Issued Patents 2023
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11841163 | Silencing system | Yoshihiro SUGAWARA, Shinya Hakuta, Akihiko OHTSU, Kazuhiro Oki | 2023-12-12 |
| 11835253 | Silencing system | Yoshihiro SUGAWARA, Shinya Hakuta, Akihiko OHTSU, Kazuhiro Oki | 2023-12-05 |
| 11795974 | Blower with silencer and moving object with propeller | Shinya Hakuta, Yoshihiro SUGAWARA, Akihiko OHTSU | 2023-10-24 |
| 11749248 | Soundproof structure | Shinya Hakuta | 2023-09-05 |
| 11741928 | Soundproof structure | Shinya Hakuta | 2023-08-29 |
| 11705099 | Soundproof structure | Shinya Hakuta | 2023-07-18 |
| 11682374 | Soundproof structure body | Akihiko OHTSU, Shinya Hakuta, Yoshihiro SUGAWARA | 2023-06-20 |
| 11654841 | Box-shaped soundproof structure and transportation apparatus | Shinya Hakuta | 2023-05-23 |
| 11636839 | Soundproof structure body | Akihiko OHTSU, Yoshihiro SUGAWARA, Shinya Hakuta | 2023-04-25 |
| 11580948 | Soundproof system | Akihiko OHTSU, Shinya Hakuta | 2023-02-14 |
| 11551656 | Soundproof structure | Shinya Hakuta, Takafumi Hosokawa | 2023-01-10 |
| 11543152 | Ventilation duct line assembly and apparatus | Koichi Kumeta, Fuyuki KOKUBU, Shinya Mitourida, Koh Umenai, Shinya Hakuta +1 more | 2023-01-03 |