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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 Ihi, Nippon Steel, Nec.

Showing 18,251–18,300 of 91,278 inventors

Rank Inventor Primary Company Patents
#17667 Chiyuki Nakamata Ihi 9
#17667 Tomofune Tani Nippon Steel 9
#17667 Tomoji Terakado Nec 9
#17667 Yukihiro Naito Nec 9
#17667 Kenichi Nishigaki Mitsubishi Kinzoku 9
#17667 Tadao Etani Japan Tobacco 9
#17667 Tetsuji Uezono Eastman Kodak 9
#17667 Hiroshi Takeyama Denso 9
#17667 Shin Odajima Nidec Copal 9
#17667 Yusuke Toriumi Canon 9
#17667 Hirokazu Yoshizawa Seiko Instruments 9
#17667 Yuki Togashi Japanese Foundation For Cancer Research 9
#17667 Hiroshige Murata Ishikawajima-Harima Heavy Industries Co. 9
#17667 Tatsuya Kohama Ebara 9
#17667 Takashi Hamaguchi Hitachi 9
#17667 Takehide Hayashi Ebara 9
#17667 Takaya Nagamine Audio-Technica 9
#17667 Takahiro Ushijima Mitsubishi Electric 9
#17667 Hajime Takamatsu Astellas Pharma 9
#17667 Shunji Imai Mitsubishi Electric 9
#17667 Yasuhiro Sagesaka Hitachi 9
#17667 Aya Ohmae Hitachi 9
#17667 Keisuke Katsurada Mitsubishi Electric 9
#17667 Shusuke Kaya Furukawa Electric Co. 9
#17667 Kiyotake Kumazawa Hitachi 9
#17667 Takafumi Kohama Sankyo Holdings Co. 9
#17667 Hiroki Iciki Fujitsu Limited 9
#17667 Keiko Yabuki Sony 9
#17667 Kazuro Shiomi The Kitasato Institute 9
#17667 Kazunori Muraki Nec 9
#17667 Eiji Hosaka Thk Co. 9
#17667 Toshiyuki Ayukawa Tdk 9
#17667 Eiichi Matsuzaka Nippon Petrochemicals, Co. 9
#17667 Kensuke Kato Canon 9
#17667 Ryo Takimura Konica 9
#17667 Yoshio Serikawa Ricoh Company 9
#17667 Noboru Oishi Oki Data 9
#17667 Hiroko Fujita — 9
#17667 Yasuhiro Kitajima Nec 9
#17667 Tetsuji Kato Hitachi 9
#17667 Toru Hirota Aisin 9
#17667 Hidenari Matsukuma Hochiki 9
#17667 Ryoichi Hirako Yokowo Co. 9
#17667 Osamu Kakinoki Mgc Filsheet Co. 9
#17667 Toshihide Izumiya Kabushiki Kaisha Toshiba 9
#17667 Kiyotaka Nagamori N.E. Chemcat 9
#17667 Hisao Kimura Mycoal Products 9
#17667 Masaki Okayasu Mitutoyo 9
#17667 Ryosuke OKUYAMA Sumco 9
#17667 Takaaki Kawase IBM 9

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