Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314326 | Mold having a resin well forming a weld at the union of two separate resin streams | Yukihisa Kumagai | 1994-05-24 |
| 5225136 | Injection molding method forming strengthened weld by using well | Yukihisa Kumagai | 1993-07-06 |
| 5041258 | Injection process for long fiber-containing resin | Makoto Iiyama, Naotoshi Inamura | 1991-08-20 |