Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012258 | Melt surface position monitoring apparatus in silicon single crystal growth process | Hiroshi Hayakawa | 2011-09-06 |
| 7264674 | Method for pulling a single crystal | Keiichi Takanashi, Ken Hamada | 2007-09-04 |
| 6416576 | Method for producing single crystal | Masahiko Mizuta, Masato Tabuchi | 2002-07-09 |
| 6411391 | Crystal section shape measuring method | Keiichi Takanashi, Kazuo Hiramoto | 2002-06-25 |
| 6187090 | Methods and a device for measuring melt surface temperature within apparatus for pulling a single crystal | Keiichi Takanashi | 2001-02-13 |
| 6056819 | Method for pulling a single crystal | Masahiro Ogawa, Toshiyuki Yamamoto, Yoshiyuki KASHIWARA | 2000-05-02 |