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 Dai Nippon Printing Co., Korea Atomic Energy Research Institute, Mitsubishi Electric.

Showing 13,551–13,570 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Masato Yuno Dai Nippon Printing Co. 1
#5439 Ju-Myung Song Korea Atomic Energy Research Institute 1
#5439 Masatomo Hatta Mitsubishi Electric 1
#5439 Masaru Ogiwara Mitutoyo 1
#5439 Toshihiro Nishizawa Nec 1
#5439 Takayuki Amano Mitsubishi Electric 1
#5439 Shinya Kawanaka IBM 1
#5439 Yosaku Toyama Dena Co. 1
#5439 Yoshio Fukamatsu Seidensha Electronics Co. 1
#5439 Junpei Mizobata Mitsubishi Electric 1
#5439 Hirofumi Imanishi Subaru 1
#5439 Tomohiro Nakae Mitsubishi Electric 1
#5439 Itatu Nishizawa Hitachi 1
#5439 Atsushi Tokuno Advantest 1
#5439 Takanori TAMAKI Kanagawa Institute Of Industrial Science And Technology 1
#5439 Masaya Sakai Mitsubishi Electric 1
#5439 Yuji Hayami Sumitomo Osaka Cement Co. 1
#5439 Kayoko Sato Oki Electric Industry Co. 1
#5439 Choonok Park Technology Partners 1
#5439 Chieko Ogawa Olympus 1