Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12215189 | Bisphenol composition and polycarbonate resin | Masashi Yokogi, Hiroki Shibata, Sora Tomita, Yuichi Yayama, Kenji Tsuruhara +4 more | 2025-02-04 |
| 11634373 | Bisphenol composition and method for producing same, and polycarbonate resin and method for producing same | Kazuhisa Hatakeyama, Makoto Nakamura, Toshio Uchibori, Michitaka Ise | 2023-04-25 |
| 11427523 | Bisphenol composition containing aromatic alcohol sulfonate and method for producing same, polycarbonate resin and method for producing same, and bisphenol production method | Takayuki Yoshida, Rie Konishi, Kazuo Hirowatari, Takaharu Oono | 2022-08-30 |