Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kasuga, JP ranks #9,162 worldwide for total patents filed in 2021, with 9 patents from 8 inventors. Leading employers of inventors based in Kasuga, JP include Semiconductor Energy Laboratory, Clear, Sumitomo Electric Industries.

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Tetsuo Tsutsui Semiconductor Energy Laboratory 2
2 Takehiko Yokomine Clear 1
2 Tadashi Shimotoso Sumitomo Electric Industries 1
2 Koichi Eguchi Fujifilm 1
2 Naomi SHIRAI I-Pro Co. 1
2 Takashi Haruguchi Panasonic 1
2 Sumio Tate Sumitomo Electric Industries 1
2 Akihiro Matsubara Sumitomo Electric Industries 1