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USPTO Patent Rankings Data through Dec 31, 2025
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Sumida — 13 Patents in 2020

Rank (2020): #2,868 of 32,409Top 9%
21 inventors
13 Patents 2020

Top Inventors at Sumida 2020

Showing 1–21 of 21 inventors

RankNamePatents
1 Mitsugu Kawarai 3
1 Shinichi Sakamoto 3
3 Douglas James Malcolm 2
3 Hiroyuki Miyazaki 2
3 Kei Tanaka 2
3 Motomi Takahashi 2
3 Shuichi Kikuchi 2
3 Takanobu Rokuka 2
3 Tsutomu Otsuka 2
#10 Akihiko Nakamura 1
#10 Daichi GEMBA 1
#10 Fumio Uchikoba 1
#10 Jiayu Chen 1
#10 Junji Morita 1
#10 Juichi Oki 1
#10 Naoki Sasaki 1
#10 Satoru Yamada 1
#10 Teruaki Tanaka 1
#10 Tomoaki Asari 1
#10 Tomohiro KAJIYAMA 1
#10 Tomoyuki Kaneko 1