Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10617986 | Air-permeable filter provided with oil repellency | Keiko FUJIWARA, Yuta Kuroki, Hajime Yamamoto | 2020-04-14 |
| 9508971 | Gas-permeable filter provided with oil repellency | Yoshiki Ikeyama, Nobuaki Maruoka, Naofumi KOSAKA | 2016-11-29 |
| 9254467 | Oil repellency-imparted air-permeable filter with adhesive layer | Nobuaki Maruoka, Yoshiki Ikeyama, Ryota Masuda | 2016-02-09 |