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 Toshiba Energy Systems & Solutions, Asahi Glass Co., Komatsu.

Showing 13,501–13,550 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Keiko Okaya Toshiba Energy Systems & Solutions 1
#5439 Kenichiro Shimo Asahi Glass Co. 1
#5439 Ken Nishihara Komatsu 1
#5439 Toshiaki Yamada Mitsubishi Gas Chemical Company 1
#5439 Goshi Iketaka Mitsubishi Heavy Industries Thermal Systems 1
#5439 Reo Asaki Sony 1
#5439 Tomofumi Ohashi Azbil 1
#5439 Hisaki Sakamoto Furukawa Electric Co. 1
#5439 Masamitsu HAEMORI Tdk 1
#5439 Masato Ninomiya Toshiba Lifestyle Products & Services 1
#5439 Masatoshi YOSHINAGA Gc 1
#5439 Junichi Yamagishi Unirec Co. 1
#5439 Edson Gomes Camargo Asahi Kasei Microdevices 1
#5439 Rintarou Minamitani Hitachi 1
#5439 Hideo Miyanishi Mitsubishi Hitachi Power Systems 1
#5439 Ryuichi Tanimoto Sumco 1
#5439 Motoaki ARAKI Showa Denko K.K. 1
#5439 Seiji Katsuoka Ebara 1
#5439 Hisayuki Nagamine Ps4 Luxco S.A.R.L. 1
#5439 Yasuaki Shirogane Rakuten Group 1
#5439 Koji Hiramoto Japan Display 1
#5439 Shota NARUMI 1
#5439 Minoru Takashima Jfe Steel 1
#5439 Junichi Aoki Toray Industries 1
#5439 Hirofumi Koga Omron Tateisi Electronics 1
#5439 Masumi Kuritani Showa Denko K.K. 1
#5439 Chikashi Shike Komatsu 1
#5439 Haruhiko Watanabe Denso 1
#5439 Tetsuya Sago Alps Electric Co. 1
#5439 Daisuke Takemoto Mitsubishi Heavy Industries Engine & Turbocharger 1
#5439 Shinji Yoshioka Hitachi High-Technologies 1
#5439 Susumu Tanimoto Dialog Semiconductor (Uk) Limited 1
#5439 Yoshitomo Kobayashi Ricoh Company 1
#5439 Hiroyuki Shimokawa Japan Display 1
#5439 Hiroshi Sotozaki Ebara 1
#5439 Kazuhiro Eguchi Kabushiki Kaisha Toshiba 1
#5439 Yutaka Ohtake The University Of Tokyo 1
#5439 Daisuke Kitamura Kaneka 1
#5439 Yasuoki Tomita Mitsubishi Electric 1
#5439 Haruhiko Seki Jfe Steel 1
#5439 Masaya Kunigita Asahi Glass Co. 1
#5439 Naoya Hashii Mitsubishi Electric 1
#5439 Hiroyuki Ajiki Joled 1
#5439 Kyungsung Yun Dexerials 1
#5439 Shuhei Eguchi Hitachi 1
#5439 Takumi Mori Mitsubishi Electric 1
#5439 Taichi Tsuji Subaru 1
#5439 Tazuki Watanabe Subaru 1
#5439 Kenichirou Tokuo Hitachi Automotive Systems 1
#5439 Yoshihiro Chiken Yokogawa Electric 1