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 Nec, Kabushiki Kaisha Toshiba, Sony.

Showing 12,851–12,900 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Kenji Koyanagi Nec 1
#6064 Saori Asaka Kabushiki Kaisha Toshiba 1
#6064 Tetsunori Nakayama Sony 1
#6064 Michihiro Okada Sony 1
#6064 Masaru Fuku Mitsubishi Electric 1
#6064 Jun Fujita Toshiba Kikai 1
#6064 Naoya Sazuka Sony 1
#6064 Shuji Fujita Sony 1
#6064 Yukito Inoue Sony 1
#6064 Masahiro Totsu Nikon 1
#6064 Shinji Oota Japan Vilene Company 1
#6064 Akiyasu Okamoto Mitsubishi Mining 1
#6064 Katsuhiko YASU Hitachi Chemical Company 1
#6064 Taro Kono Nippon Steel 1
#6064 Kenichi Kagawa Tokyo Electron Limited 1
#6064 Kiyoshi Kojima Sumitomo Electric Industries 1
#6064 Takumi Yamane Ushio Denki Kabushiki Kaisha 1
#6064 Akihiro Koyama Nippon Sheet Glass Company, Limited 1
#6064 Tsutomu Kawamizu Mitsubishi Electric 1
#6064 Kazunori Takanashi Jsr 1
#6064 Yuya ISHIMA Tdk 1
#6064 Kouichi Kakuda Tdk 1
#6064 Hidehiro Komatsu Sony 1
#6064 Yuji Makiuchi Fujitsu Component Limited 1
#6064 Hideyuki Hagihara Fujitsu Component Limited 1
#6064 Shigeru Hayata Shinkawa 1
#6064 Tomohiro Asai Hitachi 1
#6064 Tomohiro Iwano Hitachi Chemical Company 1
#6064 Shoko ARAKI NTT 1
#6064 Takahiro Mashimo Agc 1
#6064 Junichi KAMINAGA Toppan Printing Co. 1
#6064 Nobuhiko Takeshita Agc 1
#6064 Katsuya Ota Kyocera Document Solutions 1
#6064 Wataru Yada Honda Motor Co. 1
#6064 Yasuhide Oshima Jfe Steel 1
#6064 Kiyoshi Fujimoto Mitsubishi Electric 1
#6064 Masaki Tomita Ebara 1
#6064 Takashi Adachi Taisho Pharmaceutical Co. 1
#6064 Takashi Hosogane Audio-Technica 1
#6064 Kota SASAKI Hitachi 1
#6064 Takamasa Iwai Mitsubishi Electric 1
#6064 Hiroaki Kanokogi Yokogawa Electric 1
#6064 Yosuke Takahashi Hitachi 1
#6064 Katsumi Takagi Mitsubishi Electric 1
#6064 Naoaki Fujiwara Mitsubishi Electric 1
#6064 Chihiro Wake Honda Motor Co. 1
#6064 Shinya Takumi Kabushiki Kaisha Toshiba 1
#6064 Satoshi Sunahara Canon 1
#6064 Tomohiro KUTSUKI Mitsubishi Electric 1
#6064 Masaomi Miyazawa Mitsubishi Electric 1