Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5090132 | Method and apparatus for freeze drying | Masakazu Kobayashi | 1992-02-25 |
| 4802286 | Method and apparatus for freeze drying | Masakazu Kobayashi, Hiroichi Ariyama | 1989-02-07 |