Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sendai, JP ranks #546 worldwide for total patents filed in 2021, with 252 patents from 146 inventors. Leading employers of inventors based in Sendai, JP include Tohoku University, Japan Display, Sumitomo Electric Industries.

Showing 1–50 of 146 inventors

Rank Inventor Primary Company Patents
1 Tetsuo Endoh Tohoku University 11
2 Hiroyuki Kimura Japan Display 9
2 Seiji Takahashi Sumitomo Electric Industries 9
#4 Nobuyuki Ohba IBM 8
#4 Toru Nakayama Canon 8
#6 Issei Suzuki Fujifilm 6
#7 Akihiro Watanabe Kyocera Document Solutions 5
#7 Kosuke Yamaguchi Toto 5
#9 Shota Ito Gs Yuasa International 4
#9 Yuta Nakano Canon 4
#9 Toshihiro Omori Tohoku University 4
#9 Yuji Nabeshima Toyota 4
#13 Takahiro Hanyu Tohoku University 3
#13 Akihiko Chiba Tohoku University 3
#13 Kenji Araki Hitachi 3
#13 Yoshitaka Kimura Mitsubishi Electric 3
#13 Kiyoshi Nakamura Hitachi 3
#13 Tomohiro Moriya Fuji Electric Co. 3
#13 Koichi Kondo Brother Kogyo 3
#20 Tsuyoshi Yoshizawa Fuji Electric Co. 2
#20 Tomoya Kawada Walbro 2
#20 Yuji Hattori Toyota 2
#20 Shunsuke Fukami Nec 2
#20 Takeo Ebina National Institute Of Advanced Industrial Science And Technology 2
#20 Koshi Adachi Tohoku University 2
#20 Kiyohito Ishida Unknown 2
#20 Norio Onodera Alps Electric Co. 2
#20 Mikihiko Oogane Tohoku University 2
#20 Yukihiro Numata Toyobo Co. 2
#20 Toshiya Umeki Ngk Spark Plug Co. 2
#20 Yuui Yokota Tohoku University 2
#20 Masato Yoshida Hitachi Chemical Company 2
#20 Keietsu Abe National Institute Of Advanced Industrial Science And Technology 2
#20 Kei Kamada Tohoku Techno Arch Co. 2
#20 Hiroaki Shimokawa Tohoku University 2
#20 Hitoshi Nakata Fuji Electric Co. 2
#20 Junichi Nishizawa Unknown 2
#20 Hiroaki Honjo Tohoku University 2
#20 Masayuki Ohzeki Denso 2
#20 Masaaki Niwa Sumitomo Electric Industries 2
#20 Shunji Watanabe Seiko Instruments 2
#20 Hiroshi Yabu Panasonic 2
#20 Atsushi Tsuchida Yamaha 2
#20 Makoto Ishizaki Tdk 2
#20 Yasuo Ando Tohoku University 2
#20 Katsuya Gomi National Institute Of Advanced Industrial Science And Technology 2
#47 Tasuku Takagi Small Power Communication Systems Research Laboratories Co. 1
#47 Konosuke Taki Freeescale Semiconductor 1
#47 Hiroyuki Fukuyama NTT 1
#47 Hajime Mushiake Tohoku University 1