Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116082 | Electrofusion of electrofusion joint, method of confirming state of fusion and fusion joint suitable for use in the methods | Takayuki Handa | 1992-05-26 |
| 4994655 | Electro-fusion joint | Takayuki Handa | 1991-02-19 |
| 4489033 | Process for injection compression molding | Yasuo Kouno, Tadayoshi Shiomura | 1984-12-18 |