Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326580 | Method of fabricating a structural member by electro slag forming | Takeshi Wada | 1982-04-27 |
| 4228336 | Method of manufacturing stay ring for water turbine and pump turbine | Masao Ishihara, Takeshi Wada | 1980-10-14 |
| 4208564 | Nozzle structure of electroslag welding machines | Takeshi Wada, Hisanao Kita, Yoshio Namatame, deceased | 1980-06-17 |