Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4527045 | Control apparatus for an arc welder | Jun Nakajima, Tadashi Aso, Kiyoshi Kawamata, Kinji Sugimoto | 1985-07-02 |
| 4242620 | Automatic welding line tracing method and apparatus | Osamu Fujiwara, Tsugio Udagawa | 1980-12-30 |
| 4205217 | Automatic weld line copying apparatus | Tsugio Udagawa | 1980-05-27 |
| 4192986 | Method and apparatus for automatic weld line tracing | Tsugio Udagawa, Takashi Yoshida | 1980-03-11 |