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 Hitachi, Teijin Pharma Limited, Ns Solutions.

Showing 10,151–10,200 of 15,298 inventors

Rank Inventor Primary Company Patents
#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
#6064 Mitsushi Tominaga Mitsubishi Electric 1
#6064 Takuro Sakuma Nec 1
#6064 Ono Shinichi Nippharma Co. 1
#6064 Keisuke Amemiya Subaru 1
#6064 Mami Kokaji Toyo Seikan Co. 1
#6064 Hitoshi Takeharu Toyo Seikan Co. 1
#6064 Jason Lacroix Square Enix Co. 1
#6064 Toshihide Misawa Alcare Co. 1
#6064 Hajime Fujinaga Kajima 1
#6064 Yuuji Minamihata Sumco 1
#6064 Yurika Hotani Teijin Pharma Limited 1
#6064 Naoto Kusakawa Asahi Kasei Microdevices 1
#6064 Noriyoshi Izumi Renesas Electronics 1
#6064 Masamitsu Uchiyama Mitsubishi Electric 1
#6064 Takahiro Kinoshito Subaru 1
#6064 Shinichirou Matsumoto Toyo Seikan Co. 1
#6064 Tamotsu Kikuchi Kansei 1
#6064 Hiroto Kubo Jsr 1
#6064 Yukitoshi Watabe Softbank 1
#6064 Kota Fuchiwaki Tanaka Kikinzoku Kogyo K.K. 1
#6064 Toshiaki HIRAYAMA Toyo Ink Sc Holdings Co. 1
#6064 Takuma Teramae Mitsubishi Electric 1
#6064 Morio Takada Dainippon Ink And Chemicals 1
#6064 Hiroyuki Kase Sanyo Electric Co. 1
#6064 Shoji Izumi Mitsubishi Electric 1
#6064 Keiichi Hirako Ihi 1
#6064 Kenichiro Nakao 1
#6064 Seiji Inagaki Hitachi 1
#6064 Tatsuhiro Mori Fujitsu Component Limited 1
#6064 Minoru Tamada Murata Manufacturing Co. 1
#6064 Satoru Sugimoto Toyota 1
#6064 Kenichi Kurihara Sony 1
#6064 Naoto Tsuji Asm Ip Holding B.V. 1
#6064 Atsushi KISHIOKA 1
#6064 Yuma GOGYO Hitachi Chemical Company 1
#6064 Ryuji Ito Fdk 1
#6064 Hidetatsu NAKAMURA Japan Display 1
#6064 Akira Uematsu Seiko Epson 1
#6064 Yoshito Sasaki Alps Electric Co. 1
#6064 Daisuke Matsuo Olympus 1
#6064 Kaori Oosawa Panasonic 1
#6064 Aritomo Kikuchi Advantest 1
#6064 Masahito Matsumoto Sumitomo Chemical 1
#6064 Daisuke Taga Fujitsu Component Limited 1