Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10135631 | Electric equipment management apparatus, electric equipment management method, and electric equipment management system | Yoshiaki Koizumi | 2018-11-20 |
| 10117155 | Relay device and air conditioning system | Hiroaki KOTAKE, Yoshiaki Koizumi, Haruhiko Ishida | 2018-10-30 |
| 9973998 | Relay device and air conditioning system | Hiroaki KOTAKE, Yoshiaki Koizumi, Haruhiko Ishida | 2018-05-15 |