Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809942 | System interconnection electric power generator and control method therefor | Keigo Onizuka, Yasuhiro Makino, Masanori Kobayashi | 2004-10-26 |
| 6285572 | Method of operating a power supply system having parallel-connected inverters, and power converting system | Keigo Onizuka, Isao Morita, Yasuhiro Makino | 2001-09-04 |
| 6082122 | Method for calibrating a measured value of detecting means | Keigo Onizuka, Isao Morita, Hisashi Tokizaki | 2000-07-04 |
| 6058035 | Method and apparatus for supplying AC power to commercial power line by using sunlight | Keigo Onizuka, Hisashi Tokizaki, Isao Morita | 2000-05-02 |
| 6046919 | Solar power generating device | Keigo Onizuka, Isao Morita, Hisashi Tokizaki | 2000-04-04 |
| 5973491 | System interconnection generator | Keigo Onizuka, Hisashi Tokizaki | 1999-10-26 |
| 5835383 | System-interconnected generator for converting solar energy to AC power | Keigo Onizuka, Hisashi Tokizaki | 1998-11-10 |