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 Renesas Electronics, Hitachi, Sony.

Showing 12,601–12,650 of 13,570 inventors

Rank Inventor Primary Company Patents
#5439 Hideki Matsuyama Renesas Electronics 1
#5439 Hiromi Satou Hitachi 1
#5439 Kentaro Koseki Hitachi 1
#5439 Ryoji HIROBE Hitachi 1
#5439 Koki Uchino Sony 1
#5439 Yusuke Shinozaki Dena Co. 1
#5439 Tadao Abe Kao 1
#5439 Yasushi Tomonaga Mitsubishi Electric 1
#5439 Yohei Kakiuchi Mitsubishi Electric 1
#5439 Kanako Suga Japanese Foundation For Cancer Research 1
#5439 Tetsuo Nakano Kyowa Hakko Kogyo Co. 1
#5439 Yasuyuki Oosawa NS Sumikin Engineering 1
#5439 Kiyoshi Nonaka National Institute Of Advanced Industrial Science And Technology 1
#5439 Kiyokazu Takahashi Higashio Mech Co. 1
#5439 Ken Nakakura Jsr 1
#5439 Tadahiro Sugiyama Casio Computer Co. 1
#5439 Hitoshi Honda Sony 1
#5439 Takenobu Dei Yahoo Japan 1
#5439 Nao MATSUOKA Toshiba Memory 1
#5439 Takahiro Satake Hitachi 1
#5439 Reiko Shimoda Taiyo Yuden Co. 1
#5439 Tomihiro Oguchi Pioneer Electronic 1
#5439 Yuzuko Baba Jvckenwood 1
#5439 Kanetoshi Tsumagari Citizen Machinery Co. 1
#5439 Tatsuya EGAMI Tachikawa 1
#5439 Mayumi Takanuki L'Oreal 1
#5439 Yuichi Asami Konami Digital Entertainment Co. 1
#5439 Hideyuki Komaki Lixil 1
#5439 Yoichi Ishigami Mitsubishi Electric 1
#5439 Yoshinobu Yoshikawa Mitsubishi Electric 1
#5439 Machiko Asaoka 1
#5439 Makiko Hara Sony 1
#5439 Hiroki Aritomo Tdk 1
#5439 Hironobu Matsuzawa Tdk 1
#5439 Sachio Miyashita 1
#5439 Tadao Morimoto Hitachi 1
#5439 Yoshihiro Hara Minolta Co. 1
#5439 Yasutaka Ohshima Denki Kagaku Kogyo 1
#5439 Eri Kosaka Jx Nippon Oil & Energy 1
#5439 Keiichiro Yoshihara Clarion Co. 1
#5439 Yo MIYAMOTO Clarion Co. 1
#5439 Takafumi Sumiyoshi Sumitomo Bakelite Co. 1
#5439 Masahiko Shioda Nissan Motor Co. 1
#5439 Yuuichi Shimizu Mitsubishi Electric 1
#5439 Seiichi Saito Mitsubishi Electric 1
#5439 Kiyonori Hinoki Tdk 1
#5439 Mitsuo Kougo Tdk 1
#5439 Eiichi Takahashi Alps Electric Co. 1
#5439 Sumii Tetsu Sony 1
#5439 Satoru Aizawa Takenaka 1