Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8361223 | Method for measuring liquid level in single crystal pulling apparatus employing CZ method | Ayumi Kihara, Takuaki Takami | 2013-01-29 |
| 8130386 | Position measuring method | Naoji Mitani, Ayumi Kihara | 2012-03-06 |
| 8115908 | Position measuring device and position measuring method in semiconductor single crystal manufacturing device | Ayumi Kihara, Naoji Mitani | 2012-02-14 |
| 6994748 | Method and apparatus for measuring melt level | Masato Moriya, Tadayuki Hanamoto, Hiroshi Monden, Toshirou Kotooka | 2006-02-07 |