Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159858 | Slurry containing manganese oxide and a fabrication process of a semiconductor device using such a slurry | Sadahiro Kishii, Ko Nakamura, Yoshihiro Arimoto, Akiyoshi Hatada, Rintaro Suzuki +1 more | 2000-12-12 |
| 5951724 | Fine particulate polishing agent, method for producing the same and method for producing semiconductor devices | Kenzo Hanawa, Naoyoshi Mochizuki, Kazuhiko Kato | 1999-09-14 |
| 5938837 | Cerium oxide ultrafine particles and method for preparing the same | Kenzo Hanawa, Naoyoshi Mochizuki | 1999-08-17 |
| 5766279 | Polishing agent, method for producing the same and method for polishing | Norikazu Yamamoto, Kenzo Hanawa, Kazuhiko Kato | 1998-06-16 |