Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8877643 | Method of polishing a silicon wafer | Shuhei Matsuda, Tetsuro Iwashita, Ryuichi Tanimoto, Takeo Katoh | 2014-11-04 |
| 8147295 | Method of polishing silicon wafer | Takeo Katoh, Ryuichi Tanimoto, Shinichi Ogata, Kazushige Takaishi | 2012-04-03 |