Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876438 | Control of the power to the heater and the speed of movement of a crystal rod by control of the crystal rod diameter | Masataka Watanabe, Nobuhiro Ohhara | 1989-10-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876438 | Control of the power to the heater and the speed of movement of a crystal rod by control of the crystal rod diameter | Masataka Watanabe, Nobuhiro Ohhara | 1989-10-24 |