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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Itabashi, JP ranks #7,503 worldwide for total patents filed in 2021, with 12 patents from 11 inventors. Leading employers of inventors based in Itabashi, JP include Kabushiki Kaisha Toshiba, Gc, Topcon.

Showing 1–11 of 11 inventors

Rank Inventor Primary Company Patents
1 Ken Hatano Kabushiki Kaisha Toshiba 2
2 Kiyotaka Nakao Gc 1
2 Ken'ichiro Yoshino 1
2 Hirokazu Onji Topcon 1
2 Shuji KARIYA Gc 1
2 Hirofumi Matsuzawa IBM 1
2 Tomohiro Sakurada Topcon 1
2 Junki Kaneko Topcon 1
2 Yukio Kozaki Ricoh Company 1
2 Masayuki Momiuchi Topcon 1
2 Nobutoshi Orita Tok Bearing Co. 1