Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12031231 | Low resistivity wafer | Yasuhito Narushima | 2024-07-09 |
| 11598023 | Low resistivity wafer and method of manufacturing thereof | Yasuhito Narushima | 2023-03-07 |
| 11047065 | Method for producing silicon single crystal, heat shield, and single crystal pulling device | Yasuhito Narushima | 2021-06-29 |
| 10329686 | Method for producing single crystal | Yasuhito Narushima, Toshimichi Kubota | 2019-06-25 |
| 10233562 | Method for producing single crystal, and method for producing silicon wafer | Yasuhito Narushima, Toshimichi Kubota, Fukuo Ogawa | 2019-03-19 |
| 10227710 | Manufacturing method of silicon monocrystal | Yasuhito Narushima, Toshimichi Kubota | 2019-03-12 |
| 10100429 | Method for producing a silicon single crystal doped with red phosphorous with reduced number of stacking faults and method for producing a silicon wafer using the same | Yasuhito Narushima, Toshimichi Kubota | 2018-10-16 |
| 8888911 | Method of producing single crystal silicon | Tuneaki Tomonaga, Toshimichi Kubota, Fukuo Ogawa, Yasuhito Narushima | 2014-11-18 |