Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049458 | Fuel cell | Yoshio Sato, Hirotaka Nakagawa, Hiroshi Mihara, Shigeyoshi Kosuge, Hiroshi Tsuneizumi | 1991-09-17 |
| 4937152 | Fuel cell | Yoshio Sato, Hiroshi Tsuneizumi, Hirotaka Nakagawa, Hiroshi Mihara | 1990-06-26 |
| 4753424 | Method of clamping rails for pressure welding the same and clamping apparatus therefor | Yukihiko Sato, Saburo Mori, Masaharu Sekino, Akio Mitsui | 1988-06-28 |
| 4672173 | Gas-shielded arc welding apparatus | Hirokazu Nomura, Yukihiko Sato, Yasuhiko Nishi, Mizuho Higurashi, Saburo Mori | 1987-06-09 |
| 4573666 | Apparatus for quenching butt-welded portion of rail | Hirokazu Nomura, Yukihiko Sato | 1986-03-04 |