsubishi Electric 1
#6064 Takahira Kawata Honda Motor Co. 1
#6064 Hideaki IRIKAWA Nippon Steel 1
#6064 Hitoshi Arai Hitachi 1
#6064 Yosuke Nakanishi Nitto Denko 1
#6064 Takuto Motoyama Sony 1
#6064 Toshihiko Niinomi Mitsubishi Electric 1
#6064 Shigeru Chiba Konami Digital Entertainment Co. 1
#6064 Hiroaki IWAOKA Agc 1
#6064 Terutaka Maehara Agc 1
#6064 Taiki Yamada Nihon Shinku Gijutsu 1
#6064 Ryuji Hamasaki Canon 1
#6064 Takashi Ichimura Honda Motor Co. 1
#6064 Tsutomu Usuki Nippon Filcon Co. 1
#6064 Hiroto Yamada Ebara 1
#6064 Kenta Fukuoka Sharp Kabushiki Kaisha 1
#6064 Tomoyuki Kojima Tokyo Weld Co. 1
#6064 Koji TOBA Kabushiki Kaisha Toshiba 1
#6064 Motoki Okinaka Canon 1
#6064 Masakazu Yoshino Subaru 1
#6064 Ryota Watanabe Sony 1
#6064 Hiroharu Sakate Mitsubishi Electric 1
#6064 Takuro Yamada Daikin Industries 1