Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2020, with 29,522 patents from 14,393 inventors. Leading employers of inventors based in Tokyo, JP include Hitachi High-Technologies, Sony, Denso.

Showing 13,651–13,700 of 14,393 inventors

Rank Inventor Primary Company Patents
#5815 Wataru Nagatomo Hitachi High-Technologies 1
#5815 Jun Gomita Sony 1
#5815 Toshiya Koyasu Denso 1
#5815 Koui NORIMATSU Nec 1
#5815 Ichiro Itagaki Toray Industries 1
#5815 Soichi Isobe Ebara 1
#5815 Shota MORISAKI Mitsubishi Electric 1
#5815 Yasuyuki Akai Daicel 1
#5815 Takeshi Yokoo Daicel 1
#5815 Masayuki Tsunekawa Dai Nippon Printing Co. 1
#5815 Masaru Chiyomaru Mitsubishi Electric 1
#5815 Kazuki Asahi Subaru 1
#5815 Hiroyuki Aga Sony 1
#5815 Kazuharu Osawa Canon 1
#5815 Takahiro Kambe Yokogawa Electric 1
#5815 Tatenobu Seki Yokogawa Electric 1
#5815 Jun Miyashita Hitachi 1
#5815 Yoshiaki Tsukada Honda Motor Co. 1
#5815 Senichi Ryo Disco 1
#5815 Yutaka Ohki Furukawa Electric Co. 1
#5815 Masao ONOZUKA Denka Company Limited 1
#5815 Kohei Ohara Honda Motor Co. 1
#5815 Atsushi NOZAWA Zeon 1
#5815 Kuon Miyazaki Asahi Kasei Kabushiki Kaisha 1
#5815 Koji Kutsuwa Nippon Paper Industries Co. 1
#5815 Shinya Ishihama Mitsubishi Electric 1
#5815 Yoshitaka Watanabe Canon 1
#5815 Keisuke Igarashi Hitachi 1
#5815 Tomotsugu Minamikawa Sony 1
#5815 Akihisa Matsukawa Canon 1
#5815 Yuki TAKAKI Jfe Steel 1
#5815 Ryota Hisada Honda Motor Co. 1
#5815 Takeshi Hosoya Fujikoki 1
#5815 Tomoko Tamai Honda Motor Co. 1
#5815 Ippei Uchida Canon 1
#5815 Shinya Kimura Panasonic 1
#5815 Hanako Yoshino Tdk 1
#5815 Shuto Ono Tdk 1
#5815 Tomoyoshi Ogasahara Jfe Steel 1
#5815 Akira Nikaido Citizen Electronics Co. 1
#5815 Tomohiro Hatae Nec 1
#5815 Toshiaki Yamada Mitsubishi Gas Chemical Company 1
#5815 Retsu Sugawara Mitsubishi Electric 1
#5815 Reo Asaki Sony 1
#5815 Yuhei SHIMADA 1
#5815 Shinichiro Ishino Panasonic 1
#5815 Tomohiko Oda Joled 1
#5815 Eisho ANDO Mitsubishi Electric 1
#5815 Hiroshi Kawarada Waseda University 1
#5815 Kohei NISHINO Denka Company Limited 1