Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
SK

Seiji Kagawa — 4 Patents in 2021

MPMitsubishi Power: 3 patents #16 of 349Top 5%
MCMitsubishi Shipbuilding Co.: 1 patents #1 of 18Top 6%
UNUnknown: 1 patents #344 of 3,329Top 15%
Overall (2021): #40,645 of 548,734Top 8%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10967327 Spray drying system Toshihiro Fukuda, Satoru Sugita, Tetsu Ushiku 2021-04-06
10953363 Method for installing spray pipe Satoru Sugita, Tetsu Ushiku, Ryozo Sasaki, Naoyuki Yoshizumi, Tsuyoshi Miyachi 2021-03-23
10940618 Apparatus for producing microporous plastic film Yoichiro Kagawa 2021-03-09
10926217 Ship desulfurization device and ship equipped with ship desulfurization device Ryozo Sasaki, Tetsu Ushiku, Satoru Sugita, Tatsuto Nagayasu, Naoyuki Kamiyama +1 more 2021-02-23