Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851601 | Processing for producing hydrocarbon oils from plastic waste | Takashi Fukuda, Kiyoshi Saito, Hideki Sato, Toshio Hirota | 1989-07-25 |
| 4808871 | Draining device for a rotating electric machine | Akira Morishita, Tatsuo Yabe | 1989-02-28 |