Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730800 | Fused silica glass crucible | Wataru Sato, Ohta Tomohiko, Katsuhiko Kemmochi | 1998-03-24 |
| 5728211 | Silicon single crystal with low defect density and method of producing same | Kiyotaka Takano, Kouji Kitagawa, Eiichi Iino, Masanori Kimura, Hirotoshi Yamagishi | 1998-03-17 |
| 5704973 | Apparatus and method for the uniform distribution of crystal defects upon a silicon single crystal | Wataru Sato, Tomohiko Ohta | 1998-01-06 |
| 5667584 | Method for the preparation of a single crystal of silicon with decreased crystal defects | Kiyotaka Takano, Eiichi Iino, Hirotoshi Yamagishi | 1997-09-16 |
| 5609682 | Method for the preparation of silicon single crystal | Wataru Sato, Ohta Tomohiko, Katsuhiko Kemmochi | 1997-03-11 |