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 Tdk, Unicharm, Hitachi High-Technologies.

Showing 14,851–14,900 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Hiroyasu Inoue Tdk 1
#6064 Shigeru Nakamoto 1
#6064 Kazuya Okada Unicharm 1
#6064 Tsutomu Iida Hitachi High-Technologies 1
#6064 Naomichi Omori Ihi 1
#6064 Nagamasa Mizushima Hitachi 1
#6064 Yuta Hoshino 1
#6064 Kosuke Wakao Japan Airlines International Co. 1
#6064 Kei Tsujimoto Takata 1
#6064 Koichi Kawasaki Sony 1
#6064 Eiji Komura Tdk 1
#6064 Kei Tsukamoto Sony 1
#6064 Haruhiko Horiguchi Canon 1
#6064 Masanori Miyagi Seiko Instruments 1
#6064 Shumei Ishihara Kuraray Noritake Dental 1
#6064 Mao Komai Shiseido Company, Limited 1
#6064 Sho Kato Mitsubishi Electric 1
#6064 Katsuyuki Takashima Mitsubishi Electric 1
#6064 Takuro Kawai Sony 1
#6064 Yusuke TSUBAKI Mitsubishi Electric 1
#6064 Eiji Takegami Tdk 1
#6064 Yoshitaka Atarashi Hitachi 1
#6064 Satoshi Matsushita Honda Motor Co. 1
#6064 Masayuki Fujiki Ebara 1
#6064 Akira Nagao Honda Motor Co. 1
#6064 Shota Umeda 1
#6064 Toshiharu Sugawara Hitachi 1
#6064 Hideyuki KUME Hitachi 1
#6064 Nobuhiro Chiba Sony 1
#6064 Kyosuke Inada Honda Motor Co. 1
#6064 Yoshihiro Sakamoto Panasonic 1
#6064 Kenichi Hidai Sony 1
#6064 Masatsugu Higashi Nitto Denko 1
#6064 Koji Kitani Canon 1
#6064 Hiroyuki Toyoda Hitachi 1
#6064 Yuuji Nakajima Mitsubishi Electric 1
#6064 Shingo Urata Agc 1
#6064 Kosuke Nishikawa Mitsubishi Electric 1
#6064 Takashi Hiranaka Komatsu 1
#6064 Satoshi Okazaki Shin-Etsu Chemical Co. 1
#6064 Takahiro Oguma Mitsubishi Motors 1
#6064 Naoki Fukutake Nikon 1
#6064 Tadashi Maeda Nec 1
#6064 Takushi MIYAKAWA 1
#6064 Seiju Suzuki Nisshin Steel Co. 1
#6064 Kenji Tanimoto Nissan Chemical Industries 1
#6064 Hidetoshi Nagano Sony 1
#6064 Kyohei OCHIAI Adeka 1
#6064 Hiroshi Yanagigawa Renesas Electronics 1
#6064 Hitoshi Noguchi Fujitsu Limited 1