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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sendai, JP ranks #5,095 worldwide for total patents filed all time, with 521 patents from 11 inventors. Leading employers of inventors based in Sendai, JP include Fujitsu Limited, Hitachi, Central Japan Railway Comany.

Showing 1–11 of 11 inventors

Rank Inventor Primary Company Patents
1 Hideo Sato Fujitsu Limited 322
2 Tetsuo Ito Hitachi 63
3 Takafumi Fukushima Central Japan Railway Comany 30
#4 Toru Abiko Sony 26
#5 Takeshi Seki NTT 23
#6 Hidemi Kato Tohoku Techno Arch Co. 16
#7 Yasuhiro Shibuya Fujitsu Limited 12
#8 Norio Yokoyama Sony 9
#9 Noritsugu Umehara National University Corporation Nagoya University 8
#10 Fumihiko Hoshino Toyota Central R&D Labs 6
#10 Takahiko Taniguchi Chisso 6