Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11201460 | Power source switch control device | Eiichiro Oishi | 2021-12-14 |
| 11186202 | Power supply device | Kazuo Sugimura, Kazuya Tsubaki, Eiichiro Oishi | 2021-11-30 |
| 11163325 | Power supply device | Kazuo Sugimura, Kazuya Tsubaki, Eiichiro Oishi | 2021-11-02 |
| 11147163 | Semiconductor module unit | Eiichiro Oishi | 2021-10-12 |
| 11117490 | Vehicle power supply device | Kazuya Tsubaki, Kazuo Sugimura, Eiichiro Oishi | 2021-09-14 |
| 11050268 | Power supply system | Eiichiro Oishi, Kazuo Sugimura, Kazuya Tsubaki | 2021-06-29 |
| 11050224 | Wire harness unit, power storage device unit, and wire harness | Kazuo Sugimura, Kazuya Tsubaki, Eiichiro Oishi, Shoichi Nomura | 2021-06-29 |
| 11047922 | Abnormality detection device | Eiichiro Oishi | 2021-06-29 |
| 10942202 | Current detection device and power supply device | Eiichiro Oishi | 2021-03-09 |