Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6112805 | Continuous casting mold for billet | Masatsugu Uehara, Toshiki Sato, Kazutoki Nakao | 2000-09-05 |
| 6024162 | Continuous casting method for billet | Masatsugu Uehara, Toshiki Sato, Kazutoki Nakao | 2000-02-15 |
| 4457901 | Method of refining silicon tetrafluoride gas | Naomichi Kitsugi, Toyozo Otsuka | 1984-07-03 |
| 4382071 | Process of preparing silicon tetrafluoride by using hydrogen fluoride gas | Toyozo Otsuka, Naomichi Kitsugi | 1983-05-03 |