Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492054 | Polymer electrolyte fuel cell including a water-retaining layer on a ribbed plate | Mitsuo Karakane, Takashi Yasuo, Shigeru Sakamoto, Yasuo Miyake, Ikuo Yonezu +1 more | 2002-12-10 |