Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2019, with 30,927 patents from 15,298 inventors. Leading employers of inventors based in Tokyo, JP include Japan Display West, Sony, Mitsubishi Electric.

Showing 13,051–13,100 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Ryoichi Tsuzaki Japan Display West 1
#6064 Yasuhito Tanaka Sony 1
#6064 Yuki Ichise Mitsubishi Electric 1
#6064 Naoki Kato Toyota 1
#6064 Ichiro Yogo Mitsubishi Heavy Industries Thermal Systems 1
#6064 Takatoshi Okabe Jfe Steel 1
#6064 Noriyuki Aoki Canon 1
#6064 Hideki Horizono Mitsubishi Electric 1
#6064 Takayuki Kuwahara Mitsubishi Electric 1
#6064 Hiroki Terashima Nec Solution Innovators 1
#6064 Kenichi Tajima Mitsubishi Electric 1
#6064 Gou Fukano Kabushiki Kaisha Toshiba 1
#6064 Katsuyuki Kamei Mitsubishi Electric 1
#6064 Minoru Sakata Asahi Kasei Chemicals 1
#6064 Kento HORINOUCHI Hitachi High-Technologies 1
#6064 Nobutaka Ono Osaka Bobbin Co. 1
#6064 Ayanori Koizumi Mitsubishi Electric 1
#6064 Motohiko Hidaka Nissan Chemical Industries 1
#6064 Yoshitaka Seki Honda Motor Co. 1
#6064 Dai Yoshii Mitsubishi Electric 1
#6064 Kyoko Yamamoto Sumitomo Chemical 1
#6064 Hiroaki Tanaka Serono Genetics Institute S.A. 1
#6064 Takuma Hayakawa Tdk 1
#6064 Keisuke Hanashima Agc 1
#6064 Tomohiro Morimura Hitachi 1
#6064 Yoshiyuki Michiaki Dowa Electronics Materials Co. 1
#6064 Takahiro Nishioka Mitsubishi Electric 1
#6064 Yuki Iijima Senju Metal Industry Co. 1
#6064 Yoshihiro Fujiyama Stanley Electric Co. 1
#6064 Futoshi Sakuragi Fujifilm 1
#6064 Akihiro Asano Toyota 1
#6064 Hiroshi Hatayama Asahi Kasei Chemicals 1
#6064 Keita Yoshikawa Ricoh Company 1
#6064 Gen Hamada Sony 1
#6064 Akihiro Ishiyama 1
#6064 Kenichiro Tadokoro Nippon Steel 1
#6064 Masataka Hiyoshi Nippon Steel Chemical 1
#6064 Ryutaro NITOBE Japan Display 1
#6064 Hideki Hosoda Tokyo Institute Of Technology 1
#6064 Yoshiaki Hirota Nippon Steel & Sumitomo Metal 1
#6064 Kazutoshi Kitagoh Toshiba Mitsubishi-Electric Industrial Systems 1
#6064 Manabu Matsuhashi Globeride 1
#6064 Norihisa Okada Hitachi 1
#6064 Sachiko Takeuchi Ricoh Company 1
#6064 Junichi Sugino Hitachi 1
#6064 Gento Morita Sony 1
#6064 Gakuji Higuchi Sony 1
#6064 Atsushi Hikoyama Advance Co. 1
#6064 Kei Hayashida Canon 1
#6064 Takashi Tsujimura Sony 1