Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6871599 | Railway car | Sumio Okuno, Kazufumi Yamaji | 2005-03-29 |
| 6651567 | Railway car | Michifumi Takeichi, Kazuhiro Makino, Masaaki Shigeyama, Daisuke Muto | 2003-11-25 |
| 6550397 | Car body | Takeshi Kawasaki, Sumio Okuno, Toshiaki Makino, Kazufumi Yamaji | 2003-04-22 |
| 6394000 | Car body | Takeshi Kawasaki, Sumio Okuno, Toshiaki Makino, Kazufumi Yamaji | 2002-05-28 |
| 5287814 | Car body of railway rolling stock and method for fabricating car body | Seiichi Okamoto, Sumio Okuno, Keiji Ohmura | 1994-02-22 |
| 5188039 | Method of fixing inside panel of car and structure for fixing the same | Keiji Ohmura, Sumio Okuno, Hideshi Ooba, Senzoo Hida, Seiichi Okamoto | 1993-02-23 |