Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6117231 | Method of manufacturing semiconductor silicon single crystal wafer | Izumi Fusegawa, Toshirou Hayashi, Ryoji Hoshi | 2000-09-12 |
| 6071337 | Apparatus and method for producing crystals by the czochralski method and crystals produced by this method | Masahiro Sakurada, Yuichi Miyahara | 2000-06-06 |
| 5972106 | Device and method for producing single crystal | Susumu Sonokawa, Satoshi Soeta, Yoshihiro Kodama | 1999-10-26 |
| 5948163 | Apparatus for manufacturing crystals according to the Czochralski method, and crystals manufactured by the manufacturing method | Masahiro Sakurada | 1999-09-07 |
| 5882398 | Method of manufacturing single crystal of silicon | Susumu Sonokawa, Toshiro Hayashi, Atsushi Iwasaki | 1999-03-16 |
| 5851283 | Method and apparatus for production of single crystal | Ryouji Hoshi, Masashi Sonokawa, Izumi Fusegawa | 1998-12-22 |
| 5766346 | Apparatus for producing silicon single crystal | Toshirou Hayashi, Ryouji Hoshi, Izumi Fusegawa | 1998-06-16 |
| 5725661 | Equipment for producing silicon single crystals | Izumi Fusegawa, Toshiro Hayashi, Masayuki Arai | 1998-03-10 |
| 5704973 | Apparatus and method for the uniform distribution of crystal defects upon a silicon single crystal | Masahiro Sakurada, Wataru Sato | 1998-01-06 |