Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435567 | Coupling structure for tube | Yoshiyuki Koizumi | 2002-08-20 |
| 6398270 | Corrugated pipe joint | Kouki Fukui, Hiroyuki Amatsutsu | 2002-06-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435567 | Coupling structure for tube | Yoshiyuki Koizumi | 2002-08-20 |
| 6398270 | Corrugated pipe joint | Kouki Fukui, Hiroyuki Amatsutsu | 2002-06-04 |