Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7986894 | Power supply device, fixing device and image forming apparatus | Tomofumi Yamashita, Hiroyuki Shinohara, Shoji Totsuka, Nobuyuki Shigeyama | 2011-07-26 |
| 4642549 | Ferroresonant constant AC voltage regulator | Kosuke Harada, Takazi Nakamizo | 1987-02-10 |
| 4626983 | Power conversion device for solar cell | Kosuke Harada, Takazi Nakamizo | 1986-12-02 |
| 4556802 | Uninterruptible ac power supply | Kosuke Harada, Takazi Nakamizo | 1985-12-03 |
| 4553199 | High frequency power supply device | Koosuke Harada | 1985-11-12 |