Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019257 | Parallel filtering circuit with conduits of different rates | Tadashi Suzuki | 1991-05-28 |
| 4968425 | Filter of depth layer type | Yoshiaki Nakajima, Tadashi Suzuki | 1990-11-06 |
| 4852693 | Lubrication monitoring apparatus for machine | Yoshiaki Nakajima, Tadashi Suzuki | 1989-08-01 |
| 4655914 | Method and apparatus for filtering impurities out of fluid | — | 1987-04-07 |
| 4645597 | Filter medium and method of manufacturing the same | — | 1987-02-24 |
| 4239627 | Filtering member and method for manufacturing the same | — | 1980-12-16 |