Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10297463 | Method for manufacturing silicon wafer | Katsuyoshi Suzuki, Hiroshi Takeno | 2019-05-21 |
| 9390905 | Method for manufacturing silicon substrate and silicon substrate | Tetsuya Oka, Shuji Takahashi | 2016-07-12 |
| 9252025 | Method for manufacturing silicon single crystal wafer and electronic device | Tetsuya Oka | 2016-02-02 |
| 8377202 | Method for manufacturing silicon wafer and silicon wafer manufactured by this method | — | 2013-02-19 |
| 7839426 | Time recorder | — | 2010-11-23 |
| 6914442 | Method for measuring resistivity of semiconductor wafer | — | 2005-07-05 |
| 6589336 | Production method for silicon epitaxial wafer and silicon epitaxial wafer | Hiroki Ose, Yasuo Kasahara | 2003-07-08 |