Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722285 | Railway car | Hideyuki Nakamura, Sumio Okuno, Toshiaki Sagawa | 2004-04-20 |
| 6712007 | Railway car | Takahisa Yamamoto, Sumio Okuno, Yoshihiko Ina | 2004-03-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722285 | Railway car | Hideyuki Nakamura, Sumio Okuno, Toshiaki Sagawa | 2004-04-20 |
| 6712007 | Railway car | Takahisa Yamamoto, Sumio Okuno, Yoshihiko Ina | 2004-03-30 |