Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sendai, JP ranks #9,339 worldwide for total patents filed all time, with 220 patents from 8 inventors. Leading employers of inventors based in Sendai, JP include Tohoku University, Komag, Fujitsu Limited.

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Shoji Ikeda Tohoku University 73
2 Tsutomu Yamashita Komag 48
3 Makoto Shizukuishi Fujitsu Limited 39
#4 Mitsumasa Koyanagi Tohoku University 25
#5 Hiroshi Iwabuchi Fujifilm 17
#6 Masato Otani Nitto Chemical Industry Co. 9
#7 Yahong Wang Petrochina Company Limited 7
#8 Toshihiko Ogura Japan Science And Technology Agency 2

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