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 Jsr, Sumitomo Bakelite Co., Senju Metal Industry Co..

Showing 10,501–10,550 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Hitoshi Hamaguchi Jsr 1
#6064 Hideaki Inokuchi Sumitomo Bakelite Co. 1
#6064 Kota Kikuchi Senju Metal Industry Co. 1
#6064 Keiichi Sawada Canon 1
#6064 Hideo Kumehara Jx Nippon Oil & Energy 1
#6064 Momoko Munakata Hitachi Chemical Company 1
#6064 Masaru Kikukawa Sumitomo Electric Industries 1
#6064 Shun Hirasawa 1
#6064 Hiroyuki Koshio Astellas Pharma 1
#6064 Koh Harada Tokyo Metropolitan Industrial Technology Research Institute 1
#6064 Kensuke Narita Hitachi 1
#6064 Eijiro Atarashi Canon 1
#6064 Reiki Akita Mitsubishi Gas Chemical Company 1
#6064 Yasuhito Sasaki Canon 1
#6064 Koichi Kajiki Canon 1
#6064 Kazuyoshi Shirai Hosokawa Yoko Co. 1
#6064 Jun Eguchi Nec 1
#6064 Satoshi Yasu Eagle Industry Co. 1
#6064 Shinkichi Nishimoto Kabushiki Kaisha Toshiba 1
#6064 Takashi Otsu Subaru 1
#6064 Shin Arahira Oki Electric Industry Co. 1
#6064 Kentaro HIRAKI Oki Data 1
#6064 Junko Ichikawa Nippon Kayaku 1
#6064 Sakae Nakajima Renesas Electronics 1
#6064 Shigetoshi Hyodo Nippon Steel & Sumitomo Metal 1
#6064 Ryuji Uemori Nippon Steel 1
#6064 Hidehito Kojima Sony 1
#6064 Yukiko Kataoka Sysmex 1
#6064 Kenji Ozoe Hitachi 1
#6064 Koji Kanai Sony 1
#6064 Nobuhiko Okamoto Zeon 1
#6064 Tomoaki Inoue Hitachi 1
#6064 Shigeru Tachikawa Hitachi 1
#6064 Naohiro Hiruta Hitachi 1
#6064 Satoru Tajima Sodick Co. 1
#6064 Mitsuaki Akaza Mitsubishi Electric 1
#6064 Toshihide Takashima Tokyo Electron Limited 1
#6064 Atsushi Kira Japan Aviation Electronics Industry, Limited 1
#6064 Yasuyuki Nagasoe Hitachi 1
#6064 Mitsuyasu Ohata Mitsubishi Electric 1
#6064 Toshitami Hara Canon 1
#6064 Yoshihisa Kashimoto Japan Aviation Electronics Industry, Limited 1
#6064 Yoshiyuki Takanashi Tdk 1
#6064 Kiyozumi Fujiwara Alpine Electronics 1
#6064 Kayo Akiyama Ajinomoto Co. 1
#6064 Hisashi Shiota Renesas Electronics 1
#6064 Toru Konishi Sony 1
#6064 Kazuto HOSHI The University Of Tokyo 1
#6064 Tatsuya Nakagami Komatsu 1
#6064 Jo Shimizu Dowa Electronics Materials Co. 1