Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10116352 | Communication system, transmission device, and reception device | Hiroaki KOTAKE, Yoshiaki Koizumi, Takuya Mukai | 2018-10-30 |
| 10057384 | Signal conversion system and signal conversion method | Satoshi Endo, Yoshiaki Koizumi | 2018-08-21 |
| 9995772 | Current measurement device and current calculation method | Hiroaki KOTAKE, Yoshiaki Koizumi | 2018-06-12 |
| 9869704 | Power measurement device, determination method, and recording medium for identification of current detection element disposed in an incorrect direction | Yoshiaki Koizumi | 2018-01-16 |