Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886647 | Supporting apparatus for semiconductor crystal rod | Kouji Mizuishi | 1989-12-12 |
| 4866230 | Method of and apparatus for controlling floating zone of semiconductor rod | Kunio Suzuki, Masataka Watanabe, Nobuhiro Ohara | 1989-09-12 |