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 Ricoh Company, Ebara, Hosokawa Yoko Co..

Showing 13,451–13,500 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Hiroyuki Kanda Ricoh Company 1
#5439 Keita Yagi Ebara 1
#5439 Takuma Iwasaki Ricoh Company 1
#5439 Kazuhiro Umenaka Hosokawa Yoko Co. 1
#5439 Takahiko Shimizu Honda Motor Co. 1
#5439 Wataru Nagatomo Hitachi High-Technologies 1
#5439 Toshiki Miyajima Honda Motor Co. 1
#5439 Yosuke Okamura NTT 1
#5439 Kentaro Doba Sony 1
#5439 Tatsuaki Orihara Canon 1
#5439 Kunihiko Toumura Hitachi 1
#5439 Yuko Imai Canon 1
#5439 Hironobu Akizumi Tokuyama Dental 1
#5439 Ryoji Hattori Konica 1
#5439 Kyoji Hamamoto Honda Motor Co. 1
#5439 Ichiro Fujita Showa Denko K.K. 1
#5439 Seigo Kase Olympus 1
#5439 Hiroyuki Kobayashi Daiichi Sankyo Company, Limited 1
#5439 Keita Masuda Kabushiki Kaisha Toshiba 1
#5439 Shiori Yonezawa Canon 1
#5439 Masayuki Tsunekawa Dai Nippon Printing Co. 1
#5439 Ryuji Doi Toppan Printing Co. 1
#5439 Yuji Nagatani Honda Motor Co. 1
#5439 Masaru Kono Seiko Epson 1
#5439 Shinichi Kawada Hitachi Automotive Systems 1
#5439 Tetsuyuki TSUCHIDA Toppan Printing Co. 1
#5439 Takahiro Kambe Yokogawa Electric 1
#5439 Tatsuya Ryuzaki Honda Motor Co. 1
#5439 Yoshiaki Tsukada Honda Motor Co. 1
#5439 Masaki Satou Nisshin Steel Co. 1
#5439 Hirotaka Minagawa Nec Solution Innovators 1
#5439 Yutaka Ohki Furukawa Electric Co. 1
#5439 Satoko Miki Mitsubishi Electric 1
#5439 Keigo Kasuya 1
#5439 Hideaki Ishizu Satake 1
#5439 Kenya Sugihara Mitsubishi Electric 1
#5439 Kazuya Yokota Mazda Motor 1
#5439 Shingo Yamasue Mitsubishi Electric 1
#5439 Yukio Ichikawa Sony 1
#5439 Shoshiro Saruta Canon 1
#5439 Shunsuke Endo Mitsubishi Electric 1
#5439 Akihito Okumura Seiko Instruments 1
#5439 Ryoichi Sasaki Hitachi 1
#5439 Takeshi Hosoya Fujikoki 1
#5439 Keita Nagai Canon 1
#5439 Jun Narushima Hitachi 1
#5439 Yuji Iwahashi Sony 1
#5439 Shuto Ono Tdk 1
#5439 Hiromu Ohara Konica 1
#5439 Masashi TAKAHATA Japan Display 1