| Electra Holdings Co., Ltd. Patent applications |
| Patent application number | Title | Published |
| 20120097653 | Laser Refining Apparatus and Laser Refining Method - (Problem to be solved) | 04-26-2012 |
| 20110259319 | Solar Energy Absorber - It aims to provide a solar heat collecting apparatus that can efficiently collect energy from solar light. The solar heat collecting apparatus comprises an opened container part | 10-27-2011 |
| 20110110389 | Laser Oscillator - A laser oscillator for improving efficiency of conversion from solar rays to laser beams is provided. The laser oscillator includes: a laser medium | 05-12-2011 |