Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175799 | Process for producing hollow member | Izuru Hori, Kouki Mizutani, Manabu Maruyama, Kenji Miyanaga, Yuji Kanai | 2007-02-13 |
| 6433304 | Perforating machining method with laser beam | Tokuji Okumura, Kazushiro Wakabayashi, Hideshi Takekuma, Tsuneo Otake | 2002-08-13 |
| 6153853 | Laser beam welding apparatus | Iwao Maruyama, Kenji Makihara | 2000-11-28 |
| 5171960 | Direct-current resistance welding apparatus and method of controlling welding current thereof | Fumitomo Takano, Nobuo Kobayashi, Hitoshi Saito, Kenji Miyanaga | 1992-12-15 |