Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10953363 | Method for installing spray pipe | Satoru Sugita, Tetsu Ushiku, Naoyuki Yoshizumi, Tsuyoshi Miyachi, Seiji Kagawa | 2021-03-23 |
| 10926217 | Ship desulfurization device and ship equipped with ship desulfurization device | Tetsu Ushiku, Satoru Sugita, Tatsuto Nagayasu, Seiji Kagawa, Naoyuki Kamiyama +1 more | 2021-02-23 |