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 Keio University, Toshiba Tec Kabushiki Kaisha, Nec.

Showing 12,651–12,700 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Keiichi Fukuda Keio University 1
#5439 Takuro Ito Toshiba Tec Kabushiki Kaisha 1
#5439 Hiroaki Nakajima Nec 1
#5439 Hironori Murakami Canon 1
#5439 Takeshi Yogi Hitachi High-Technologies 1
#5439 Teppei Imamura Sony 1
#5439 Yuka Watanabe Kabushiki Kaisha Toshiba 1
#5439 Kaori Miyashita Nagano Keiki Co. 1
#5439 Yusuke Midorikawa Nagano Keiki Co. 1
#5439 Teruyoshi YAMAGUCHI Mitsubishi Electric 1
#5439 Futoshi Takeuchi Sony 1
#5439 Takuo Watanabe Toray Industries 1
#5439 Teruo Fujii The University Of Tokyo 1
#5439 Daiki Yamanaka Konica Minolta 1
#5439 Mamoru Nishizaki Micron 1
#5439 Masahiko Kishimoto Ebara 1
#5439 Tatsuya KINUGAWA Toyota Industries 1
#5439 Noriyuki Yokouchi Furukawa Electric Co. 1
#5439 Yosuke Kozuma Sony 1
#5439 Tomoya MURASE Zeon 1
#5439 Masafumi Tomono Fujifilm 1
#5439 Hideo Ando Kabushiki Kaisha Toshiba 1
#5439 Yoshinori Ishida Panasonic 1
#5439 Masakazu Miyazaki Astellas Pharma 1
#5439 Yuya Igarashi Shimizu 1
#5439 Mitsunari Sukekawa Micron 1
#5439 Takuji KAWAMURA Globeride 1
#5439 Tsuyoshi Muto Canon 1
#5439 Shozo Ishibashi Fuji Manufacturing Co. 1
#5439 Toru Osuga Nec 1
#5439 Satoko Itaya Nec 1
#5439 Hirokazu Atsumori Hitachi 1
#5439 Tatsuya Matano Elpida Memory 1
#5439 Takeshi Maeda Hitachi 1
#5439 Hikari Mochizuki Sato 1
#5439 Yoshimasa Koba Mitsubishi Electric 1
#5439 Atsuhiro Tokita Mitsubishi Gas Chemical Company 1
#5439 Hiromasa Hayashi Denso 1
#5439 Ryuta Yamazaki Yakult Honsha 1
#5439 Kazuya Maekawa Tdk 1
#5439 Yasunao MIYAMURA Showa Denko K.K. 1
#5439 Takaki Endo Sumitomo Electric Industries 1
#5439 Makihiro Otohata Nec 1
#5439 Yasunori Izawa Hoya Lens Thailand 1
#5439 Tetsujiro Tsunoda Kabushiki Kaisha Toshiba 1
#5439 Naoki Shibuya Sony 1
#5439 Toshio Ishii Hitachi 1
#5439 Yasuyuki Kawazu Asahi Kasei Kabushiki Kaisha 1
#5439 Kouichirou Maeda Zeon 1
#5439 Yoshinori Miyamoto Mitsubishi Electric 1