Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7442729 | Composition of epoxy resin, polyphenolic compound and trisubstituted phosphonionphenolate salt | Akiko Okubo, Yoshiyuki Goh, Yoshihito Akiyama, Hiroshi Hirose, Hirotaka Nonaka | 2008-10-28 |
| 7074738 | Curing accelerator, epoxy resin composition, and semiconductor device | Akiko Okubo, Yoshiyuki Goh, Yoshihito Akiyama, Hiroshi Hirose, Hirotaka Nonaka | 2006-07-11 |