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 Nippon Kayaku, Mitutoyo, Nof.

Showing 12,201–12,250 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Junya Masegi Nippon Kayaku 1
#6064 Harumasa Ito Mitutoyo 1
#6064 Kyoko Fukazawa Nof 1
#6064 Hideaki Sasazawa Hitachi High-Technologies 1
#6064 Asuka Suekane Olympus 1
#6064 Koji MISAKI Mitsubishi Electric 1
#6064 Satoshi Hiyoshi Kh Neochem Co. 1
#6064 Jinichi Todoroki Nagano Keiki Co. 1
#6064 Takumi Kuji Japan Display 1
#6064 Toshiaki Nagumo Denki Kagaku Kogyo 1
#6064 Tadashi Kunitani Metawater Co. 1
#6064 Ayano Tanabe Citizen Watch Co. 1
#6064 Shigetoshi Otoyama Asahi Kasei Kabushiki Kaisha 1
#6064 Kazuko Nakajima Asahi Kasei Chemicals 1
#6064 Yoshihisa Kawate 3M 1
#6064 Takehiko Ajima Mitsubishi Paper Mills Limited 1
#6064 Tomoya Itsuji Mitsubishi Electric 1
#6064 Yukihisa MATSUMOTO National University Corporation Tokyo Medical And Dental University 1
#6064 Zulkaizam Asri Bin Kassim Mohd Topy Kogyo Kabushiki Kaisha 1
#6064 Kentaro Oba Topy Kogyo Kabushiki Kaisha 1
#6064 Kazunari Mitsui Toppan Printing Co. 1
#6064 Akihisa Kuwaki Swcc Showa Cable Systems Co. 1
#6064 Masashi Tsubota Nec Electronics 1
#6064 Yoshiki Nishioka Dmg Mori Co. 1
#6064 Junichi Marui Dmg Mori Co. 1
#6064 Satoshi Tsujii Sony 1
#6064 Toshiaki Morikawa Stanley Electric Co. 1
#6064 Kenichiro Miyazawa Daicel Chemical Industries 1
#6064 Katsunobu Natori Hitachi 1
#6064 Takahiko Ogura Jfe Steel 1
#6064 Toshiyuki Arai Sony 1
#6064 Satoshi Shibui Asahi Kasei Emd 1
#6064 Takahiro OKIMOTO Mitsubishi Hitachi Power Systems 1
#6064 Yuki Konokawa Nhn Entertainment 1
#6064 Taro Kaneko Nec 1
#6064 Masakazu Aihara Gnss Technologies 1
#6064 Miyuki Fujii Hitachi Kokusai Electric 1
#6064 Torao Iida Chemours-Mitsui Fluoroproducts Co. 1
#6064 Yumi Tomiyama Jo Cosmetics Co. 1
#6064 Mari Takano Dai Nippon Printing Co. 1
#6064 Yasufumi Uchiyama Hitachi 1
#6064 Yoshimitsu Sakui Yahoo Japan 1
#6064 Toshihiro Kura Hitachi 1
#6064 Kota Kashiwamoto Mitsubishi Electric 1
#6064 Ryo Akiyoshi Ihi 1
#6064 Yasuhiro Yonetoku Astellas Pharma 1
#6064 Nobuhiro Matsushita Kurita Water Industries 1
#6064 Yasuki Kansha The University Of Tokyo 1
#6064 Misato Nakano Furukawa Electric Co. 1
#6064 Kazuhiko Sano Sumitomo Electric Industries 1