Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814547 | Polishing liquid composition for silicon oxide film | Haruhiko Doi, Masato Sugahara, Takanao Seike, Masaki Inoue | 2023-11-14 |
| 8956430 | Polishing composition | — | 2015-02-17 |
| 8834589 | Polishing composition for magnetic disk substrate | Yoshiaki Oshima, Haruhiko Doi | 2014-09-16 |