Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5584930 | Method for measuring the diameter of a single crystal ingot | Yoshihiro Hirano, Atsushi Ozaki, Masahiko Baba | 1996-12-17 |
| 5096677 | Single crystal pulling apparatus | Koji Mizuishi, Shinichi Furuse, Shigemaru Maeda | 1992-03-17 |
| 4973377 | Crystal diameter controlling method | Yoshihiro Hirano, Atsushi Ozaki | 1990-11-27 |
| 4926357 | Apparatus for measuring diameter of crystal | Yoshihiro Hirano, Tomohiro Kakegawa | 1990-05-15 |
| 4918520 | Device for detecting the position of crystallization interface | Masahiko Nigorikawa, Shuji Ohmori | 1990-04-17 |
| 4916955 | Crystal ingot lifting load measuring device | Kouji Mizuishi, Yoshihiro Hirano, Kenichi Sato, Seiichiro Otsuka | 1990-04-17 |
| 4915775 | Apparatus for adjusting initial position of melt surface | Yoshihiro Hirano, Munenori Tomita, Atsushi Ozaki | 1990-04-10 |
| 4794263 | Apparatus for measuring crystal diameter | Yoshihiro Hirano, Atsushi Ozaki, Masahiko Baba | 1988-12-27 |