Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11642735 | Power supply system, power supply device, and control method | Hirokazu Kawai, Songjie Hou, Futoshi Nishisaka | 2023-05-09 |
| 11213908 | Wire feeding device, arc welding device and wire feeding method | Hirokazu Kawai, Futoshi Nishisaka, Kazutoshi Nagami, Masahiro Inoue, Hisao Miyahara +1 more | 2022-01-04 |
| 11045893 | Power supply system, power supply device, and control method | Hirokazu Kawai, Songjie Hou, Hideo Shiozaki, Satoru Hata, Hiroyasu Mondori +1 more | 2021-06-29 |
| 10610947 | Power supply system and power supply device | Hirokazu Kawai, Songjie Hou, Hideo Shiozaki, Satoru Hata, Hiroyasu Mondori +2 more | 2020-04-07 |
| 9143048 | Power supply device and arc machining power supply device | Tetsuya Etoh | 2015-09-22 |
| 8804375 | PWM-PSM controlled power supply with auxiliary switching circuit for soft-switching | Tetsuya Etoh, Hirotsune Tajima, Kazutoshi Nagami, Masayoshi Kureha | 2014-08-12 |
| 8462505 | Power supply apparatus including fan for air cooling | Kazutoshi Nagami, Toshimitsu Doi, Hirotsune Tajima, Tetsuya Etoh, Masayoshi Kureha +1 more | 2013-06-11 |
| RE39926 | Arc-machining power supply with switching loss reducing element | Keiki Morimoto, Toshimitsu Doi | 2007-11-27 |
| 7042740 | Soft-switching half-bridge inverter power supply system | Keiki Morimoto, Toshimitsu Doi, Kazuhiro Tanaka, Hirokazu Ioroi | 2006-05-09 |
| 6687136 | Arc-machining power supply with switching loss reducing element | Keiki Morimoto, Toshimitsu Doi | 2004-02-03 |