Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848599 | Container closure provided with air pump mechanism | Tsurusaburo Okamura, Seiji Fukushi, Fumio Kinoshita | 1989-07-18 |
| D302005 | Battery | Toshiaki Kizawa, Koichi Sato, Hayashi Hayakawa | 1989-07-04 |