Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10404178 | Insulation type step-up converter | Koji Nakajima, Takashi Kumagai, Yuji Shirakata | 2019-09-03 |
| 10199159 | Insulation type step-down coverter | Koji Nakajima, Takashi Kumagai, Yuji Shirakata | 2019-02-05 |
| 10128038 | Isolation transformer | Kodai KATAGIRI, Takuto Yano, Atsutoshi Takada, Yuji Sugaya | 2018-11-13 |
| 9960697 | Insulation type step-down converter | Koji Nakajima, Takashi Kumagai, Yuji Shirakata | 2018-05-01 |
| 9941044 | Insulation type step-down converter | Koji Nakajima, Takashi Kumagai, Yuji Shirakata, Kenji NISHIZAKA | 2018-04-10 |