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 Ricoh Company, Jeol, Epoch Microelectronics.

Showing 12,451–12,500 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Kazunori Hoshi Ricoh Company 1
#6064 Yukihito Kondo Jeol 1
#6064 Masakatsu Yokota Epoch Microelectronics 1
#6064 Keiichi Nagashima Honda Motor Co. 1
#6064 Yasuhito Yaji Nippon Steel 1
#6064 Toshihisa Nakai Oki Electric Industry Co. 1
#6064 Kazuaki Hiraga Panasonic 1
#6064 Akinori Nanbu Fujikoki 1
#6064 Naoyuki Masuda Astellas Pharma 1
#6064 Masaaki Yasui Mitsubishi Electric 1
#6064 Yoshifumi Johji Mitsubishi Electric 1
#6064 Nao Nishida Fujikura 1
#6064 Masato AI Japan Display 1
#6064 Tarou Kusagaya 1
#6064 Reo SEIKE Lixil 1
#6064 Thomas A. Wadsworth Fdk 1
#6064 Takakazu Minato Shin-Etsu Chemical Co. 1
#6064 Masaaki Teshigawara Nec 1
#6064 Yasuto Ando Jfe Engineering 1
#6064 Takumi Kudou 1
#6064 Tomohiro Shimokawaji Nippon Mektron 1
#6064 Shinichi ISHIKAWA Rion Co. 1
#6064 Hanako Komine Asm Ip Holding B.V. 1
#6064 Katsuya Monguchi Mitsubishi Electric 1
#6064 Motoki Kamitani 1
#6064 Masahiro TOMITSUKA Denso 1
#6064 Abrakawa Yuji Unknown 1
#6064 Fumiaki Imanari Nec 1
#6064 Keito Kouda Nec 1
#6064 Satoru AKASAKA Hitachi 1
#6064 Ando Hideki Sony 1
#6064 Shinichirou Fukunishi Bandai Namco Entertainment 1
#6064 Tomotaro Doi Hitachi 1
#6064 Yasusi Shoji Mitsubishi Electric 1
#6064 Yuki Nito Lintec 1
#6064 Shotaro HIDA Ube Material Industries 1
#6064 Motohide Gotanda 1
#6064 Hiromi Ehara Kyowa Kirin Co. 1
#6064 Masayuki Mawatari Mitsubishi Heavy Industries Environmental & Chemical Engineering Co. 1
#6064 Seima Shibata Subaru 1
#6064 Yutaro Omichi Mitsubishi Electric 1
#6064 Kotaro Ogino Rakuten Group 1
#6064 Jun TSUJIKAWA Ihi 1
#6064 Mototsugu OMURA Meidensha 1
#6064 Maia Kamei Ricoh Company 1
#6064 Maki Mochiduki Ntt Facilities 1
#6064 Tadahira Yaguchi Nippon Paper Industries Co. 1
#6064 Azuma Miyazaki Honda Motor Co. 1
#6064 Yuki Fukuda Yakult Honsha 1
#6064 Yuusaku Oikawa Ihi 1