Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
Home › Cities › Tokyo, JP
Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.

Tokyo, JP 2025

23,000 patents  ·  13,130 inventors

Ranked #1 of 40,155 cities Top 1%

Tokyo, JP ranks #1 worldwide for total patents filed in 2025, with 23,000 patents from 13,130 inventors. Leading employers of inventors based in Tokyo, JP include Mitsubishi Chemical, Canon, Hitachi.

Showing 12,951–13,000 of 13,130 inventors

Rank Inventor Primary Company Patents
#4477 Masanori Yamazaki Mitsubishi Chemical 1
#4477 Masaya SUGIYAMA Mitsubishi Chemical 1
#4477 Reo Tagawa Canon 1
#4477 Makoto Anno Canon 1
#4477 Yoshiaki Deguchi Hitachi 1
#4477 Keiichi Osako Sony 1
#4477 Ryoh SHIMOMOTO Ricoh Company 1
#4477 Kazuhisa Takamura Sony 1
#4477 Kenich HASHIMOTO Soliton Systems K.K. 1
#4477 Toyokazu Tsutsuba Tokyo Institute Of Technology 1
#4477 Hiroto Morizane Hitachi 1
#4477 Akio SHIRASAKI Mitsubishi Electric 1
#4477 Yuta OKUMURA Mitsubishi Electric 1
#4477 Yusuke EBE Asahi Kasei Kabushiki Kaisha 1
#4477 Masaaki Shinohata Asahi Kasei Chemicals 1
#4477 Yutaro Chino Hobonichi Co. 1
#4477 Yukinari Yamashita Organo 1
#4477 Shintaro Nakayama Samsung 1
#4477 Kaifeng Zhang Hitachi High-Technologies 1
#4477 Takenori Hirose Hitachi 1
#4477 Tatsuya Hazuku National University Corporation Tokyo University Of Marine Science And Technology 1
#4477 Shigehiro Yoshimura Taiyo Nippon Sanso 1
#4477 Daiki Kayashima Mayekawa Mfg. Co. 1
#4477 Wataru Arai Mimaki Engineering Co. 1
#4477 Reiki Tada Stanley Electric Co. 1
#4477 Akihiko Hanya Stanley Electric Co. 1
#4477 Akihiko SHIBANO Nec 1
#4477 Junichi YAHARA Nec 1
#4477 Kento Soma Nec 1
#4477 Jun Asami Canon 1
#4477 Yosuke AKAMATSU Ihi 1
#4477 Kazuharu Hirokawa Mitsubishi Electric 1
#4477 Ryuta KAWAMATA — 1
#4477 Masanao Ito Hitachi 1
#4477 Akiyoshi KIRIMURA Hitachi Construction Machinery Co. 1
#4477 Ryota Enomoto Komatsu 1
#4477 Masataka SHIROZONO Mitsubishi Electric 1
#4477 Miyoko Tanaka Oji Holdings 1
#4477 Shiro YANO Toyota 1
#4477 Hirotomo Muroi Honda Motor Co. 1
#4477 Sota Matsuzawa Sony 1
#4477 Tenjiro HIWATARI Mitsubishi Electric 1
#4477 Takahiro Mabuchi Sumitomo Rubber Industries 1
#4477 Yasushi Yoneyama Dai Nippon Printing Co. 1
#4477 Hidehito Takayama — 1
#4477 Risa Watanabe Mitsubishi Chemical 1
#4477 Hiroyuki Tanaka — 1
#4477 Masaki Takiwaki Jeol 1
#4477 Riku Takemura Cygames 1
#4477 Akihiro NAITO The Japan Steel Works 1

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