Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638636 | Method and apparatus for plant culture | Kazuo Hiyama, Howard K. Hiyama | 1997-06-17 |
| 5337514 | Method and apparatus for plant culture | Kazuo Hiyama, Howard K. Hiyama | 1994-08-16 |
| 5144768 | Method and apparatus for plant culture | Kazuo Hiyama, Howard K. Hiyama | 1992-09-08 |
| 4480402 | Method and apparatus for plant culture | Kazuo Hiyama, Howard K. Hiyama | 1984-11-06 |