Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5762131 | Heat radiating board and method for cooling by using the same | Masami Kujirai, Yukio Kujirai | 1998-06-09 |
| 5744225 | Heat insulating board and method for heat insulation by using the same | Masami Kujirai, Yukio Kujirai | 1998-04-28 |
| 5519964 | Composite plastic film and greenhouse built therewith | Masami Kujirai, Yukio Kujirai | 1996-05-28 |