Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623801 | Method of producing high-purity polycrystalline silicon | Shinichiro Inoue | 2003-09-23 |
| 6503563 | Method of producing polycrystalline silicon for semiconductors from saline gas | Shinichiro Inoue | 2003-01-07 |
| RE36936 | Production of high-purity polycrystalline silicon rod for semiconductor applications | David W. Keck, Kenichi Nagai, Hiroshi Morihara, Junji Izawa, Renzin Paljor Yuthok | 2000-10-31 |
| 6106617 | Apparatus for feeding raw material into a quartz crucible | — | 2000-08-22 |
| 6019842 | Method and apparatus for loading raw material into a quartz crucible | — | 2000-02-01 |
| 6007621 | Apparatus for feeding raw material into a quartz crucible and method of feeding the same | — | 1999-12-28 |
| 5545387 | Production of high-purity polycrystalline silicon rod for semiconductor applications | David W. Keck, Kenichi Nagai, Hiroshi Morihara, Junji Izawa | 1996-08-13 |
| 5478396 | Production of high-purity polycrystalline silicon rod for semiconductor applications | David W. Keck, Kenichi Nagai, Hiroshi Morihara, Junji Izawa | 1995-12-26 |
| 4857270 | Process for manufacturing silicon-germanium alloys | Shinji Maruya, Kazuya Togashi | 1989-08-15 |
| 4565913 | Method for the disintegration of silicon for semiconductor | Meiseki Katayama | 1986-01-21 |