Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7141113 | Production method for silicon single crystal and production device for single crystal ingot, and heat treating method for silicon crystal wafer | Kozo Nakamura, Toshiaki Saishoji, Hirotaka Nakajima, Shinya Sadohara, Masashi Nishimura +1 more | 2006-11-28 |
| 6858076 | Method and apparatus for manufacturing single-crystal ingot | Hirotaka Nakajima, Toshirou Kotooka, Hiroshi Inagaki, Shigeki Kawashima, Makoto Kamogawa | 2005-02-22 |
| 6117402 | Device for manufacturing single crystals | Toshirou Kotooka, Makoto Kamogawa | 2000-09-12 |
| 6071341 | Apparatus for fabricating single-crystal silicon | Toshimichi Kubota, Toshirou Kotooka, Makoto Kamogawa | 2000-06-06 |
| 6036776 | Method and device for manufacturing single crystals | Toshiro Kotooka, Makoto Kamogawa | 2000-03-14 |
| 5935326 | Apparatus for manufacturing semiconductor single crystals | Toshirou Kotooka, Toshimichi Kubota, Makoto Kamogawa | 1999-08-10 |
| 5900059 | Method and apparatus for fabricating semiconductor single crystal | Toshimichi Kubota, Toshirou Kotooka, Makoto Kamogawa | 1999-05-04 |