Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2017, with 27,234 patents from 13,570 inventors. Leading employers of inventors based in Tokyo, JP include Mitsubishi Electric, Fuji Manufacturing Co., Dowa Electronics Materials Co..

Showing 13,251–13,300 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Kiyoshi Yoshimura Mitsubishi Electric 1
#5439 Morio Tsukita Fuji Manufacturing Co. 1
#5439 Yutaka Hisaeda Dowa Electronics Materials Co. 1
#5439 Hiroyuki Fukumoto Max Co. 1
#5439 Hiroaki Suto Max Co. 1
#5439 Jun Okazaki Sharp Kabushiki Kaisha 1
#5439 Motoyasu Takabatake Renesas Electronics 1
#5439 Masayoshi Kato Canon 1
#5439 Tomohisa Ogasawara Hitachi 1
#5439 Takeo Shimomura Nabtesco Automotive 1
#5439 Osamu Hayashida Shin-Etsu Chemical Co. 1
#5439 Shouta Nakamura Adamant Namiki Precision Jewel Co. 1
#5439 Yukiyo ASAKURA Media Global Links Co. 1
#5439 Toshihiko Iijima Tokyo Electron Limited 1
#5439 Satoshi Iwatsu Sony 1
#5439 Kazuhiro Kijima Renesas Electronics 1
#5439 Masayoshi SOKEN Square Enix Co. 1
#5439 Mariko Obuki Kabushiki Kaisha Sangi 1
#5439 Koichiro TABUCHI Olympus 1
#5439 Gentatsu Seki Suntory Holdings Limited 1
#5439 Yohei Okita Bridgestone 1
#5439 Yoshinori Nagasu Furukawa Electric Co. 1
#5439 Akinobu Kunimoto Asahi Glass Co. 1
#5439 Takahiko Yamamuro Mitsubishi Electric 1
#5439 Takeshi Nishino Fujitsu Component Limited 1
#5439 Tetsuya Yagami Hitachi 1
#5439 Tetsuo Ejiri Kureha 1
#5439 Takashi Kunimi Akebono Brake Industry Co. 1
#5439 Toru Sekine Akebono Brake Industry Co. 1
#5439 Akihiko Iwaya Hitachi 1
#5439 Kou Nogami Nec Platforms 1
#5439 Rintarou Ashida Nec Platforms 1
#5439 Tatsuki Inuzuka Hitachi 1
#5439 Junkei Sato Renesas Electronics 1
#5439 Daisuke HYUGA Mitsubishi Electric 1
#5439 Tsukasa Matsushita Mita Industrial Co. 1
#5439 Tomomitsu Kato Showa Denko K.K. 1
#5439 Azumi KAMATA Lixil 1
#5439 Sadayuki Watanabe Fuji Electric Co. 1
#5439 Takashi Mitsunari Ihara Chemical Industry Co. 1
#5439 Takayoshi ITOH Mitsubishi Gas Chemical Company 1
#5439 Noriaki Ootsuka Tdk 1
#5439 Toshimasa Miyoshi Sony 1
#5439 Mikiko KARASAWA Kabushiki Kaisha Toshiba 1
#5439 Yusuke Yanase Mitsubishi Electric 1
#5439 Masahiro Kusunoki Kabushiki Kaisha Toshiba 1
#5439 Kazuhiko Tasaka Cosmo Oil Co. 1
#5439 Nobuhide Miyachi Nissan Chemical Industries 1
#5439 Shingo Maruyama Moresco 1
#5439 Haruka Asai Sony 1