Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6949465 | Preparation process for semiconductor device | Hidemitsu Aoki, Yoshiko Kasama, Tatsuya Koito, Keiji Hirano | 2005-09-27 |
| 6869921 | Stripping composition | Tatsuya Koito, Keiji Hirano, Masayuki Takashima, Hidemitsu Aoki | 2005-03-22 |