Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11772032 | Filter unit quality management system and filter unit quality management method | Rei Takei, Yoshiyuki Doi, Hiroyuki Katayama | 2023-10-03 |
| 10226726 | Intake air filter device, filter replacement method of intake air filter device, and gas turbine | Eiji Naito, Hiroyuki Katayama | 2019-03-12 |
| 9970358 | Exhaust flue | Tei Yamato, Yoshifumi Masuda, Kazufumi Ikeda, Takanori Ito, Tomonori Toda | 2018-05-15 |
| 8863894 | Silencer and rotating machine equipped therewith | Eigo KATO, Hideyuki Morita | 2014-10-21 |
| 7048501 | Dust collecting filter, dust collecting device, and air intake device for gas turbine | Hiroyuki Katayama, Yoshiyuki Doi, Tatsuo Adachi, Satoshi Hara | 2006-05-23 |
| 7025802 | Filter control method, and filter controlled by the method | Kazuya Ushioda, Yoshiyuki Doi | 2006-04-11 |
| 6602328 | Gas turbine suction air filter, a gas turbine using the same and a method for using the same | Yoshiyuki Doi, Katsutoshi Okuno, Shigeru Maehata, Kenji Isohasi, Tatsuo Adachi +1 more | 2003-08-05 |