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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ichihara, JP ranks #4,015 worldwide for total patents filed in 2021, with 28 patents from 6 inventors. Leading employers of inventors based in Ichihara, JP include Toyota, Ricoh Company, Dow Corning Toray Co..

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Masaki Ito Toyota 12
2 Masayuki Hayashi Ricoh Company 5
3 Akira Hoshino Toyota 4
3 Seiji Hori Dow Corning Toray Co. 4
#5 Takashi Furusawa Dic 2
#6 Akiyoshi Tamai Toray Industries 1