Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9865885 | Manufacturing method of catalyst ink, manufacturing method of fuel cell, and fuel cell | Yoshihiro Hori, Yoshito Endou, Sozaburo Ohashi, Masao Okumura | 2018-01-09 |
| 9819030 | Production method of catalyst ink for fuel cell, manufacturing method of catalyst layer for fuel cell and manufacturing method of membrane electrode assembly for fuel cell | Masao Okumura | 2017-11-14 |