Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8558507 | Secondary battery storage system rack with fire extinguisher device | Hiroto Nagano, Yoshiyuki Ishizuka, Takeshi Nakashima, Takehito Ike | 2013-10-15 |
| 6410843 | Solar cell module | Hitoshi Kishi, Seiichi Kiyama | 2002-06-25 |
| 6252785 | Device for operating inverter and power system | Ryuzo Hagihara, Takeo Ishida | 2001-06-26 |
| 6175512 | Device for operating inverter and power system | Ryuzo Hagihara, Takeo Ishida | 2001-01-16 |
| 5951785 | Photo-voltaic apparatus | Takeo Ishida, Hitoshi Kishi, Ryuzo Hagihara | 1999-09-14 |