Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6613467 | Polymer electrolyte fuel cells system | Hiroshi Chizawa, Kazuo Saito, Mitsushi Ueno | 2003-09-02 |
| 6572994 | Polymer electrolyte fuel cell system | Soichiro Shimotori, Makoto Harada, Kazuo Saito, Atsushi Ohma, Atsuo Sonai +1 more | 2003-06-03 |