Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7021220 | Railway vehicle and method for operating vehicle | Masakazu Matsumoto | 2006-04-04 |
| 6269867 | Condenser and power plant | Fumio Takahashi, Yasuo Fujitani | 2001-08-07 |
| 5960867 | Condenser and power plant | Fumio Takahashi, Yasuo Fujitani | 1999-10-05 |
| 5694858 | Railway vehicle with micro pressure wave reducing contour for tunnel travel | Morishige Hattori, Kazuhiko Hiraoka, Hideshi Ooba | 1997-12-09 |
| 5205352 | Heat exchanger for condensing vapor into liquid phase, power generating plant using the heat exchanger and absorption refrigerator using the heat exchanger | Fumio Takahashi, Yasuo Fujitani, Michihiko Aizawa | 1993-04-27 |