Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214306 | Filter device | Nobuyuki Kitajima, Mitsuhiro Yamaguchi | 2025-02-04 |
| 12025085 | Tank device | Nobuyuki Kitajima | 2024-07-02 |
| 11712643 | Filtration device | Masanori Wakabayashi, Shinya Hirose | 2023-08-01 |
| 11602705 | Filtration device | Masanori Wakabayashi, Shinya Hirose | 2023-03-14 |
| 10702808 | Filter device and filtration device | Nobuyuki Kitajima | 2020-07-07 |
| 10441899 | Filter apparatus | Makoto Ishizuka | 2019-10-15 |
| 7871517 | Filter device | Akiyoshi Komine | 2011-01-18 |
| 7718060 | Filter device | Akiyoshi Komine | 2010-05-18 |
| 7661539 | Liquid filtration device | Akiyoshi Komine | 2010-02-16 |