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 Tgk Co., The University Of Tokyo, Ihi.

Showing 13,151–13,200 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Ohchang Kwon 1
#5439 Kotaka Tamotsu Tgk Co. 1
#5439 Hoang-Phuong Phan The University Of Tokyo 1
#5439 Takafumi Imazu Ihi 1
#5439 Yoichiro Kodan Mitsubishi Electric 1
#5439 Mitsuhiro Kawano Mitsubishi Electric 1
#5439 Kazuhisa Miyata 1
#5439 Toshio TOUNE Oki Data 1
#5439 Keiko SHIMAZAKI Toyota 1
#5439 Takayuki KUSAJIMA Toyota 1
#5439 Yoshihiro Rayama 1
#5439 Hironori Saisu Keio University 1
#5439 Tomoya NAGASAKA Fujifilm 1
#5439 Ryo Onozawa Subaru 1
#5439 Shinsuke Satake Jgc 1
#5439 Kuramoto Jin Staedtler Mars Gmbh & Co. Kg 1
#5439 Eiji Tsuru Bridgestone 1
#5439 Fumio Takeda Hitachi 1
#5439 Jun Oosuga Atago Co. 1
#5439 Kenichirou Endou The Yokohama Rubber Co. 1
#5439 Masanobu Soga Mitsubishi Electric 1
#5439 Toru Takeyama Mitsubishi Electric 1
#5439 Yuuki Kaneko Tgk Co. 1
#5439 Kenichiro Masaoka Fujifilm 1
#5439 Ryoichi OONAMI Oki Data 1
#5439 Hiromichi Sugiyama Sumitomo Bakelite Co. 1
#5439 Tetsuya Inotsuka Niles Co. 1
#5439 Wen Piao The University Of Tokyo 1
#5439 Motoaki Baba Sato Pharmaceutical Co. 1
#5439 Junichi Kodaira Topcon 1
#5439 Takumi Hatanaka Kyocera 1
#5439 Kenji Hachisu Sony 1
#5439 Hideyuki Shimaoka Sumitomo Bakelite Co. 1
#5439 Shohei Kishishita Chugai Pharmaceutical 1
#5439 Shingo Matsushima Tokyo University Of Science Foundation 1
#5439 Masaichi Yamamoto Arigen Pharmaceuticals 1
#5439 Junya Sakaguchi Showa Denko K.K. 1
#5439 Kenta Mochiduki Hitachi 1
#5439 Atsushi Kajiya Nippon Mektron 1
#5439 Yuzuru Ueda Fujitsu Limited 1
#5439 Kazuhiko Okishima Renesas Electronics 1
#5439 Dwi Antono Danardono Sony 1
#5439 Kouji Masaki Bridgestone 1
#5439 Mayumi Iwako Mitsubishi Materials 1
#5439 Toshiyuki ITAHANA Square Enix Co. 1
#5439 Kazuhito Ayukawa Renesas Electronics 1
#5439 Sachiko Miyauchi Ebara 1
#5439 Kazuhiro Kaneda Ebara 1
#5439 Jyunji KINOSHITA Hitachi 1
#5439 Takuji NAGAYOSHI Hitachi 1