Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674301 | Hydrogen preparing apparatus | Tomonori Takahashi | 1997-10-07 |
| 5614001 | Hydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separator | Shinichi Kosaka, Tomonori Takahashi, Takao Soma | 1997-03-25 |