Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863524 | Method of cleaning the interior of polymerization reactor | Takamichi Komabashiri, Toragoro Mitani, Hiroaki Yamauchi | 1989-09-05 |
| 4805650 | Apparatus for cleaning a tank-like vessel | Toragoro Mitani, Takamichi Komabashiri | 1989-02-21 |