Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6555785 | Welding condition inputting equipment | Atsuhiro Kawamoto, Akihiko Kitajima, Kunio Kubo, Koji Hamamoto, Shigeki Yonemori +1 more | 2003-04-29 |
| D445812 | Welding machine | Masaki Shimizu, Akihiko Kitajima, Koji Hamamoto, Yoshiyuki Tabata, Tsutomu Naito | 2001-07-31 |
| 5852278 | Arc welding and arc plasma cutting machines having improved DC high-voltage generator | Yoshiaki Tanaka, Seigo Hagiwara, Kazuo Kimoto, Naoki Kawai | 1998-12-22 |
| 5611950 | Arc welding power source | Masamitsu Tochino | 1997-03-18 |