Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591478 | Desiccant, method for producing the same and method for using the same | Takahisa Tokunaga, Junko Kajihara, Masao Hirayama, Hayami Itoh, Masao Hayashitani +2 more | 1997-01-07 |