Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2024, with 28,253 patents from 13,980 inventors. Leading employers of inventors based in Tokyo, JP include Toppan Printing Co., Nippon Hoso Kyokai, Hitachi Plant Services Co..

Showing 10,351–10,400 of 13,980 inventors

Rank Inventor Primary Company Patents
#5381 Hayato Ikeda 1
#5381 Takashi Kaburagi 1
#5381 Kazuma Taniwaki Toppan Printing Co. 1
#5381 Shuichi Aoki Nippon Hoso Kyokai 1
#5381 Masashi TAGAMI Hitachi Plant Services Co. 1
#5381 Yusuke Naito Mitsubishi Electric 1
#5381 Yu Kimishima Sony 1
#5381 Ayako Mimatsu Toppan Printing Co. 1
#5381 Yoshiharu Tojo Ricoh Company 1
#5381 Megumi Yamaoka Panasonic 1
#5381 Keiichi Osaku Koizumi Factory 1
#5381 Masaru Mizuochi Koizumi Factory 1
#5381 Kohei Sakamoto Mitsubishi Heavy Industries Engine & Turbocharger 1
#5381 Yasuki Aihara Mitsubishi Electric 1
#5381 Masao Tsujimoto Lapis Semiconductor Co. 1
#5381 Yukio Nozaki Komatsu Shisakusho 1
#5381 Miaomei LEI Hitachi 1
#5381 Masamichi Tamura Murata Manufacturing Co. 1
#5381 Teppei Shoji Hitachi Kokusai Electric 1
#5381 Takahito Ishii Hitachi Kokusai Electric 1
#5381 Hajime Shiraishi Kabushiki Kaisha Toshiba 1
#5381 Katsunori Ieki Mitsubishi Electric 1
#5381 Mayuko HAYAMIZU Toyocolor Co. 1
#5381 Kouichirou Takahashi Agc 1
#5381 Hiromu HARADA Tdk 1
#5381 Nobuto Morigasaki Tdk 1
#5381 Akira Kumagai Kabushiki Kaisha Toshiba 1
#5381 Tasuku Suzuki Mitsubishi Electric 1
#5381 Minoru Kuraoka Subaru 1
#5381 Riichi NAGAO Hitachi 1
#5381 Takami Urasaki Mitsubishi Electric 1
#5381 Hiroki Ishizuki Satake 1
#5381 Kohei Nishiguchi Mitsubishi Electric 1
#5381 Kouichi Kurosu Nec 1
#5381 Yuusuke KOURAI Hitachi 1
#5381 Issei Umetsu Kyowa Co. 1
#5381 Kouichi UMEMOTO Daicel 1
#5381 Takeharu Naito Japan Aviation Electronics Industry, Limited 1
#5381 Takushige Katsura Hitachi 1
#5381 TAKANORI FUKAZAWA Sony 1
#5381 Yuichi Miyazaki Dai Nippon Printing Co. 1
#5381 Toshiyuki Hara Subaru 1
#5381 Junichi Kakuta Hitachi High-Technologies 1
#5381 Kazuya Saito Ricoh Company 1
#5381 Masahiro Daikoku Kddi 1
#5381 Kotaro Yano Canon 1
#5381 Mihoko Hotta Sumitomo Electric Industries 1
#5381 Takeshi Aida Nippon Seiki Co. 1
#5381 Taizan YONETSUJI Preferred Networks 1
#5381 Kazumasa Kishimoto Mitsubishi Electric 1