Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283419 | Arc welding machine and method | Seigo Hagiwara, Akihiko Kitajima | 1994-02-01 |
HO
Hidetoshi Ooyama
Overall (All Time): #3,789,943 of 4,157,543Top 95%
1
Patents All Time