Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6562505 | Sealing structure of cell tube | Hiroshi Tsukuda, Yoshiharu Watanabe, Tohru Houjyou | 2003-05-13 |
| 6534211 | Fuel cell having an air electrode with decreased shrinkage and increased conductivity | Hiroshi Tsukuda, Yoshiharu Watanabe, Tohru Houjyou | 2003-03-18 |