Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7625545 | Process for producing carbon nanotubes by arc discharge | Yasuhiko Nishi, Hirotaka Mukai | 2009-12-01 |
| 6150631 | Method of detecting root gap and arc welding method using the former | Yuji Sugitani, Yoshihiro Kanjo, Hitoshi Serizawa, Masatoshi Murayama, Naoyuki Gotoh | 2000-11-21 |
| 5543600 | Lattice welding robot and method for the lattice welding | Masatoshi Murayama, Yuji Sugitani | 1996-08-06 |