Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137490 | Ventilating equipment for railway rolling stock and operating method thereof | Toshiharu Matsuda, Haruo Hirakawa, Hiroshi Higaki, Atsushi Ikio, Masakazu Matsumoto | 1992-08-11 |