Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8445141 | Sulfonic acid group-containing polymer, method for producing the same, resin composition containing such sulfonic acid group-containing polymer, polymer electrolyte membrane, polymer electrolyte membrane/electrode assembly, and fuel cell | Kota Kitamura, Yoshimitsu Sakaguchi, Hiroki Yamaguchi, Masahiro Yamashita | 2013-05-21 |
| 8304133 | Method for producing a polymer electrolyte membrane | Hiroki Yamaguchi, Yoshimitsu Sakaguchi, Kouta Kitamura, Masahiro Yamashita | 2012-11-06 |
| 7537852 | Composite ion exchange membrane and electrolyte membrane electrode assembly | Shiro Hamamoto, Satoshi Takase, Yoshimitsu Sakaguchi, Shigenori Nagahara, Kota Kitamura +1 more | 2009-05-26 |