Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8470917 | Production method of polyimide solution and fluorinated polyimide solution | Kozo Tajiri, Tomomi Makino, Yoko Matsui | 2013-06-25 |
| 7741426 | Method for production of fluorinated phenylenediamine | Shinji Nishimae, Yasunori Okumura | 2010-06-22 |
| 7700647 | Fluorinated bis (phthalic anhydride) and method for producing the same | Yasunori Okumura, Shinji Nishimae | 2010-04-20 |