Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9248408 | Hollow-fiber element for organic-vapor separation | Yuma Irisa, Kenji Fukunaga | 2016-02-02 |
| 9211497 | Asymmetric gas separation membrane and method for separating methanol from mixed organic vapor using the same | Ryoichi Takada, Harutoshi Hoshino, Toshimune Yoshinaga, Kenji Fukunaga | 2015-12-15 |
| 8734568 | Asymmetric hollow fiber gas separation membrane | Hiroki Hisamori, Tatsuya Hayashi, Seiji Morihashi | 2014-05-27 |
| 8580012 | Solvent-resistant asymmetric hollow fiber gas separation membrane, and method for production thereof | Harutoshi Hoshino, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga | 2013-11-12 |
| 8409325 | Asymmetric gas separation membrane and process for gas separation | Toshimune Yoshinaga, Makoto Nakamura, Yoji Kase, Kenji Fukunaga | 2013-04-02 |
| 8394176 | Polyimide gas separation membrane and gas separation method | Harutoshi Hoshino, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga | 2013-03-12 |
| 8388733 | Hollow-fiber element for organic-vapor separation | Shoichi Yamaoka, Shigekazu Okamura, Masao Kikuchi, Yuma Irisa | 2013-03-05 |
| 7285688 | Proton type β zeolite, preparation method thereof and process for preparing phenol compound using the same | Takashi Atoguchi, Shigeru Yao | 2007-10-23 |
| 6541073 | Zirconium oxide and zirconium oxide precursor and process for producing them | Shigeru Yao, Yoshihisa Kakuta, Takashi Atoguchi | 2003-04-01 |
| 6441250 | Process for producing dihydric phenol | Takashi Atoguchi, Shigeru Yao | 2002-08-27 |