Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7842118 | Recycling method for scrap silicon | Takehiko Shimada | 2010-11-30 |
| 7815882 | Method and apparatus for refining boron-containing silicon using an electron beam | Takehiko Shimada, Masafumi Maeda | 2010-10-19 |
| 7799133 | Crucible apparatus and method of solidifying a molten material | Takehiko Shimada | 2010-09-21 |
| 7704478 | Method and apparatus for refining silicon using an electron beam | Takehiko Shimada, Minoru Mori | 2010-04-27 |
| 7687019 | Refining apparatus for scrap silicon using an electron beam | Takehiko Shimada | 2010-03-30 |
| 7632329 | Method of refining scrap silicon using an electron beam | Takehiko Shimada | 2009-12-15 |
| 7526388 | Method of selecting and analyzing scrap silicon | Takehiko Shimada | 2009-04-28 |
| 7195184 | Method of crushing silicon blocks | Takehiko Shimada | 2007-03-27 |