Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820442 | Preservative composition | Shigeru Ohno, Seiichi Umeda | 1989-04-11 |
| 4799449 | Coating apparatus | Katsuaki Miyata, Yutaka Sakuma, Masakazu Gotou, Hiromu Shirakawa, Takamoto Makino | 1989-01-24 |