Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5114508 | Filter element and its production | Akihisa Inoue, Taisuke Otsubo, Yoshihiro Hori | 1992-05-19 |
| 4826519 | Multilayer filter element | Akihisa Inoue, Taisuke Ootsubo, Shoichi Fujimori | 1989-05-02 |
| 4722792 | Filter for centrifugal separator | Shigeaki Matsui, Yoshiro Hirajima | 1988-02-02 |
| 4663041 | Fluorocarbon filter element | Akihisa Inoue, Katushi Hamada, Shoichi Fujimori, Yoshihiro Hori | 1987-05-05 |
| 4588464 | Method of producing a fluorocarbon filter element | Akihisa Inoue, Katushi Hamada, Shoichi Fujimori, Yoshihiro Hori | 1986-05-13 |