Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818453 | Process for making porous resin and molded product containing continuous holes | Shigeru Kiriyama, Kazuhiro Imada | 1989-04-04 |
| 4783489 | Manufacturing process of porous resin mold containing continuous holes and casting mold | Shigeru Kiriyama, Kazuhiro Imada | 1988-11-08 |