Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8502191 | Semiconductor device, manufacturing method therefor, and solar cell | Takashi Suemasu | 2013-08-06 |
| 8187563 | Method for producing Si bulk polycrystal ingot | Kazuo Nakajima, Isao Takahashi | 2012-05-29 |
| 8017862 | Solar-cell single-crystal silicon substrate, solar cell element, and method for producing the same | Michio Kida, Wugen Pan, Kyojiro Kaneko, Kazuo Nakajima, Kozo Fujiwara | 2011-09-13 |
| 7750232 | Multi-crystalline silicon-germanium bulk crystal for use as a solar cell and method of making | Kazuo Nakajima, Wugen Pan, Kozo Fujiwara | 2010-07-06 |
| 7279632 | Multi-element polycrystal for solar cells and method of manufacturing the same | Kazuo Nakajima, Kozo Fujikawa, Wugen Pan | 2007-10-09 |