Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6949465 | Preparation process for semiconductor device | Hidemitsu Aoki, Kenichi Tokioka, Yoshiko Kasama, Keiji Hirano | 2005-09-27 |
| 6869921 | Stripping composition | Keiji Hirano, Masayuki Takashima, Kenichi Tokioka, Hidemitsu Aoki | 2005-03-22 |
| 6524376 | Anticorrosive agent | Hidemitsu Aoki, Kenichi Nakabeppu | 2003-02-25 |