Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231826 | Process and apparatus for refining silicon | Kazuhiro Hanazawa, Masamichi Abe, Hiroyuki Baba, Naomichi Nakamura, Noriyoshi Yuge +2 more | 2001-05-15 |
| 5961944 | Process and apparatus for manufacturing polycrystalline silicon, and process for manufacturing silicon wafer for solar cell | Yoshiei Kato, Yasuhiko Sakaguchi, Noriyoshi Yuge, Hiroyuki Baba, Naomichi Nakamura +1 more | 1999-10-05 |
| 5510095 | Production of high-purity silicon ingot | Kyojiro Kaneko | 1996-04-23 |
| 5244639 | Method and apparatus for preparing high-purity metallic silicon | Tsuyoshi Fukutake | 1993-09-14 |
| 5182091 | Method and apparatus for purifying silicon | Noriyoshi Yuge, Hiroyuki Baba | 1993-01-26 |
| 5104633 | Method for producing high-purity metallic silicon and apparatus therefor | Yasuhiko Sakaguchi, Kazuhiro Uchino, Mitsugi Yoshiyagawa, Kunio Miyata, Masato Ishizaki +1 more | 1992-04-14 |