Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11364467 | Desulfurization device | Satoru Sugita, Tetsu Ushiku, Ryozo Sasaki, Naoyuki Yoshizumi, Seiji Kagawa | 2022-06-21 |
| 10953363 | Method for installing spray pipe | Satoru Sugita, Tetsu Ushiku, Ryozo Sasaki, Naoyuki Yoshizumi, Seiji Kagawa | 2021-03-23 |
| 10471382 | Air pollution control system | Seiji Kagawa, Naoyuki Kamiyama, Tetsu Ushiku | 2019-11-12 |
| 10436096 | Heat exchanger and method for controlling heat exchanger | Seiji Kagawa, Naoyuki Kamiyama, Tetsu Ushiku | 2019-10-08 |
| 10139033 | Resin coating layer and life-extension method for piping | Hideaki Sakurai, Seiji Kagawa, Takuya Okamoto | 2018-11-27 |
| 10024609 | Steel covering layer and method of surface treatment of heat transfer tube | Hideaki Sakurai, Seiji Kagawa, Takuya Okamoto | 2018-07-17 |
| 9714882 | Leakage inspection method of heat exchanger | Naoyuki Kamiyama, Takuya Okamoto, Yuichiro Sato | 2017-07-25 |