Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6374865 | Method and apparatus for manufacturing a header pipe | Seiji Mashiko | 2002-04-23 |
| 6324761 | Method and apparatus for manufacturing a header pipe | Seiji Mashiko | 2001-12-04 |
| 6266858 | Apparatus for manufacturing a header pipe | Seiji Mashiko | 2001-07-31 |
| 5996205 | Method for manufacturing a pipe with a partition | Seiji Mashiko | 1999-12-07 |
| 5927397 | Pipe with closure portion, heat exchanger header and method of producing therefor | Ryuji Yasuda, Hiroyuki Inaba | 1999-07-27 |
| 5884673 | Pipe | — | 1999-03-23 |
| 5799397 | Pipe with closure portion, heat exchanger header and method of producing therefor | Ryuji Yasuda, Hiroyuki Inaba | 1998-09-01 |