Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364894 | Method for molding a reinforced plastic tubular body having a socket, and mold therefore | Takeshi Okuyama, Kenji Mitooka | 1982-12-21 |
| 4345625 | Pipe joints of reinforced resin and process for their molding | Kenji Mitooka, Sigeharu Fujiwara | 1982-08-24 |