Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12334808 | Drive device, drive method, and power conversion device | Ryoga KIGUCHI | 2025-06-17 |
| 12336094 | Wiring board and power conversion apparatus | Ryoga KIGUCHI | 2025-06-17 |
| 12212224 | Driving apparatus | Ryoga KIGUCHI | 2025-01-28 |
| 11955791 | Short-circuit detector and power converter | Natsuko Takeuchi, Kunio Matsubara | 2024-04-09 |
| 10707776 | 3-level power conversion circuit including serially-connected switching element and diode | Kansuke Fujii | 2020-07-07 |
| 10312727 | Power supply device | Hiroyuki Kobayashi | 2019-06-04 |
| 10123443 | Semiconductor device | Hideyo Nakamura, Ryuji Yamada | 2018-11-06 |
| 10003273 | Power conversion device | — | 2018-06-19 |
| 9543928 | Gate driving circuit and method for driving semiconductor device | Keisuke Yamashiro | 2017-01-10 |
| 9520807 | Power converter that delays state changes of on/off pulses and control method thereof | — | 2016-12-13 |
| 7719092 | Power semiconductor module | — | 2010-05-18 |
| 7425757 | Semiconductor power module | — | 2008-09-16 |
| 5077651 | Snubber circuit of power converter | Shinichi Kobayashi, Masakazu Yoshida | 1991-12-31 |
| 5055990 | Snubber circuit for power conversion semiconductor elements and assembly thereof | Hiroshi Miki, Yoshitaka Fujiwara, Kiyoshi Iida, Kunio Shibayama, Shinichi Kobayashi | 1991-10-08 |