Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7003970 | Power module and air conditioner | Shinji Ehira | 2006-02-28 |
| 6288001 | Graphite-containing monolithic refractory material | Yoshisato Kiyota, Masato Kumagai, Masao Nanbu, Shigenobu Takata, Noboru Komatsubara +1 more | 2001-09-11 |
| 6137700 | Converter with a high power factor using a DC center point voltage | Reiji Kawashima | 2000-10-24 |