Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10389282 | DC power supply unit and air conditioner using same | Koji Tsukii, Atsushi Okuyama, Masahiro Tamura, Kenji Tamura | 2019-08-20 |
| 7133852 | Electricity generation equipment management system | Shigeaki Sato, Yoshiteru Misumi | 2006-11-07 |
| 6708505 | Air conditioner | Hiroo Nakamura, Hidenori Yokoyama, Masayuki Nonaka, Atsushi Ohtsuka | 2004-03-23 |