Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9837888 | Boost control apparatus based on output current change amount | Toshifumi Yamakawa, Masaki Okamura | 2017-12-05 |
| 9825529 | Voltage conversion control apparatus for a boost converter configured to boost or step down output voltage of an electricity storage apparatus | Masaki Okamura, Toshifumi Yamakawa | 2017-11-21 |
| 9669727 | Electrical source control apparatus | Masaki Okamura, Takaji Umeno, Shuji Tomura, Masanori Ishigaki, Naoki Yanagizawa | 2017-06-06 |
| 9553541 | Electric motor control apparatus | Toshifumi Yamakawa, Masaki Okamura | 2017-01-24 |