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USPTO Patent Rankings Data through Sept 30, 2025
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Tokyo, JP All Time

716,148 patents  ·  91,278 inventors

Ranked #1 of 111,555 cities Top 1%

Tokyo, JP ranks #1 worldwide for total patents filed all time, with 716,148 patents from 91,278 inventors. Leading employers of inventors based in Tokyo, JP include Hitachi, Sony, Nitto Boseki Co..

Showing 18,851–18,900 of 91,278 inventors

Rank Inventor Primary Company Patents
#17667 Yoshifumi Izumi Hitachi 9
#17667 Kenji Hachisu Sony 9
#17667 Naoyuki Furuta Nitto Boseki Co. 9
#17667 Masashi Oki Mitsubishi Electric 9
#17667 Toru Meura Sumitomo Bakelite Co. 9
#17667 Yoshio Fukumine Zeon 9
#17667 Tatsuo Kuroiwa Sony 9
#17667 Ryo Yasoshima Tsukineko Co. 9
#17667 Yoshiharu Mitono Fujitsu Limited 9
#17667 Eishi Takeda Canon 9
#17667 Hideo Ohtani Yamatake 9
#17667 Yasukazu Shikano Asahi Kasei Chemicals 9
#17667 Miyuki Fujii Hitachi Kokusai Electric 9
#17667 Tomoyoshi Kobori Nec 9
#17667 Keiichiro Tounai Nec 9
#17667 Ryuzo Yamamoto Asahi Kasei Microdevices 9
#17667 Kumiko Shimizu — 9
#17667 Mihoko Yamashita Across Co. 9
#17667 Yoshihisa Hatta Oji Holdings 9
#17667 Sakiko Saeki Ceva Sante Animale 9
#17667 Noriyuki Iguchi Nec 9
#17667 Shuichi Yuasa Jeol 9
#17667 Hiroto Yasuda Ntt Docomo 9
#17667 Tatsuro Honda Nippon Steel & Sumitomo Metal 9
#17667 Tomotaka Yokoyama Hoya 9
#17667 Yuichi NAGAHISA Mitsubishi Electric 9
#17667 Ryosuke Iwata Dexerials 9
#17667 Hiroki Akaishi Pioneer 9
#17667 Nobuyuki Hayama Nec 9
#17667 Li Lu Hitachi 9
#17667 Terutaka Tokumaru Mitsubishi Gas Chemical Company 9
#17667 Naru Ikeda Kabushiki Kaisha Toshiba 9
#17667 Takashi Sakagawa Kabushiki Kaisha Toshiba 9
#17667 Tomoya Oikawa Sony 9
#17667 Hiroaki KASAI Hitachi 9
#17667 Kojun Koshiji NTT 9
#17667 Takahito Aoki Dai Nippon Printing Co. 9
#17667 Kanako Taga Nec 9
#17667 Hideo Koizumi Toshiba 9
#17667 Yukio Kashima Marubun 9
#17667 Shoichi Omi Lunax Company Limited 9
#17667 Ryo Nishimaki NTT 9
#17667 Kiyohito Yoshihara Kddi 9
#17667 Takashi Sawada Kyowa Hakko Kirin Co. 9
#17667 Tsutomu Tamaki Mitsubishi Electric 9
#17667 Nobuo Kikumoto Mitsubishi Materials 9
#17667 Naoto Yoshie Dena Co. 9
#17667 Futoshi Kaibuki Sony 9
#17667 Maomi Seko Asahi Kasei Kogyo Co. 9
#17667 Yo Tanaka Mitsubishi Electric 9

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