Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694858 | Railway vehicle with micro pressure wave reducing contour for tunnel travel | Iwao Harada, Morishige Hattori, Kazuhiko Hiraoka | 1997-12-09 |
| 5188039 | Method of fixing inside panel of car and structure for fixing the same | Keiji Ohmura, Sumio Okuno, Kentaro Masai, Senzoo Hida, Seiichi Okamoto | 1993-02-23 |