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 IBM, Hamamatsu Photonics K.K., Nec.

Showing 10,001–10,050 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Kohichi Masuda IBM 1
#6064 Takafumi HAMAOKA Hamamatsu Photonics K.K. 1
#6064 Jun MORIZONO Nec 1
#6064 Tsuyoshi Nakaji Mitsubishi Electric 1
#6064 Carrie Naito Rakuten Group 1
#6064 Yasunori Oono Hitachi 1
#6064 Kensuke Kimoto Nippon Steel 1
#6064 Kei Araki Toyo Seikan Co. 1
#6064 Reishi OYA 1
#6064 Fumiaki Hamazato Hitachi High-Technologies 1
#6064 Takahiro Sasaki Accenture Global Solutions Limited 1
#6064 Tatsuro ISHIJIMA 1
#6064 Nariaki Nawa Toppan Forms Co. 1
#6064 Kohei Kamata Cygames 1
#6064 Tetsuji FUJISAKI Mitsubishi Electric 1
#6064 Shinji Asayama Mitsubishi Electric 1
#6064 Kazuko MURAKOSHI Nec 1
#6064 Kazuo Kijima Toyo Aluminium K.K. 1
#6064 Yoshihiko TANABE Tdk 1
#6064 Hideo Otaka 1
#6064 Masataka Mogi Riken 1
#6064 Yuichiro Nomura Mitsubishi Electric 1
#6064 Tadashi TOYA Globeride 1
#6064 Shou Yanagisawa Japan Display 1
#6064 Seiichiro Fukushi Ricoh Company 1
#6064 Shinji Nakabayashi Subaru 1
#6064 Masahito Tuji Shinkawa 1
#6064 Noriyoshi Hayashi Nihon Kohden 1
#6064 Naoki Kuraba Mitsubishi Electric 1
#6064 Kiyotaka Kasahara Advantest 1
#6064 Shunsuke HAZAMA Honda Motor Co. 1
#6064 Fumihiko Ueno Nipro 1
#6064 Yohei Nogami Lion Group 1
#6064 Ryuichi IGARASHI Renesas Electronics 1
#6064 Motosuke Suzuki Kondoh Industries 1
#6064 Mika Horie Nec 1
#6064 Hirooki Ushijima Subaru 1
#6064 Takuto Kushi Murata Manufacturing Co. 1
#6064 Migita Makoto Futaba 1
#6064 Kohsuke Kikuhara Subaru 1
#6064 Toshiya Tsukiai Yokogawa Electric 1
#6064 Haruki MATSUO Disco 1
#6064 Toshimi MIZUTANI Renesas Electronics 1
#6064 Bunta Yasuda Zeon 1
#6064 Hiroko Hasebe Hitachi 1
#6064 Sunao IKEGAWA Teijin Pharma Limited 1
#6064 Masakazu Sakoda Ns Solutions 1
#6064 Hisanobu Masuda Mitsubishi Electric 1
#6064 Kenji Fujisaka Sony 1
#6064 Ryota Tsujio Mitsubishi Electric 1