Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808836 | Air supply system for fuel cell | Ryuta Kawaguchi, Masato Sowa, Takashi Ban | 2004-10-26 |
| 6790697 | Optical semiconductor device and method of fabricating the same | Fumihiko Kobayashi, Takeo Miyazawa, Jun Nakano | 2004-09-14 |